LKQ (LKQ) 10-K 27 Feb 20 2019 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2019	Feb. 21, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	000-50404
Entity Registrant Name	LKQ CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-4215970
Entity Address, Address Line One	500 West Madison Street,
Entity Address, Address Line Two	Suite 2800,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60661
City Area Code	312
Local Phone Number	621-1950
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	LKQ
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 8.2
Entity Common Stock, Shares Outstanding		307,148,085
Entity Central Index Key	0001065696
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Amendment Flag	false

Consolidated Statements of Inco

Consolidated Statements of Income Statement - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue	$ 12,506,109	$ 11,876,674	$ 9,736,909
Cost of goods sold	7,654,315	7,301,817	5,937,286
Gross margin	4,851,794	4,574,857	3,799,623
Selling, general and administrative expenses	3,580,300	3,352,731	2,715,407
Restructuring and acquisition related expenses	36,979	32,428	19,672
Restructuring Charges And Business Combination Acquisition Related Costs net of Restructuring Depreciation	34,658	32,428	19,672
Impairment of net assets held for sale and goodwill	47,102	33,244	0
Depreciation and amortization	290,770	274,213	219,546
Operating income	896,643	882,241	844,998
Other expense (income):
Interest expense	138,504	146,377	101,640
(Gain) loss on debt extinguishment	(128)	1,350	456
Interest income and other income, net	(32,755)	(8,917)	(23,725)
Total other expense, net	105,621	138,810	78,371
Income from continuing operations before provision for income taxes	791,022	743,431	766,627
Provision for income taxes	215,330	191,395	235,560
Equity in (losses) earnings of unconsolidated subsidiaries	(32,277)	(64,471)	5,907
Income from continuing operations	543,415	487,565	536,974
Net income (loss) from discontinued operations	1,619	(4,397)	(6,746)
Net income	545,034	483,168	530,228
Less: net income (loss) attributable to continuing noncontrolling interest	2,800	3,050	(3,516)
Less: net income attributable to discontinued noncontrolling interest	974	0	0
Net income attributable to LKQ stockholders	$ 541,260	$ 480,118	$ 533,744
Basic earnings per share: (1)
Income from continuing operations	$ 1.75	$ 1.55	$ 1.74
Net income (loss) from discontinued operations	0.01	(0.01)	(0.02)
Net income	1.76	1.54	1.72
Less: net income (loss) attributable to continuing noncontrolling interest	0.01	0.01	(0.01)
Less: net income attributable to discontinued noncontrolling interest	0	0	0
Net income attributable to LKQ stockholders	1.75	1.53	1.73
Diluted earnings per share: (1)
Income from continuing operations	1.75	1.54	1.73
Net income (loss) from discontinued operations	0.01	(0.01)	(0.02)
Net income	1.75	1.53	1.71
Less: net income (loss) attributable to continuing noncontrolling interest	0.01	0.01	(0.01)
Less: net income attributable to discontinued noncontrolling interest	0	0	0
Net income attributable to LKQ stockholders	$ 1.74	$ 1.52	$ 1.72

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 545,034	$ 483,168	$ 530,228
Less: net income (loss) attributable to continuing noncontrolling interest	2,800	3,050	(3,516)
Less: net income attributable to discontinued noncontrolling interest	974	0	0
Net income attributable to LKQ stockholders	541,260	480,118	533,744
Other comprehensive income (loss):
Foreign currency translation, net of tax	6,704	(108,523)	200,596
Net change in unrealized gains/losses on cash flow hedges, net of tax	(9,016)	350	3,447
Net change in unrealized gains/losses on pension plans, net of tax	(23,859)	697	(6,035)
Net change in other comprehensive income (loss) from unconsolidated subsidiaries	236	(2,343)	(1,309)
Other comprehensive (loss) income	(25,935)	(109,819)	196,699
Comprehensive income	519,099	373,349	726,927
Less: comprehensive income (loss) attributable to continuing noncontrolling interest	2,800	3,050	(3,516)
Less: comprehensive income attributable to discontinued noncontrolling interest	974	0	0
Comprehensive income attributable to LKQ stockholders	$ 515,325	$ 370,299	$ 730,443

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 523,020	$ 331,761
Receivables, net	1,131,132	1,154,083
Inventories	2,772,777	2,836,075
Prepaid expenses and other current assets	260,890	199,030
Total current assets	4,687,819	4,520,949
Property, plant and equipment, net	1,234,400	1,220,162
Operating lease assets, net	1,308,511	0
Intangible assets:
Goodwill	4,406,535	4,381,458
Other intangibles, net	850,338	928,752
Equity method investments	139,243	179,169
Other noncurrent assets	153,110	162,912
Total assets	12,779,956	11,393,402
Current liabilities:
Accounts payable	942,795	942,398
Accrued expenses:
Accrued payroll-related liabilities	179,203	172,005
Refund liability	289,683	288,425
Other accrued expenses	97,314	104,585
Other current liabilities	121,623	61,109
Current portion of operating lease liabilities	221,527	0
Current portion of long-term obligations	326,367	121,826
Total current liabilities	2,178,512	1,690,348
Long-term operating lease liabilities, excluding current portion	1,137,597	0
Long-term obligations, excluding current portion	3,715,389	4,188,674
Deferred income taxes	310,129	311,434
Other noncurrent liabilities	365,672	364,194
Commitments and contingencies
Redeemable noncontrolling interest	24,077	0
Stockholders' equity:
Common stock, $0.01 par value, 1,000,000,000 shares authorized, 319,927,243 shares issued and 306,731,328 shares outstanding at December 31, 2019; 318,417,821 shares issued and 316,146,114 shares outstanding at December 31, 2018	3,199	3,184
Additional paid-in capital	1,418,239	1,415,188
Retained earnings	4,140,136	3,598,876
Accumulated other comprehensive loss	(200,885)	(174,950)
Treasury stock, at cost; 13,195,915 shares at December 31, 2019 and 2,271,707 shares at December 31, 2018	(351,813)	(60,000)
Total Company stockholders' equity	5,008,876	4,782,298
Noncontrolling interest	39,704	56,454
Total stockholders' equity	5,048,580	4,838,752
Total liabilities and stockholders' equity	$ 12,779,956	$ 11,393,402

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	319,927,243	318,417,821
Common stock, shares outstanding	306,731,328	316,146,114
Treasury Stock, Common, Shares	13,195,915	2,271,707

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 545,034	$ 483,168	$ 530,228
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	314,406	294,077	230,203
Impairment of equity method investments	41,057	70,895	0
Impairment of net assets held for sale and goodwill	47,102	33,244	0
Stock-based compensation expense	27,695	22,760	22,832
Deferred income taxes	7,109	(2,180)	(46,537)
Other	(16,311)	8,466	8,683
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:
Receivables, net	26,419	241	(55,979)
Inventories	15,460	(127,153)	(203,857)
Prepaid income taxes/income taxes payable	25,776	(2,125)	8,376
Accounts payable	3,712	(77,621)	45,136
Other operating assets and liabilities	26,574	6,967	(20,185)
Net cash provided by operating activities	1,064,033	710,739	518,900
Purchases of property, plant and equipment	(265,730)	(250,027)	(179,090)
Proceeds from Disposal of Property, Plant, and Equipment	16,045	27,659	8,707
Acquisitions, net of cash and restricted cash acquired	(27,296)	(1,214,995)	(513,088)
Proceeds from disposal of businesses	18,469	0	301,297
Investments in unconsolidated subsidiaries	(7,594)	(60,300)	(7,664)
Receipts of deferred purchase price on receivables under factoring arrangements	0	36,991	0
Other investing activities, net	1,253	1,733	5,243
Net cash used in investing activities	(264,853)	(1,458,939)	(384,595)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs	0	(21,128)	(4,267)
Proceeds from issuance of Euro Notes (2026/28)	0	1,232,100	0
Purchase of treasury stock	(291,813)	(60,000)	0
Borrowings under revolving credit facilities	605,708	1,667,325	839,171
Repayments under revolving credit facilities	(734,471)	(1,528,970)	(946,477)
Repayments under term loans	(8,750)	(354,800)	(27,884)
Borrowings under receivables securitization facility	36,600	10,120	11,245
Repayments under receivables securitization facility	(146,600)	(120)	(11,245)
Payment of notes issued and assumed debt from acquisitions	(19,123)	(54,888)	0
(Repayments) borrowings of other debt, net	(33,922)	(11,730)	19,706
Other financing activities, net	8,298	(5,086)	(7,184)
Net cash (used in) provided by financing activities	(600,669)	882,995	(112,567)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(904)	(77,311)	23,512
Net increase in cash, cash equivalents and restricted cash	197,607	57,484	45,250
Cash, cash equivalents and restricted cash of continuing operations, beginning of period	337,250	279,766	227,400
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period	0	0	(7,116)
Cash, cash equivalents and restricted cash of continuing and discontinued operations, beginning of period	337,250	279,766	234,516
Less: Cash and cash equivalents of discontinued operations, end of period	6,470	0	0
Cash, cash equivalents and restricted cash of continuing and discontinued operations, end of period	534,857	337,250	279,766
Reconciliation Of Cash, Cash Equivalents And Restricted Cash [Abstract]
Cash and cash equivalents	523,020	331,761	279,766
Restricted cash included in Other noncurrent assets	5,367	5,489	0
Cash, cash equivalents and restricted cash, end of period	528,387	337,250	279,766
Supplemental disclosure of cash paid for:
Income taxes, net of refunds	181,306	200,098	273,019
Interest	143,121	137,866	95,707
Supplemental disclosure of noncash investing and financing activities:
Stock issued in acquisitions	0	251,334	0
Noncash property, plant and equipment additions	10,154	16,518	18,122
Notes payable and other financing obligations, including notes issued, debt assumed and settlement of pre-existing balances in connection with business acquisitions	47,887	105,566	59,045
Notes and other financing receivables in connection with disposals of business/investment	0	0	4,000
Notes issued in connection with purchase of noncontrolling interest	14,196	0	0
Contingent consideration liabilities	$ 6,627	$ 3,107	$ 6,234

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest [Member]
Treasury Stock, Value			0
January 1, 2017 at Dec. 31, 2016		307,545
January 1, 2017 at Dec. 31, 2016	$ 3,442,949	$ 3,075	$ 0	$ 1,116,690	$ 2,590,359	$ (267,175)	$ 0
Net income	(530,228)				(533,744)		(3,516)
Other comprehensive income	196,699					196,699
Vesting of restricted stock units, net of shares withheld for employee tax		749
Vesting of restricted stock units, net of shares withheld for employee tax	(4,325)	$ 7		(4,332)
Stock-based compensation expense	22,832			22,832
Exercise of stock options		867
Exercise of stock options	7,470	$ 9		7,461
January 1, 2017 at Dec. 31, 2017		309,127
January 1, 2017 at Dec. 31, 2017	4,206,653	$ 3,091	$ 0	1,141,451	3,124,103	(70,476)	8,484
Stock issued in acquisitions	0
Tax withholdings related to net share settlements of stock-based compensation awards		(34)
Tax withholdings related to net share settlements of stock-based compensation awards	1,200	$ 0		1,200
Sale of subsidiary shares to noncontrolling interest	12,000						12,000
Treasury Stock, Value			0
Net income	(483,168)				(480,118)		3,050
Other comprehensive income	(109,819)					(109,819)
Vesting of restricted stock units, net of shares withheld for employee tax		603
Vesting of restricted stock units, net of shares withheld for employee tax	(3,796)	$ 6		(3,802)
Stock-based compensation expense	22,760			22,760
Exercise of stock options		686
Exercise of stock options	5,303	$ 7		5,296
January 1, 2017 at Dec. 31, 2018		318,418
January 1, 2017 at Dec. 31, 2018	4,838,752	$ 3,184	$ (60,000)	1,415,188	3,598,876	(174,950)	56,454
Stock issued in acquisitions		8,056
Stock issued in acquisitions	251,334	$ 81		251,253
Treasury Stock, Shares, Acquired			(2,272)
Treasury Stock, Value, Acquired, Cost Method	(60,000)		$ (60,000)
Tax withholdings related to net share settlements of stock-based compensation awards		(54)
Tax withholdings related to net share settlements of stock-based compensation awards	1,771	$ (1)		(1,770)
Adoption of ASU 2018-02 (see Note 4)	5,345				(5,345)	5,345
Capital contributions from, net of dividends declared to, noncontrolling interest shareholder	810						810
Acquired noncontrolling interest	44,110						44,110
Treasury Stock, Value			(2,272)
Net income	(545,034)				(541,260)		(3,774)
Other comprehensive income	(25,935)					(25,935)
Vesting of restricted stock units, net of shares withheld for employee tax		719
Vesting of restricted stock units, net of shares withheld for employee tax	(2,084)	$ 7		(2,091)
Stock-based compensation expense	27,695			27,695
Exercise of stock options		927
Exercise of stock options	9,055	$ 9		9,046
January 1, 2017 at Dec. 31, 2019		319,927
January 1, 2017 at Dec. 31, 2019	5,048,580	$ 3,199	$ (351,813)	1,418,239	$ 4,140,136	$ (200,885)	39,704
Stock issued in acquisitions	0
Treasury Stock, Shares, Acquired			(10,924)
Treasury Stock, Value, Acquired, Cost Method	(291,813)		$ (291,813)
Tax withholdings related to net share settlements of stock-based compensation awards		(137)
Tax withholdings related to net share settlements of stock-based compensation awards	(4,495)	$ 1		4,494
Capital contributions from, net of dividends declared to, noncontrolling interest shareholder	(8,474)						(8,474)
Acquired noncontrolling interest	10,365						10,365
Purchase and modification of noncontrolling interests (2)	$ (49,520)			$ (27,105)			$ (22,415)
Treasury Stock, Value			(13,196)

Business

Business	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	Business The financial statements represent the consolidation of LKQ Corporation, a Delaware corporation, and its subsidiaries. LKQ Corporation is a holding company and all operations are conducted by subsidiaries. When the terms "LKQ," "the Company," "we," "us," or "our" are used in this document, those terms refer to LKQ Corporation and its consolidated subsidiaries. We are a leading provider of alternative vehicle collision replacement products and alternative vehicle mechanical replacement products, with our sales, processing, and distribution facilities reaching most major markets in the United States and Canada. We are also a leading provider of alternative vehicle replacement and maintenance products in the United Kingdom, Germany, the Benelux region (Belgium, Netherlands, and Luxembourg), Italy, Czech Republic, Poland, Slovakia, Austria, and various other European countries. In addition to our wholesale operations, we operate self service retail facilities across the U.S. that sell recycled automotive products from end-of-life vehicles. We are also a leading distributor of specialty vehicle aftermarket equipment and accessories reaching most major markets in the U.S. and Canada. In total, we operate approximately 1,700

Business Combinations (Notes)

Business Combinations (Notes)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Business Combinations	Business Combinations During the year ended December 31, 2019 , we completed seven acquisitions, including three wholesale businesses and one self service business in North America, and three wholesale businesses in Europe. These acquisitions were not material to our results of operations or financial position as of and for the year ended December 31, 2019 . Total acquisition date fair value of the consideration for our acquisitions for the year ended December 31, 2019 was $63 million , composed of $29 million of cash paid (net of cash acquired), $7 million for the estimated value of contingent payments to former owners (with maximum payments totaling $8 million ), $2 million of other purchase price obligations (non-interest bearing), $21 million of notes payable, and $5 million of pre-existing balances considered to be effectively settled as a result of the acquisitions. In addition, we assumed $8 million of existing debt as of the acquisition dates. On May 30, 2018 , we acquired Stahlgruber, a leading European wholesale distributor of aftermarket spare parts for passenger cars, tools, capital equipment and accessories with operations in Germany, Austria, Italy, Slovenia, and Croatia, with further sales to Switzerland. Total acquisition date fair value of the consideration for our Stahlgruber acquisition was € 1.2 billion ($ 1.4 billion ), composed of € 1.0 billion ($ 1.1 billion ) of cash paid (net of cash acquired), and € 215 million ($ 251 million ) of newly issued shares of LKQ common stock. We financed the acquisition with the proceeds from €1.0 billion ( $1.2 billion ) of senior notes, the direct issuance to Stahlgruber's owner of 8,055,569 newly issued shares of LKQ common stock, and borrowings under our existing revolving credit facility. We recorded $915 million ( $908 million in 2018 and $7 million of adjustments in the six months ended June 30, 2019) of goodwill related to our acquisition of Stahlgruber, of which we expected $300 million to be deductible for income tax purposes. In the period between the acquisition date and December 31, 2018 , Stahlgruber, which is reported in our Europe reportable segment, generated third party revenue of $1.1 billion and operating income of $52 million . On May 3, 2018, the European Commission cleared the acquisition of Stahlgruber for the entire European Union, except with respect to the wholesale automotive parts business in the Czech Republic. The acquisition of Stahlgruber’s Czech Republic wholesale business was referred to the Czech Republic competition authority for review. On May 10, 2019, the Czech Republic competition authority approved our acquisition of Stahlgruber’s Czech Republic wholesale business subject to the requirement that we divest certain of the acquired locations. We acquired Stahlgruber’s Czech Republic wholesale business on May 29, 2019 and decided to divest all of the acquired locations. We immediately classified the business as discontinued operations because the business was never integrated into our Europe segment; see Note 3, "Discontinued Operations " for further information. The Czech Republic wholesale business represents an immaterial portion of Stahlgruber's revenue and profitability. There was no additional consideration beyond the previously remitted amounts for the Stahlgruber transaction required to complete the acquisition of the Czech Republic wholesale business. In addition to our acquisition of Stahlgruber, during the year ended December 31, 2018, we completed acquisitions of four wholesale businesses in North America and nine wholesale businesses in Europe. Total acquisition date fair value of the consideration for these acquisitions was $99 million , composed of $ 85 million of cash paid (net of cash and restricted cash acquired), $11 million of notes payable, and $3 million for the estimated value of contingent payments to former owners (with maximum potential payments totaling $5 million ). During the year ended December 31, 2018 , we recorded $68 million of goodwill related to these acquisitions, of which we expected $4 million to be deductible for income tax purposes. In the period between the acquisition dates and December 31 2018, these acquisitions generated third party revenue of $46 million and operating income of $3 million . During the year ended December 31, 2017, we completed 26 acquisitions including 6 wholesale businesses in North America, 16 wholesale businesses in Europe and 4 Specialty businesses. Our acquisitions in Europe included the acquisition of four aftermarket parts distribution businesses in Belgium in July 2017. Our Specialty acquisitions included the acquisition of the aftermarket business of Warn, a leading designer, manufacturer and marketer of high performance vehicle equipment and accessories, in November 2017. Total acquisition date fair value of the consideration for our 2017 acquisitions was $542 million , composed of $510 million of cash paid (net of cash acquired), $6 million for the estimated value of contingent payments to former owners (with maximum potential payments totaling $19 million ), $5 million of other purchase price obligations (non-interest bearing) and $20 million of notes payable. During the year ended December 31, 2017, we recorded $307 million of goodwill related to these acquisitions, of which we expected $21 million to be deductible for income tax purposes. In the period between the acquisition dates and December 31, 2017, these acquisitions generated revenue of $227 million and an operating loss of $2 million . On October 4, 2016, we acquired substantially all of the business assets of Andrew Page, a distributor of aftermarket automotive parts in the U.K., out of receivership. The acquisition was subject to regulatory approval by the CMA in the U.K. The CMA concluded its review on October 31, 2017 and required us to divest less than 10% of the acquired locations. Total acquisition date fair value of the consideration for this acquisition was £16 million ( $20 million ). In connection with the acquisition, we recorded a gain on bargain purchase of $10 million ( $8 million recorded in 2016 and $2 million recorded in 2017), which is presented in Interest income and other income, net in our Consolidated Statements of Income. We believe that we were able to acquire the net assets of Andrew Page for less than fair value as a result of (i) Andrew Page's financial difficulties that put the company into receivership prior to our acquisition and (ii) a motivated seller that desired to complete the sale in an expedient manner to ensure continuity of the business. Our acquisitions are accounted for under the purchase method of accounting and are included in our consolidated financial statements from the dates of acquisition. The purchase prices were allocated to the net assets acquired based upon estimated fair values at the dates of acquisition. The purchase price allocations for the acquisitions made during the year ended December 31, 2019 are preliminary as we are in the process of determining the following: 1) valuation amounts for certain receivables, inventories and fixed assets acquired; 2) valuation amounts for certain intangible assets acquired; 3) the acquisition date fair value of certain liabilities assumed; and 4) the tax basis of the entities acquired. We have recorded preliminary estimates for certain of the items noted above and will record adjustments, if any, to the preliminary amounts upon finalization of the valuations. During the year ended December 31, 2019 , the measurement period adjustments recorded for acquisitions completed in prior periods were not material. The income statement effect of these measurement period adjustments that would have been recorded in previous reporting periods if the adjustments had been recognized as of the acquisition dates was immaterial. The purchase price allocations for the acquisitions completed during the year ended December 31, 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Receivables $ 144,826 $ 19,171 $ 163,997 Receivable reserves (2,818 ) (918 ) (3,736 ) Inventories 380,238 14,021 394,259 Prepaid expenses and other current assets 10,970 1,851 12,821 Property , plant and equipment 271,292 5,711 277,003 Goodwill 908,253 64,637 972,890 Other intangibles 285,255 35,159 320,414 Other noncurrent assets 16,625 37 16,662 Deferred income taxes (78,130 ) (5,285 ) (83,415 ) Current liabilities assumed (346,788 ) (20,116 ) (366,904 ) Debt assumed (79,925 ) (4,875 ) (84,800 ) Other noncurrent liabilities assumed (2) (80,824 ) (10,306 ) (91,130 ) Noncontrolling interest (44,110 ) — (44,110 ) Contingent consideration liabilities — (3,107 ) (3,107 ) Other purchase price obligations (6,084 ) 3,623 (2,461 ) Stock issued (251,334 ) — (251,334 ) Notes issued — (11,347 ) (11,347 ) Gains on bargain purchases (3) — (2,418 ) (2,418 ) Settlement of other purchase price obligations (non-interest bearing) — 1,711 1,711 Cash used in acquisitions, net of cash and restricted cash acquired $ 1,127,446 $ 87,549 $ 1,214,995 (1) The amounts recorded during the year ended December 31, 2018 include a $5 million adjustment to increase other intangibles related to our Warn acquisition and $4 million of adjustments to reduce other purchase price obligations related to other 2017 acquisitions. (2) The amount recorded for our acquisition of Stahlgruber includes a $79 million liability for certain pension obligations. (3) The amounts recorded during the year ended December 31, 2018 are due to the gains on bargain purchases related to (i) an acquisition in Europe completed in the second quarter of 2017 as a result of changes in the acquisition date fair value of the consideration, and (ii) three acquisitions in Europe completed during 2018. The fair value of our intangible assets is based on a number of inputs, including projections of future cash flows, discount rates, assumed royalty rates and customer attrition rates, all of which are Level 3 inputs. We used the relief-from-royalty method to value trade names, trademarks, software and other technology assets, and we used the multi-period excess earnings method to value customer relationships. The relief-from-royalty method assumes that the intangible asset has value to the extent that its owner is relieved of the obligation to pay royalties for the benefits received from the intangible asset. The multi-period excess earnings method is based on the present value of the incremental after-tax cash flows attributable only to the customer relationship after deducting contributory asset charges. The fair value of our property, plant and equipment is determined using inputs such as market comparables and current replacement or reproduction costs of the asset, adjusted for physical, functional and economic factors; these adjustments to arrive at fair value use unobservable inputs in which little or no market data exists, and therefore, these inputs are considered to be Level 3 inputs. See Note 12, "Fair Value Measurements " for further information regarding the tiers in the fair value hierarchy. The acquisition of Stahlgruber expanded LKQ's geographic presence in continental Europe and serves as an additional strategic hub for our European operations. In addition, the acquisition of Stahlgruber should allow for continued improvement in procurement, logistics and infrastructure optimization. The primary objectives of our other acquisitions made during the years ended December 31, 2019 and 2018 were to create economic value for our stockholders by enhancing our position as a leading source for alternative collision and mechanical repair products and to expand into other product lines and businesses that may benefit from our operating strengths. When we identify potential acquisitions, we attempt to target companies with a leading market presence, an experienced management team and workforce that provides a fit with our existing operations, and strong cash flows. For certain of our acquisitions, we have identified cost savings and synergies as a result of integrating the company with our existing business that provide additional value to the combined entity. In many cases, acquiring companies with these characteristics will result in purchase prices that include a significant amount of goodwill. The following pro forma summary presents the effect of the businesses acquired during the year ended December 31, 2019 as though the businesses had been acquired as of January 1, 2018, the businesses acquired during the year ended December 31, 2018 as though they had been acquired as of January 1, 2017, and the businesses acquired during the year ended December 31, 2017 as though they had been acquired as of January 1, 2016. We have excluded the May 29, 2019 acquisition of the Czech Republic wholesale business as the business was never integrated into our Europe segment. The pro forma adjustments are based upon unaudited financial information of the acquired entities (in thousands): Year Ended December 31, 2019 2018 2017 Revenue, as reported $ 12,506,109 $ 11,876,674 $ 9,736,909 Revenue of purchased businesses for the period prior to acquisition: Stahlgruber — 815,405 1,756,893 Other acquisitions 24,614 164,133 448,721 Pro forma revenue $ 12,530,723 $ 12,856,212 $ 11,942,523 Income from continuing operations, as reported (1) $ 543,415 $ 487,565 $ 536,974 Income from continuing operations of purchased businesses for the period prior to acquisition, and pro forma purchase accounting adjustments: Stahlgruber 14,481 17,309 4,796 Other acquisitions 3,664 6,591 16,667 Acquisition related expenses, net of tax (2) 1,499 14,524 8,787 Pro forma income from continuing operations 563,059 525,989 567,224 Less: Net income (loss) attributable to continuing noncontrolling interest, as reported 2,800 3,050 (3,516 ) Less: Pro forma net income attributable to noncontrolling interest — 2,799 1,095 Pro forma income from continuing operations attributable to LKQ stockholders (3) $ 560,259 $ 520,140 $ 569,645 (1) 2018 amounts include interest expense for the period from April 9, 2018 through December 31, 2018 recorded on the senior notes issued in connection with our acquisition of Stahlgruber. (2) Includes expenses related to acquisitions closed in the period and excludes expenses for acquisitions not yet completed. (3) Excludes our acquisition of the Czech Republic wholesale business which is classified as discontinued operations. Unaudited pro forma supplemental information is based upon accounting estimates and judgments that we believe are reasonable. The unaudited pro forma supplemental information includes the effect of purchase accounting adjustments, such as the adjustment of inventory acquired to fair value, adjustments to depreciation on acquired property, plant and equipment, adjustments to rent expense for above or below market leases, adjustments to amortization on acquired intangible assets, adjustments to interest expense, and the related tax effects. The pro forma impact of our acquisitions also reflects the elimination of acquisition related expenses, net of tax. Refer to Note 6, "Restructuring and Acquisition Related Expenses," for further information regarding our acquisition related expenses. These pro forma results are not necessarily indicative of what would have occurred if the acquisitions had been in effect for the periods presented or of future results.

Discontinued Operations (Notes)

Discontinued Operations (Notes)	12 Months Ended
	Dec. 31, 2019
Discontinued Operations [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Discontinued Operations Glass Manufacturing Business On March 1, 2017 , LKQ completed the sale of the glass manufacturing business of its PGW subsidiary to a subsidiary of Vitro S.A.B. de C.V. ("Vitro") for a sales price of $301 million , including cash received of $316 million , net of cash disposed of $15 million . Related to this transaction, the remaining portion of the Glass operating segment was combined with our Wholesale – North America operating segment, which is part of our North America reportable segment, in the first quarter of 2017. See Note 16, "Segment and Geographic Information " for further information regarding our segments. Upon execution of the Stock and Asset Purchase Agreement (the "Vitro Agreement") in December 2016, LKQ concluded that the glass manufacturing business met the criteria to be classified as held for sale in LKQ's consolidated financial statements. In connection with the Vitro Agreement, the Company and Vitro entered into a twelve month Transition Services Agreement commencing on the transaction date with two six-month renewal periods, a three-year Purchase and Supply Agreement, and an Intellectual Property Agreement. The Purchase and Supply Agreement expires in the first quarter of 2020, while the Intellectual Property Agreement has a perpetual term; as of December 31, 2019, the Transition Services Agreement had expired. The following table summarizes the operating results of the Company’s discontinued operations related to the sale described above for the years ended December 31, 2019, 2018 and 2017, as presented in Net income (loss) from discontinued operations in the Consolidated Statements of Income (in thousands): Year Ended December 31, 2019 (3) 2018 2017 Revenue $ — $ — $ 111,130 Cost of goods sold — — 100,084 Selling, general and administrative expenses 1,626 — 8,369 Operating (loss) income (1,626 ) — 2,677 Total other expense, net (1) — — 1,204 (Loss) income from discontinued operations before taxes (1,626 ) — 3,881 (Benefit) provision for income taxes (1,572 ) — 3,598 Equity in loss of unconsolidated subsidiaries — — (534 ) Loss from discontinued operations, net of tax (54 ) — (251 ) Loss on sale of discontinued operations, net of tax (2) — (4,397 ) (6,495 ) Net loss from discontinued operations $ (54 ) $ (4,397 ) $ (6,746 ) (1) The Company elected to allocate interest expense to discontinued operations based on the expected debt to be repaid. Under this approach, allocated interest from January 1, 2017 through the date of sale was $2 million . The other expenses, net were foreign currency gains and losses. (2) In the first quarter of 2017, upon closing of the sale and write-off of the net assets of the glass manufacturing business, we recorded a pre-tax loss on sale of $9 million , and a $4 million current tax benefit. The incremental loss primarily reflects a $6 million payable for intercompany sales from the glass manufacturing business to the aftermarket automotive glass distribution business incurred prior to closing, which was paid by LKQ during the second quarter of 2017, and capital expenditures in 2017 that were not reimbursed by the buyer. During the fourth quarter of 2017, we recorded an additional loss on sale of $2 million as a result of post sale net working capital adjustments. During the fourth quarter of 2018, we recorded a final current tax expense adjustment of $4 million to the loss on sale as a result of the completion of the tax return reporting the 2017 transaction. The adjustment was primarily attributable to a valuation allowance recognized on the carryforward of a capital loss arising from the sale, the tax benefit of which is not certain to be realized during the carryforward period. (3) During the fourth quarter of 2019, we recorded a reserve related to a pre-disposition matter and the related deferred tax benefit, and we settled certain tax matters with Vitro, which are reflected in the benefit for income taxes. The glass manufacturing business had $4 million of operating cash outflows, $4 million of investing cash outflows mainly consisting of capital expenditures, and $15 million of financing cash inflows made up of parent financing for the period from January 1, 2017 through March 1, 2017. Pursuant to the Purchase and Supply Agreement , our aftermarket automotive glass distribution business agreed to source various products from Vitro's glass manufacturing business annually for a three-year period beginning on March 1, 2017. Between January 1, 2017 and the sale date of March 1, 2017, intercompany sales between the glass manufacturing business and the continuing aftermarket automotive glass distribution business of PGW, which were eliminated in consolidation, were $8 million . All purchases from Vitro, including those outside of the Purchase and Supply Agreement, for the years ended December 31, 2019, 2018 and 2017, were $30 million , $24 million and $42 million , respectively. Czech Republic As described in Note 2, "Business Combinations," we classified the acquired Stahlgruber Czech Republic wholesale business as discontinued operations. We expect to divest the business within the first half of 2020, and thus, the net assets are reflected on the Consolidated Balance Sheets at the lower of fair value less cost to sell or carrying value. As of December 31, 2019 , the assets held for sale, liabilities held for sale, and noncontrolling interest are recorded within Prepaid expenses and other current assets, Other current liabilities, and Noncontrolling interest, respectively, on the Consolidated Balance Sheets. As of the acquisition date, we acquired $5 million of cash, assumed $6 million of existing debt and settled $6 million of pre-existing balances. During the year ended December 31, 2019, we recorded $2 million of net income from discontinued operations related to the business, of which $1 million was attributable to the noncontrolling interest. Fair value was based on the estimated selling price, the inputs of which included projected market multiples and any reasonable offers. Due to the uncertainties in the estimation process, it is possible that actual results could differ from the estimates used in the Company's analysis. The inputs utilized in the fair value estimate are classified as Level 3 within the fair value hierarchy. The fair value of the net assets was measured on a non-recurring basis as of December 31, 2019 .

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment are recorded at cost less accumulated depreciation. Expenditures for major additions and improvements that extend the useful life of the related asset are capitalized. As property, plant and equipment are sold or retired, the applicable cost and accumulated depreciation are removed from the accounts and any resulting gain or loss thereon is recognized. Construction in progress consists primarily of building and land improvements at our existing facilities. Depreciation is calculated using the straight-line method over the estimated useful lives or, in the case of leasehold improvements, the term of the related lease and reasonably assured renewal periods, if shorter. Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162 We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold in the Consolidated Statements of Income. We report depreciation expense resulting from restructuring programs in Restructuring and acquisition related expenses. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $174 million , $157 million , and $129 million , respectively.
Inventory	Inventories We classify our inventory into the following categories: (i) aftermarket and refurbished products, (ii) salvage and remanufactured products, and (iii) manufactured products. An aftermarket product is a new vehicle product manufactured by a company other than the original equipment manufacturer. For all of our aftermarket products, excluding our aftermarket automotive glass products, cost is established based on the average price we pay for parts; for our aftermarket automotive glass products inventory, cost is established using the first-in first-out method. Inventory cost for all of our aftermarket products includes expenses incurred for freight in and overhead costs; for items purchased from foreign companies, import fees and duties and transportation insurance are also included. Refurbished products are parts that require cosmetic repairs, such as wheels, bumper covers and lights; LKQ will apply new parts, products or materials to these parts in order to produce the finished product. Refurbished inventory cost is based upon the average price we pay for cores. The cost of our refurbished inventory also includes expenses incurred for freight in, labor and other overhead costs. A salvage product is a recycled vehicle part suitable for sale as a replacement part. Cost is established based upon the price we pay for a vehicle, including auction, storage and towing fees, as well as expenditures for buying and dismantling the vehicle. Inventory carrying value is determined using the average cost to sales percentage at each of our facilities and applying that percentage to the facility's inventory at expected selling prices, the assessment of which incorporates the sales probability based on a part's number of days in stock and historical demand. The average cost to sales percentage is derived from each facility's historical profitability for salvage vehicles. Remanufactured products are used parts that have been inspected, rebuilt, or reconditioned to restore functionality and performance, such as remanufactured engines and transmissions. Remanufactured inventory cost is based upon the price paid for cores, which are recycled automotive parts that are not suitable for sale as a replacement part without further processing, and also includes expenses incurred for freight in, direct manufacturing costs and other overhead costs. A manufactured product is a new vehicle product. Manufactured product inventory can be a raw material, work-in-process or finished good. Cost is established using the first-in first-out method. For all inventory, carrying value is recorded at the lower of cost or net realizable value. Net realizable value can be influenced by current anticipated demand. If actual demand is lower than our estimates, additional reductions to inventory carrying value would be necessary in the period such determination is made. Inventories consist of the following (in thousands): December 31, 2019 2018 Aftermarket and refurbished products $ 2,297,895 $ 2,309,458 Salvage and remanufactured products 447,908 503,199 Manufactured products 26,974 23,418 Total inventories $ 2,772,777 $ 2,836,075 Aftermarket and refurbished products and salvage and remanufactured products are primarily composed of finished goods. As of December 31, 2019 , manufactured products inventory was composed of $17 million of raw materials, $3 million of work in process, and $6 million of finished goods. As of December 31, 2018 , manufactured products inventory was composed of $17 million of raw materials, $2 million of work in process, and $4 million of finished goods.
Receivable [Policy Text Block]	Receivables and Allowance for Doubtful Accounts In the normal course of business, we extend credit to customers after a review of each customer's credit history. We recorded a reserve for uncollectible accounts of approximately $53 million and $57 million at December 31, 2019 and 2018 , respectively. The reserve is based upon the aging of the accounts receivable, our assessment of the collectability of specific customer accounts and historical experience. Receivables are written off once collection efforts have been exhausted. Recoveries of receivables previously written off are recorded when received.
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Principles of Consolidation The accompanying consolidated financial statements include the accounts of LKQ Corporation and its subsidiaries. All intercompany transactions and accounts have been eliminated. Use of Estimates In preparing our financial statements in conformity with accounting principles generally accepted in the United States of America, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Revenue Recognition See Note 5, "Revenue Recognition" for our accounting policies related to revenue. Cost of Goods Sold Our cost of goods sold includes: the price we pay for inventory, net of vendor discounts, rebates or other incentives; inbound freight and other transportation costs to bring inventory into our facilities; and overhead costs related to purchasing, warehousing and transporting our products from our distribution warehouses to our selling locations. For our salvage, remanufactured, and refurbished products, our cost of goods sold also includes direct and indirect labor, equipment costs, depreciation, and other overhead to transform inventory into finished products suitable for sale. Cost of goods sold also includes expenses for our service-type warranties and for our assurance-type warranty programs. See Note 5, "Revenue Recognition" for additional information related to our warranty programs. Selling, General and Administrative Expenses Selling, general and administrative expenses include: personnel costs for employees in selling, general and administrative functions; costs to operate our branch locations, corporate offices and back office support centers; costs to transport our products from our facilities to our customers; and other selling, general and administrative expenses, such as professional fees, supplies, and advertising expenses. The costs included in selling, general and administrative expenses do not relate to inventory processing or conversion activities, and, as such, are classified below the gross margin line in our Consolidated Statements of Income. Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents include cash on hand, operating accounts, and deposits readily convertible to known amounts of cash. Restricted cash includes cash for which the Company's ability to withdraw funds at any time is contractually limited. As of both December 31, 2019 and 2018, we had $5 million of restricted cash that is recorded in Other noncurrent assets on the Consolidated Balance Sheets. Receivables and Allowance for Doubtful Accounts In the normal course of business, we extend credit to customers after a review of each customer's credit history. We recorded a reserve for uncollectible accounts of approximately $53 million and $57 million at December 31, 2019 and 2018 , respectively. The reserve is based upon the aging of the accounts receivable, our assessment of the collectability of specific customer accounts and historical experience. Receivables are written off once collection efforts have been exhausted. Recoveries of receivables previously written off are recorded when received. Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentration of credit risk consist primarily of cash and cash equivalents and accounts receivable. We control our exposure to credit risk associated with these instruments by (i) placing our cash and cash equivalents with several major financial institutions; (ii) holding high-quality financial instruments; and (iii) maintaining strict policies over credit extension that include credit evaluations, credit limits and monitoring procedures. In addition, our overall credit risk with respect to accounts receivable is limited to some extent because our customer base is composed of a large number of geographically diverse customers. Inventories We classify our inventory into the following categories: (i) aftermarket and refurbished products, (ii) salvage and remanufactured products, and (iii) manufactured products. An aftermarket product is a new vehicle product manufactured by a company other than the original equipment manufacturer. For all of our aftermarket products, excluding our aftermarket automotive glass products, cost is established based on the average price we pay for parts; for our aftermarket automotive glass products inventory, cost is established using the first-in first-out method. Inventory cost for all of our aftermarket products includes expenses incurred for freight in and overhead costs; for items purchased from foreign companies, import fees and duties and transportation insurance are also included. Refurbished products are parts that require cosmetic repairs, such as wheels, bumper covers and lights; LKQ will apply new parts, products or materials to these parts in order to produce the finished product. Refurbished inventory cost is based upon the average price we pay for cores. The cost of our refurbished inventory also includes expenses incurred for freight in, labor and other overhead costs. A salvage product is a recycled vehicle part suitable for sale as a replacement part. Cost is established based upon the price we pay for a vehicle, including auction, storage and towing fees, as well as expenditures for buying and dismantling the vehicle. Inventory carrying value is determined using the average cost to sales percentage at each of our facilities and applying that percentage to the facility's inventory at expected selling prices, the assessment of which incorporates the sales probability based on a part's number of days in stock and historical demand. The average cost to sales percentage is derived from each facility's historical profitability for salvage vehicles. Remanufactured products are used parts that have been inspected, rebuilt, or reconditioned to restore functionality and performance, such as remanufactured engines and transmissions. Remanufactured inventory cost is based upon the price paid for cores, which are recycled automotive parts that are not suitable for sale as a replacement part without further processing, and also includes expenses incurred for freight in, direct manufacturing costs and other overhead costs. A manufactured product is a new vehicle product. Manufactured product inventory can be a raw material, work-in-process or finished good. Cost is established using the first-in first-out method. For all inventory, carrying value is recorded at the lower of cost or net realizable value. Net realizable value can be influenced by current anticipated demand. If actual demand is lower than our estimates, additional reductions to inventory carrying value would be necessary in the period such determination is made. Inventories consist of the following (in thousands): December 31, 2019 2018 Aftermarket and refurbished products $ 2,297,895 $ 2,309,458 Salvage and remanufactured products 447,908 503,199 Manufactured products 26,974 23,418 Total inventories $ 2,772,777 $ 2,836,075 Aftermarket and refurbished products and salvage and remanufactured products are primarily composed of finished goods. As of December 31, 2019 , manufactured products inventory was composed of $17 million of raw materials, $3 million of work in process, and $6 million of finished goods. As of December 31, 2018 , manufactured products inventory was composed of $17 million of raw materials, $2 million of work in process, and $4 million of finished goods. Property, Plant and Equipment Property, plant and equipment are recorded at cost less accumulated depreciation. Expenditures for major additions and improvements that extend the useful life of the related asset are capitalized. As property, plant and equipment are sold or retired, the applicable cost and accumulated depreciation are removed from the accounts and any resulting gain or loss thereon is recognized. Construction in progress consists primarily of building and land improvements at our existing facilities. Depreciation is calculated using the straight-line method over the estimated useful lives or, in the case of leasehold improvements, the term of the related lease and reasonably assured renewal periods, if shorter. Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162 We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold in the Consolidated Statements of Income. We report depreciation expense resulting from restructuring programs in Restructuring and acquisition related expenses. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $174 million , $157 million , and $129 million , respectively. Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 ) The components of other intangibles, net are as follows (in thousands): December 31, 2019 December 31, 2018 Intangible assets subject to amortization $ 769,038 $ 847,452 Indefinite-lived intangible assets Trademarks 81,300 81,300 Total $ 850,338 $ 928,752 The components of intangible assets subject to amortization are as follows (in thousands): December 31, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 488,945 $ (119,957 ) $ 368,988 $ 496,166 $ (94,451 ) $ 401,715 Customer and supplier relationships 580,052 (321,650 ) 258,402 593,517 (247,464 ) 346,053 Software and other technology related assets 248,941 (108,979 ) 139,962 176,118 (79,283 ) 96,835 Covenants not to compete 13,435 (11,749 ) 1,686 13,344 (10,495 ) 2,849 Total $ 1,331,373 $ (562,335 ) $ 769,038 $ 1,279,145 $ (431,693 ) $ 847,452 The components of intangible assets acquired as part of our acquisitions in 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Trade names and trademarks $ 173,946 $ 8,870 $ 182,816 Customer and supplier relationships 77,980 20,779 98,759 Software and other technology related assets 33,329 376 33,705 Covenants not to compete — — — Total $ 285,255 $ 30,025 $ 315,280 (1) The amounts recorded during the year ended December 31, 2018 exclude amounts related to our 2017 acquisitions, including a $5 million adjustment to increase other intangibles related to our 2017 acquisition of Warn. The weighted-average amortization periods for our intangible assets acquired during the years ended December 31, 2018 and 2017 are as follows (in years): Year Ended Year Ended December 31, 2018 December 31, 2017 Stahlgruber Other Acquisitions Total All Acquisitions Trade names and trademarks 18.0 10.0 17.6 11.2 Customer and supplier relationships 3.0 7.9 4.0 18.6 Software and other technology related assets 5.2 6.5 5.2 11.1 Covenants not to compete — — — 4.4 Total acquired finite-lived intangible assets 12.4 8.5 12.0 16.5 Our estimated useful lives for our finite-lived intangible assets are as follows: Method of Amortization Useful Life Trade names and trademarks Straight-line 4-30 years Customer and supplier relationships Accelerated 3-20 years Software and other technology related assets Straight-line 3-15 years Covenants not to compete Straight-line 2-5 years Amortization expense for intangibles was $140 million , $137 million , and $102 million during the years ended December 31, 2019 , 2018 , and 2017 , respectively. Estimated amortization expense for each of the five years in the period ending December 31, 2024 is $120 million , $93 million , $80 million , $70 million and $64 million , respectively. Net Assets Held for Sale During the year ended December 31, 2019, we committed to plans to sell certain businesses in our North America and Europe segments. As a result, these businesses were classified as net assets held for sale and were required to be adjusted to the lower of fair value less cost to sell or carrying value, resulting in impairment charges totaling $47 million for the year ended December 31, 2019 (presented in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income). In the third quarter of 2019, we completed the sales of two of these businesses, our aviation business in North America and a wholesale business in Bulgaria. The disposed businesses were immaterial, generating annualized revenue of approximately $55 million prior to the divestiture. Excluding the Stahlgruber Czech Republic wholesale business discussed in Note 3, "Discontinued Operations ," as of December 31, 2019, there were $19 million of assets held for sale, including $5 million of goodwill that was reclassified as held for sale related to our Europe segment, and $9 million of liabilities held for sale, which were recorded within Prepaid expenses and other current assets and Other current liabilities, respectively, on the Consolidated Balance Sheets. We expect the remaining assets held for sale to be disposed of during the next twelve months. The assets held for sale generated annualized revenue of $87 million during the year ended December 31, 2019 . We are required to record net assets of our held for sale businesses at the lower of fair value less cost to sell or carrying value. Fair values were based on projected discounted cash flows and/or estimated selling prices. Management's assumptions for our discounted cash flow analysis of the businesses were based on projected revenues and profits, tax rates, capital expenditures, working capital requirements and discount rates. For businesses for which we utilized estimated selling prices to calculate the fair value, the inputs to our estimates included projected market multiples and any reasonable offers. Due to uncertainties in the estimation process, it is possible that actual results could differ from the estimates used in our analysis. The inputs utilized in the fair value estimates are classified as Level 3 within the fair value hierarchy. The fair values of the net assets were measured on a non-recurring basis as of December 31, 2019 . Impairment of Long-Lived Assets Long-lived assets are reviewed for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. If such review indicates that the carrying amount of long-lived assets is not recoverable, the carrying amount of such assets is reduced to fair value. Other than the impairment charges recorded upon the classification of certain businesses in our North America and Europe segments as held for sale discussed in the "Net Assets Held for Sale" section above, there were no material adjustments to the carrying value of long-lived assets during the years ended December 31, 2019 , 2018 or 2017 . Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $139 million and $179 million as of December 31, 2019 and December 31, 2018 , respectively. Europe Segment Our investment in unconsolidated subsidiaries in Europe was $122 million and $163 million as of December 31, 2019 and December 31, 2018 , respectively. We recorded equity in losses of $33 million and $65 million during the years ended December 31, 2019 and December 31, 2018 , respectively, and equity in earnings of $6 million during the year ended December 31, 2017 related to our investments in unconsolidated subsidiaries in our Europe segment, mainly related to our investment in Mekonomen. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen for an aggregate purchase price of $181 million . In October 2018, we acquired an additional $48 million of equity in Mekonomen at a discounted share price as part of its rights issue, increasing our equity interest to 26.6% . We are accounting for our interest in Mekonomen using the equity method of accounting, as our investment gives us the ability to exercise significant influence, but not control, over the investee. As of December 31, 2019, our share of the book value of Mekonomen's net assets exceeded the book value of our investment in Mekonomen by $5 million ; this difference is primarily related to Mekonomen's Accumulated Other Comprehensive Income balance as of our acquisition date in 2016. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. During the years ended December 31, 2019 and 2018, we recognized other-than-temporary impairment charges of $40 million and $71 million , respectively, which represented the difference in the carrying value and the fair value of our investment in Mekonomen. The fair value of our investment in Mekonomen was determined using the Mekonomen share prices as of the dates of our impairment tests. The impairment charges are recorded in Equity in (losses) earnings of unconsolidated subsidiaries in our Consolidated Statements of Income. In May 2018, we received a cash dividend of $8 million (SEK 67 million ) related to our investment in Mekonomen. Mekonomen announced in February 2019 that the Mekonomen Board of Directors proposed no dividend payment in 2019. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at December 31, 2019 was $149 million (using the Mekonomen share price of SEK 93 as of December 31, 2019 ) compared to a carrying value of $111 million . In 2018, we participated in a rights issue with preferential rights for Mekonomen's existing shareholders, who were given the right to subscribe for four new Mekonomen shares per seven existing owned shares at a discounted share price. The rights issue represented a derivative instrument related to our right to acquire Mekonomen shares at a discount. We measured the derivative instrument at fair value, and we recorded a derivative loss of $5 million in Interest income and other income, net in the Consolidated Statements of Income in October 2018 upon the settlement of the derivative instrument. North America Segment Our investment in unconsolidated subsidiaries in the North America segment was $18 million and $16 million as of December 31, 2019 and December 31, 2018 , respectively. The equity in earnings for the North America equity investments was $1 million for the year ended December 31, 2019 and an immaterial amount for the year ended December 31, 2018 ; we did not have any equity in earnings in the North America segment in 2017. Warranty Reserve Some of our salvage mechanical products are sold with a standard six month warranty against defects. Additionally, some of our remanufactured engines are sold with a standard three year warranty against defects. We also provide a limited lifetime warranty for certain of our aftermarket products. These assurance-type warranties are not considered a separate performance obligation, and thus no transaction price is allocated to them. We record the warranty costs in Cost of goods sold in our Consolidated Statements of Income. Our warranty reserve is calculated using historical claim information to project future warranty claims activity and is recorded within Other accrued expenses and Other noncurrent liabilities on our Consolidated Balance Sheets based on the expected timing of the related payments. The changes in the warranty reserve are as follows (in thousands): Balance as of January 1, 2018 $ 23,151 Warranty expense 43,682 Warranty claims (43,571 ) Balance as of December 31, 2018 23,262 Warranty expense 58,253 Warranty claims (56,074 ) Balance as of December 31, 2019 $ 25,441 Self-Insurance Reserves We self-insure a portion of employee medical benefits under the terms of our employee health insurance program. We purchase certain stop-loss insurance to limit our liability exposure. We also self-insure a portion of our property and casualty risk, which includes automobile liability, general liability, directors and officers liability, workers' compensation, and property coverage, under deductible insurance programs. The insurance premium costs are expensed over the contract periods. A reserve for liabilities associated with these losses is established for claims filed and claims incurred but not yet reported based upon our estimate of ultimate cost, which is calculated using analysis of historical data. We monitor new claims and claim development as well as trends related to the claims incurred but not reported in order to assess the adequacy of our insurance reserves. Total self-insurance reserves were $109 million and $105 million , of which $54 million and $52 million was classified as current, as of December 31, 2019 and 2018 , respectively, and are classified as Other accrued expenses on the Consolidated Balance Sheets. The remaining balances of self-insurance reserves are classified as Other noncurrent liabilities, which reflects management's estimates of when claims will be paid. We had outstanding letters of credit of $69 million and $65 million at December 31, 2019 and 2018 , respectively, to guarantee self-insurance claims payments. While we do not expect the amounts ultimately paid to differ significantly from our estimates, our insurance reserves and corresponding expenses could be affected if future claims experience differs significantly from historical trends and assumptions. Litigation and Related Contingencies We have certain contingencies resulting from litigation, claims and other commitments and are subject to a variety of environmental and pollution control laws and regulations incident to the ordinary course of business. We currently expect that the resolution of such contingencies will not materially affect our financial position, results of operations or cash flows. Stockholders' Equity Treasury Stock On October 25, 2018, our Board of Directors authorized a stock repurchase program under which we were authorized to purchase up to $500 million of our common stock from time to time through October 25, 2021. Repurchases under the program may be made in the open market or in privately negotiated transactions, with the amount and timing of repurchases depending on market conditions and corporate needs. The repurchase program does not obligate us to acquire any specific number of shares and may be suspended or discontinued at any time. Delaware law imposes restrictions on stock repurchases. On October 25, 2019, our Board of Directors authorized an increase to our existing stock repurchase program under which the Company may purchase up to an additional $500 million of our common stock from time to time through October 25, 2022; this extended date also applies to the original repurchase program. With the increase, the Board of Directors has authorized a total of $1.0 billion of common stock repurchases. During the year ended December 31, 2019 , we repurchased 10.9 million shares of common stock for an aggregate price of $292 million . During 2018, we repurchased 2.3 million shares of common stock for an aggregate price of $60 million . As of December 31, 2019 , there was $648 million of remaining capacity under our repurchase program. Repurchased shares are accounted for as treasury stock using the cost method. Noncontrolling Interest In July 2019, we purchased substantially all of the noncontrolling interest of a subsidiary acquired in connection with the Stahlgruber acquisition for a purchase price of $19 million , which included the issuance of $14 million of notes payable. This purchase resulted in a net decrease to Noncontrolling interest of $10 million and a decrease to Additional paid-in capital of $9 million in our consolidated financial statements as of December 31, 2019 . In December 2019, we modified the shares of a noncontrolling interest of a subsidiary acquired in connection with the Stahlgruber acquisition and issued new redeemable shares to the minority shareholder. The new redeemable shares contain (i) a put option for all noncontrolling interest shares at a fixed price of $24 million ( €21 million ) for the minority shareholder exercisable in the fourth quarter of 2023, (ii) a call option for all noncontrolling interest shares at a fixed price of $26 million ( €23 million ) for the Company exercisable beginning in the first quarter of 2026 through the end of the fourth quarter of 2027, and (iii) a guaranteed dividend to be paid quarterly to the minority shareholder through the fourth quarter of 2023. The new redeemable shares do not provide the minority shareholder with rights to participate in the profits and losses of the subsidiary prior to the exercise date of the put option. As the put option is outside the control of the Company, we recorded a $24 million Redeemable noncontrolling interest at the put option's redemption value outside of permanent equity on our Consolidated Balance Sheets. This transaction also resulted in a decrease to Additional paid-in capital of $18 million , a decrease to Noncontrolling interest of $12 million , and a $7 million dividend payable ( $2 million recorded in Other current liabilities and $5 million in Other noncurrent liabilities) in our consolidated financial statements as of December 31, 2019 . The redeemable noncontrolling interest and dividend payable represent noncash financing activities in our Consolidated Statements of Cash Flows. Income Taxes Current income taxes are provided on income reported for financial reporting purposes, adjusted for transactions that do not enter into the computation of income taxes payable in the same year. Deferred income taxes have been provided to show the effect of temporary differences between the tax bases of assets and liabilities and their reported amounts in the financial statements. A valuation allowance is provided for deferred tax assets if it is more likely than not that these items will either expire before we are able to realize their benefit or that future deductibility is uncertain. Provision is made for taxes on undistributed earnings of foreign subsidiaries and related companies to the extent that such earnings are not deemed to be permanently invested. We recognize the benefits of uncertain tax positions taken or expected to be taken in tax returns in the provision for income taxes only for those positions that are more likely than not to be realized. We follow a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. We consider many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. Our policy is to include interest and penalties associated with income tax obligations in income tax expense. During 2017, new tax legislation was signed into law making significant changes to the Internal Revenue Code. See Note 15, "Income Taxes" for further information regarding the new tax law. Rental Expense We recognize rental expense on a straight-line basis over the respective lease terms, including reasonably assured renewal periods, for all of our operating leases. Foreign Currency Translation For most of our foreign operations, the local currency is the functional currency. Assets and liabilities are translated into U.S. dollars at the period-ending exchange rate. Statements of Income amounts are translated to U.S. dollars using monthly average exchange rates during the period. Translation gains and losses are reported as a component of Accumulated other comprehensive income (loss) in stockholders' equity. Recent Accounting Pronouncements Adoption of New Lease Standard In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2016-02, "Leases" ("ASU 2016-02"), which represents the FASB Accounting Standards Codification Topic 842 ("ASC 842"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the Consolidated Balance Sheets and disclosing key information about leasing arrangements. The main difference between the prior standard and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under the prior standard. We adopted the standard in the first quarter of 2019 using the modified retrospective approach and elected the transition package of practical expedients permitted within the new standard, which, among other things, allows us to carryforward the historical lease classification. For leases wi
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adoption of New Lease Standard In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2016-02, "Leases" ("ASU 2016-02"), which represents the FASB Accounting Standards Codification Topic 842 ("ASC 842"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the Consolidated Balance Sheets and disclosing key information about leasing arrangements. The main difference between the prior standard and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under the prior standard. We adopted the standard in the first quarter of 2019 using the modified retrospective approach and elected the transition package of practical expedients permitted within the new standard, which, among other things, allows us to carryforward the historical lease classification. For leases with a term of 12 months or less, we elected the short-term lease exemption, which allowed us to not recognize right-of-use assets or lease liabilities for qualifying leases existing at transition and new leases we may enter into in the future. Additionally, we adopted the practical expedient to combine lease and non-lease components. As of January 1, 2019, we recorded both an operating lease asset and operating lease liability of $1.3 billion . The preexisting deferred rent liability balances from the historical straight-line treatment of operating leases was reclassified as a reduction of the lease asset upon adoption. The adoption of the standard did not materially affect our Consolidated Statements of Income or Statements of Cash Flows as operating lease payments will still be an operating cash outflow and capital lease payments will still be a financing cash outflow. The new standard did not have a material impact on our liquidity. The standard will have no impact on our debt covenant compliance under our current agreements as the covenant calculations are based on the prior lease accounting rules. Other Recently Adopted Accounting Pronouncements During the first quarter of 2019, we adopted ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities" ("ASU 2017-12"), which amends the hedge accounting recognition and presentation requirements in ASC 815 ("Derivatives and Hedging"). ASU 2017-12 significantly alters the hedge accounting model by making it easier for an entity to achieve and maintain hedge accounting and provides for accounting that better reflects an entity's risk management activities. We adopted the provisions of ASU 2017-12 by applying a modified retrospective approach to existing hedging relationships as of the adoption date. The adoption of ASU 2017-12 did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-13, "Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurement" ("ASU 2018-13"), which removes, modifies, and adds certain disclosure requirements in ASC 820. ASU 2018-13 is effective for fiscal years and interim periods beginning after December 15, 2019; early adoption is permitted. We are in the process of evaluating the impact of this standard on our disclosures but do not currently believe that it will have a material impact. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"), and in November 2018 issued a subsequent amendment, ASU 2018-19, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses" ("ASU 2018-19"). ASU 2016-13 significantly changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. ASU 2016-13 will replace today’s “incurred loss” approach with an “expected loss” model for instruments measured at amortized cost. ASU 2018-19 will affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope of this amendment that represent the contractual right to receive cash. ASU 2016-13 and ASU 2018-19 should be applied on either a prospective transition or modified-retrospective approach depending on the subtopic. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods therein. We do not anticipate the adoption of this accounting standard will have a material impact on our consolidated financial statements.

Revenue Recognition Revenue Rec

Revenue Recognition Revenue Reconition (Notes)	12 Months Ended
	Dec. 31, 2019
Revenue Recognition [Abstract]
Revenue From Contract With Customer	Revenue Recognition The majority of our revenue is derived from the sale of vehicle parts. We recognize revenue when the products are shipped to, delivered to or picked up by customers, which is the point when title has transferred and risk of ownership has passed. Sources of Revenue We report our revenue in two categories: (i) parts and services and (ii) other. The following table sets forth our revenue by category, with our parts and services revenue further disaggregated by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 North America $ 4,600,903 $ 4,558,220 $ 4,278,531 Europe 5,817,547 5,202,231 3,628,906 Specialty 1,459,396 1,472,956 1,301,197 Parts and services 11,877,846 11,233,407 9,208,634 Other 628,263 643,267 528,275 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909 Parts and Services Our parts revenue is generated from the sale of vehicle products including replacement parts, components and systems used in the repair and maintenance of vehicles and specialty products and accessories to improve the performance, functionality and appearance of vehicles. Services revenue includes (i) additional services that are generally billed concurrently with the related product sales, such as the sale of service-type warranties, (ii) fees for admission to our self service yards, and (iii) diagnostic and repair services. In North America, our vehicle replacement products include sheet metal collision parts such as doors, hoods, and fenders; bumper covers; head and tail lamps; automotive glass products such as windshields; mirrors and grilles; wheels; and large mechanical items such as engines and transmissions. In Europe, our products include a wide variety of small mechanical products such as brake pads, discs and sensors; clutches; electrical products such as spark plugs and batteries; steering and suspension products; filters; and oil and automotive fluids. In our Specialty operations, we serve six product segments: truck and off-road; speed and performance; RV; towing; wheels, tires and performance handling; and miscellaneous accessories. Our service-type warranties typically have service periods ranging from 6 months to 36 months . Under FASB Accounting Standards Codification Topic ASC 606 ("ASC 606"), proceeds from these service-type warranties are deferred at contract inception and amortized on a straight-line basis to revenue over the contract period. The changes in deferred service-type warranty revenue are as follows (in thousands): Balance as of January 1, 2018 $ 19,465 Additional warranty revenue deferred 38,736 Warranty revenue recognized (34,195 ) Balance as of December 31, 2018 24,006 Additional warranty revenue deferred 43,381 Warranty revenue recognized (40,320 ) Balance as of December 31, 2019 $ 27,067 Other Revenue Revenue from other sources includes sales of scrap and precious metals (platinum, palladium, and rhodium), bulk sales to mechanical manufacturers (including cores) and sales of aluminum ingots and sows from our furnace operations. We derive scrap metal and other precious metals from several sources, including vehicles that have been used in both our wholesale and self service recycling operations and from OEMs and other entities that contract with us for secure disposal of "crush only" vehicles. The sale of hulks in our wholesale and self service recycling operations represents one performance obligation, and revenue is recognized based on a price per weight when the customer (processor) collects the scrap. Some adjustments may occur when the customer weighs the scrap at their location, and revenue is adjusted accordingly. Revenue by Geographic Area See Note 16, "Segment and Geographic Information" for information related to our revenue by geographic region. Variable Consideration The amount of revenue ultimately received from the customer can vary due to variable consideration including returns, discounts, rebates, refunds, credits, price concessions, incentives, performance bonuses, or other similar items. Under ASC 606 we are required to select the “expected value method” or the “most likely amount” method in order to estimate variable consideration. We utilize both methods in practice depending on the type of variable consideration, with contemplation of any expected reversals in revenue. We recorded a refund liability and return asset for expected returns of $97 million and $52 million , respectively, as of December 31, 2019 , and $105 million and $56 million , respectively, as of December 31, 2018 . The refund liability is presented separately on the balance sheet within current liabilities while the return asset is presented within Prepaid expenses and other current assets. Other types of variable consideration consist primarily of discounts, volume rebates, and other customer sales incentives which are recorded in Receivables, net on the Consolidated Balance Sheets. We recorded a reserve for our variable consideration of $108 million and $103 million as of December 31, 2019 and December 31, 2018 , respectively. While other customer incentive programs exist, we characterize them as material rights in the context of our sales transactions. We consider these programs to be immaterial to our consolidated financial statements. Contract Costs Under ASC 340, "Other Assets and Deferred Costs," we have elected to recognize incremental costs of obtaining a contract (commissions earned by our sales representatives on product sales) as an expense when incurred, as we believe the amortization period of the asset would be one year or less due to the short-term nature of our contracts. Sales Taxes We present taxes assessed by governmental authorities collected from customers on a net basis. Therefore, the taxes are excluded from revenue in our Consolidated Statements of Income and are shown as a current liability on our Consolidated Balance Sheets until remitted.

Restructuring and Acquisition R

Restructuring and Acquisition Related Expenses (Notes)	12 Months Ended
	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring and Acquisition Related Expenses	Restructuring and Acquisition Related Expenses Acquisition Related Expenses Acquisition related expenses, which include external costs such as legal, accounting and advisory fees, were $2 million for the year ended December 31, 2019 . Acquisition related expenses for the year ended December 31, 2018 were $18 million , which included external costs primarily related to our May 2018 acquisition of Stahlgruber. Acquisition related expenses totaled $15 million for the year ended December 31, 2017 . Acquisition related expenses for 2017 included $5 million of costs for our acquisition of Andrew Page, primarily related to legal and other professional fees associated with the CMA review. The remaining acquisition related costs for the year ended December 31, 2017 consisted of external costs for (i) completed acquisitions, (ii) pending acquisitions as of December 31, 2017 , including $4 million related to Stahlgruber, and (iii) potential acquisitions that were terminated. 2019 Global Restructuring Program In the second quarter of 2019, we began implementing a cost reduction initiative, covering all three of our reportable segments, designed to eliminate underperforming assets and cost inefficiencies. We have incurred and expect to incur costs for inventory write-downs, employee severance and other expenditures related to employee terminations; lease exit costs, such as lease termination fees, accelerated amortization of operating lease assets and impairment of operating lease assets; other costs related to facility exits, such as moving expenses to relocate inventory and equipment; and accelerated depreciation of fixed assets to be disposed earlier than the end of the previously estimated useful lives. During the year ended December 31, 2019 , we incurred $37 million of restructuring expenses primarily related to inventory write-downs, employee-related costs and facility exit costs. Of these expenses, $17 million , primarily related to branch consolidation and brand rationalization within our Andrew Page operations, was recorded within Cost of goods sold in the Consolidated Statement of Income during the year ended December 31, 2019 , and $20 million was recorded within Restructuring and acquisition related expenses. We currently expect to incur additional expenses of between $5 million and $10 million through the end of 2020 to complete the program. Acquisition Integration Plans During the year ended December 31, 2019 , we incurred $18 million of restructuring expenses primarily related to our acquisition integration efforts in our Europe segment. These expenses included $14 million related to the integration of our acquisition of Andrew Page, including $4 million within Cost of goods sold in the Consolidated Statement of Income. During the year ended December 31, 2018 , we incurred $14 million of restructuring expenses. Expenses incurred during the year ended December 31, 2018 primarily consisted of $10 million related to the integration of our acquisition of Andrew Page and $3 million related to our Specialty segment. These integration activities included the closure of duplicate facilities and termination of employees. During the year ended December 31, 2017 , we incurred $5 million of restructuring expenses. Expenses incurred during the year ended December 31, 2017 were primarily a result of our ongoing integration activities in our North America and Specialty segments. Expenses incurred were primarily related to facility closure and the merger of existing facilities into larger distribution centers. We expect to incur additional expenses related to the integration of certain of our acquisitions into our existing operations in 2020. These integration activities are expected to include the closure of duplicate facilities, rationalization of personnel in connection with the consolidation of overlapping facilities with our existing business, and moving expenses. Future expenses to complete these integration plans are expected to be less than $5 million . 1 LKQ Europe Program In September 2019, we announced a multi-year program called "1 LKQ Europe," which is intended to create structural centralization and standardization of key functions to facilitate the operation of the Europe segment as a single business. Under the 1 LKQ Europe program, we will reorganize our non-customer-facing teams and support systems through various projects including the implementation of a common ERP platform, rationalization of our product portfolio, and creation of a Europe headquarters office and central back office. We currently expect to incur between $45 million and $55 million in personnel and inventory related restructuring charges through 2024 as a result of executing the 1 LKQ Europe program. In future periods, we may identify additional initiatives and projects under the 1 LKQ Europe program that may result in additional restructuring expense, although we are currently unable to estimate the range of charges for such potential future initiatives and projects.

Equity Incentive Plans

Equity Incentive Plans	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Equity Incentive Plans	Stock-Based Compensation In order to attract and retain employees, non-employee directors, consultants, and other persons associated with us, we grant equity-based awards under the LKQ Corporation 1998 Equity Incentive Plan (the “Equity Incentive Plan”). The total number of shares approved by our stockholders for issuance under the Equity Incentive Plan is 70 million shares, subject to antidilution and other adjustment provisions. We have granted restricted stock units ("RSUs"), stock options, and restricted stock under the Equity Incentive Plan. Of the shares approved by our stockholders for issuance under the Equity Incentive Plan, 10 million shares remained available for issuance as of December 31, 2019 . We expect to issue new or treasury shares of common stock to cover past and future equity grants. RSUs The RSUs we have issued vest over periods of up to five years , subject to a continued service condition. Currently outstanding RSUs (other than PSUs, which are described below) contain either a time-based vesting condition or a combination of a performance-based vesting condition and a time-based vesting condition, in which case both conditions must be met before any RSUs vest. For all of the RSUs containing a performance-based vesting condition, the Company must report positive diluted earnings per share, subject to certain adjustments, during any fiscal year period within five years following the grant date. Each RSU converts into one share of LKQ common stock on the applicable vesting date. The grant date fair value of RSUs is based on the market price of LKQ stock on the grant date. Starting with our 2019 grants, participants who are eligible for retirement (defined as a voluntary separation of service from the Company after the participant has attained at least 60 years of age and completed at least five years of service) will continue to vest in their awards following retirement; if retirement occurs during the first year of the vesting period (for RSUs subject to a time-based vesting condition) or the first year of the performance period (for RSUs with a performance-based vesting condition), the participant vests in a prorated amount of the RSU grant based on the portion of the year employed. For our RSU grants prior to 2019, participants forfeit their unvested shares upon retirement. The Compensation Committee of our Board of Directors (the "Compensation Committee") approved the grant of 270,388 ; 189,204 ; and 235,537 RSUs to our executive officers that included both a performance-based vesting condition and a time-based vesting condition in 2019 , 2018 , and 2017 , respectively. The performance-based vesting conditions for the 2019 , 2018 , and 2017 grants to our executive officers have been satisfied. The fair value of RSUs that vested during the years ended December 31, 2019 , 2018 , and 2017 was $22 million , $27 million , and $28 million , respectively; the fair value of RSUs vested is based on the market price of LKQ stock on the date vested. The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the year ended December 31, 2019 : Number Outstanding Weighted Average Grant Date Fair Value Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Unvested as of January 1, 2019 1,475,682 $ 34.94 Granted (2) 1,021,535 $ 27.82 Vested (796,936 ) $ 32.50 Forfeited / Canceled (88,255 ) $ 33.38 Unvested as of December 31, 2019 1,612,026 $ 31.72 Expected to vest after December 31, 2019 1,458,089 $ 31.75 2.5 $ 52,054 (1) The aggregate intrinsic value of expected to vest RSUs represents the total pretax intrinsic value (the fair value of the Company's stock on the last day of each period multiplied by the number of units) that would have been received by the holders had all RSUs vested. This amount changes based on the market price of the Company’s common stock. (2) The weighted average grant date fair value of RSUs granted during the years ended December 31, 2018 and 2017 was $42.58 and $32.15 , respectively. In 2019, we granted performance-based three-year RSUs ("PSUs") to certain employees, including our executive officers, under our Equity Incentive Plan. As these awards are performance-based, the exact number of shares to be paid out may be up to twice the grant amount, depending on the Company's performance and the achievement of certain performance metrics (adjusted earnings per share, average organic parts and services revenue growth, and average return on invested capital) over the three year period ending December 31, 2021. In 2019, we also granted an immaterial amount of performance-based RSUs to employees that have different performance metrics than those described above. The following table summarizes activity related to our PSUs under the Equity Incentive Plan for the year ended December 31, 2019 : Number Outstanding Weighted Average Grant Date Fair Value Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Unvested as of January 1, 2019 — $ — Granted (2) 136,170 $ 27.69 Unvested as of December 31, 2019 136,170 $ 27.69 Expected to vest after December 31, 2019 136,170 $ 27.69 2.3 $ 4,861 (1) The aggregate intrinsic value of expected to vest PSUs represents the total pretax intrinsic value (the fair value of the Company's stock on the last day of each period multiplied by the number of units at target) that would have been received by the holders had all PSUs vested. This amount changes based on the market price of the Company’s common stock and the achievement of the performance metrics relative to the established targets. (2) Represents the number of PSUs at target payout. Stock Options Stock options vest over periods of up to five years , subject to a continued service condition. Stock options expire either six years or ten years from the date they are granted. No options were granted during 2019 and 2018. No options vested during the year ended December 31, 2019 ; all of our outstanding options are fully vested. The following table summarizes activity related to our stock options under the Equity Incentive Plan for the year ended December 31, 2019 : Number Outstanding Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Balance as of January 1, 2019 1,051,494 $ 10.15 Exercised (926,809 ) $ 9.77 $ 19,725 Canceled (10,091 ) $ 21.25 Balance as of December 31, 2019 114,594 $ 12.26 0.1 $ 2,686 Exercisable as of December 31, 2019 114,594 $ 12.26 0.1 $ 2,686 (1) The aggregate intrinsic value of outstanding and exercisable options represents the total pretax intrinsic value (the difference between the fair value of the Company's stock on the last day of each period and the exercise price, multiplied by the number of options where the fair value exceeds the exercise price) that would have been received by the option holders had all option holders exercised their options as of the last day of the period indicated. This amount changes based on the market price of the Company’s common stock. The aggregate intrinsic value of stock options exercised during the years ended December 31, 2018 and 2017 was $18 million and $21 million , respectively. Stock-Based Compensation Expense For the RSUs that contain both a performance-based vesting condition and a time-based vesting condition, we recognize compensation expense under the accelerated attribution method, pursuant to which expense is recognized over the requisite service period for each separate vesting tranche of the award. During the years ended December 31, 2019 , 2018 , and 2017 , we recognized $11 million , $8 million , and $7 million , respectively, of stock based compensation expense related to the RSUs containing a performance-based vesting condition. For all other awards, which are subject to only a time-based vesting condition, we recognize compensation expense on a straight-line basis over the requisite service period of the entire award. Forfeitures are recorded as they occur. The components of pre-tax stock-based compensation expense for our continuing operations are as follows (in thousands): Year Ended December 31, 2019 2018 2017 RSUs $ 27,695 $ 22,760 $ 22,826 Stock options and other — — 6 Total stock-based compensation expense $ 27,695 $ 22,760 $ 22,832 The following table sets forth the classification of total stock-based compensation expense included in our Consolidated Statements of Income for our continuing operations (in thousands): Year Ended December 31, 2019 2018 2017 Cost of goods sold $ 477 $ 469 $ 434 Selling, general and administrative expenses 27,218 22,291 22,398 Total stock-based compensation expense 27,695 22,760 22,832 Income tax benefit (6,227 ) (5,220 ) (5,459 ) Total stock-based compensation expense, net of tax $ 21,468 $ 17,540 $ 17,373 We have not capitalized any stock-based compensation costs during the years ended December 31, 2019 , 2018 , and 2017 . As of December 31, 2019 , unrecognized compensation expense related to unvested RSUs and PSUs is expected to be recognized as follows (in thousands): 2020 $ 16,776 2021 10,863 2022 6,054 2023 2,641 2024 182 Total unrecognized compensation expense $ 36,516 Stock-based compensation expense related to these awards will be different to the extent that forfeitures are realized and performance under the PSUs differs from target.

Earnings Per Share Earnings Per

Earnings Per Share Earnings Per Share (Notes)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share Basic earnings per share are computed using the weighted average number of common shares outstanding during the period. Diluted earnings per share incorporate the incremental shares issuable upon the assumed exercise of stock options and the assumed vesting of RSUs. Certain of our RSUs and stock options were excluded from the calculation of diluted earnings per share because they were antidilutive, but these equity instruments could be dilutive in the future. The following chart sets forth the computation of earnings per share (in thousands, except per share amounts): Year Ended December 31, 2019 2018 2017 Income from continuing operations $ 543,415 $ 487,565 $ 536,974 Denominator for basic earnings per share—Weighted-average shares outstanding 310,155 314,428 308,607 Effect of dilutive securities: RSUs 393 409 544 PSUs — — — Stock options 421 1,012 1,498 Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding 310,969 315,849 310,649 Basic earnings per share from continuing operations $ 1.75 $ 1.55 $ 1.74 Diluted earnings per share from continuing operations (1) $ 1.75 $ 1.54 $ 1.73 (1) Diluted earnings per share from continuing operations was computed using the treasury stock method for dilutive securities. The following table sets forth the number of employee stock-based compensation awards outstanding but not included in the computation of diluted earnings per share because their effect would have been antidilutive for the years ended December 31, 2019 , 2018 , and 2017 (in thousands): Year Ended December 31, 2019 2018 2017 Antidilutive securities: RSUs 586 410 37 Stock options 24 8 39

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Foreign Unrealized Gain (Loss) Unrealized (Loss) Gain Other Comprehensive (Loss) Income from Unconsolidated Subsidiaries Accumulated Balance at January 1, 2017 $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income (loss) 206,451 (44,550 ) 361 — 162,262 Income tax effect (7,366 ) 16,390 (100 ) — 8,924 Reclassification of unrealized loss (gain) — 50,090 (3,519 ) — 46,571 Reclassification of deferred income taxes — (18,483 ) 659 — (17,824 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive loss from unconsolidated subsidiaries — — — (1,309 ) (1,309 ) Balance at December 31, 2017 $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax (loss) income (113,030 ) 37,552 1,132 — (74,346 ) Income tax effect 4,507 (8,846 ) (403 ) — (4,742 ) Reclassification of unrealized gain — (37,009 ) (54 ) — (37,063 ) Reclassification of deferred income taxes — 8,653 22 — 8,675 Other comprehensive loss from unconsolidated subsidiaries — — — (2,343 ) (2,343 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Balance at December 31, 2018 $ (177,597 ) $ 14,374 $ (8,075 ) $ (3,652 ) $ (174,950 ) Pretax income (loss) 7,083 23,850 (31,801 ) — (868 ) Income tax effect — (5,579 ) 8,579 — 3,000 Reclassification of unrealized gain — (35,686 ) (782 ) — (36,468 ) Reclassification of deferred income taxes — 8,399 145 — 8,544 Disposal of business (379 ) — — — (379 ) Other comprehensive income from unconsolidated subsidiaries — — — 236 236 Balance at December 31, 2019 $ (170,893 ) $ 5,358 $ (31,934 ) $ (3,416 ) $ (200,885 ) The amounts of unrealized gains and losses on our Cash Flow Hedges reclassified to our Consolidated Statements of Income are as follows (in thousands): Year Ended December 31 Classification 2019 2018 2017 Unrealized gains on interest rate swaps Interest expense $ 5,872 $ 5,482 $ 373 Unrealized gains on cross currency swaps Interest expense 15,794 11,105 6,835 Unrealized gains (losses) on cross currency swaps (1) Interest income and other income, net 14,020 20,422 (57,298 ) Total $ 35,686 $ 37,009 $ (50,090 ) (1) The amounts reclassified to Interest income and other income, net in our Consolidated Statements of Income offset the impact of the remeasurement of the underlying transactions. Net unrealized losses related to our pension plans were reclassified to Interest income and other income, net in our Consolidated Statements of Income during each of the years ended December 31, 2019 and 2018. Our policy is to reclassify the income tax effect from Accumulated other comprehensive income (loss) to the Provision for income taxes when the related gains and losses are released to the Consolidated Statements of Income. During the first quarter of 2018, we adopted ASU No. 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" ("ASU 2018-02"), which allowed a reclassification from Accumulated other comprehensive income (loss) to Retained earnings for stranded tax effects resulting from the reduction of the U.S. federal statutory income tax rate to 21% from 35% due to the enactment of the Tax Cuts and Jobs Act of 2017 (the "Tax Act"). As a result of the adoption of ASU 2018-02 in the first quarter of 2018, we recorded a $5 million

Long-Term Obligations

Long-Term Obligations	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-Term Obligations	Long-Term Obligations Long-term obligations consist of the following (in thousands): December 31, 2019 2018 Senior secured credit agreement: Term loans payable $ 341,250 $ 350,000 Revolving credit facilities 1,268,008 1,387,177 U.S. Notes (2023) 600,000 600,000 Euro Notes (2024) 560,650 573,350 Euro Notes (2026/28) 1,121,300 1,146,700 Receivables securitization facility — 110,000 Notes payable through October 2030 at weighted average interest rates of 3.2% and 2.0%, respectively 26,971 23,056 Finance lease obligations at weighted average interest rates of 4.1% and 4.5%, respectively 40,837 39,966 Other debt at weighted average interest rates of 1.8% and 1.8%, respectively 113,010 117,448 Total debt 4,072,026 4,347,697 Less: long-term debt issuance costs (29,990 ) (36,906 ) Less: current debt issuance costs (280 ) (291 ) Total debt, net of debt issuance costs 4,041,756 4,310,500 Less: current maturities, net of debt issuance costs (326,367 ) (121,826 ) Long term debt, net of debt issuance costs $ 3,715,389 $ 4,188,674 The scheduled maturities of long-term obligations outstanding at December 31, 2019 are as follows (in thousands): 2020 (1) $ 326,648 2021 (1) 133,951 2022 25,912 2023 21,650 2024 (1) 2,427,714 Thereafter 1,136,151 Total debt (2) $ 4,072,026 (1) Of the $600 million U.S. Notes (2023) that were redeemed in January 2020, in the table above $185 million is included in 2020 (reflecting the amount repaid with cash on hand), $105 million is included in 2021 (reflecting the amount repaid using borrowings under the receivables securitization facility), and $310 million is included in 2024 (reflecting the amount repaid using borrowings under the revolving credit facility). (2) The total debt amounts presented above exclude debt issuance costs totaling $30 million as of December 31, 2019 . Senior Secured Credit Agreement On November 20, 2018, LKQ Corporation, LKQ Delaware LLP, and certain other subsidiaries (collectively, the "Borrowers") entered into Amendment No. 3 to the Fourth Amended and Restated Credit Agreement ("Credit Agreement"), which amended the Fourth Amended and Restated Credit Agreement dated January 29, 2016 by modifying certain terms to (1) increase the total availability under the revolving credit facility's multicurrency component from $2.75 billion to $3.15 billion ; (2) reduce the margin on borrowings by 25 basis points at the September 30, 2018 leverage ratio, and reduce the number of leverage pricing tiers; (3) extend the maturity date by one year to January 29, 2024; (4) reduce the unused facility fee depending on leverage category; (5) increase the capacity for incurring additional indebtedness under our receivables securitization facility; (6) increase the maximum borrowing limit of swingline loans and add the ability to borrow in British Pounds and Euros; and (7) make other immaterial or clarifying modifications and amendments to the terms of the Credit Agreement. Borrowings will continue to bear interest at variable rates. Amounts under the revolving credit facility are due and payable upon maturity of the Credit Agreement on January 29, 2024. Term loan borrowings, which totaled $341 million as of December 31, 2019 , are due and payable in quarterly installments equal to approximately $4 million on the last day of each fiscal quarter, with the remaining balance due and payable on January 29, 2024. The increase in the revolving credit facility's multicurrency component of $400 million was used in part to pay down $240 million of the term loan (to the new $350 million amount that was outstanding as of the date of the amendment); the remainder was used for general corporate purposes. We are required to prepay the term loan by amounts equal to proceeds from the sale or disposition of certain assets if the proceeds are not reinvested within twelve months. We also have the option to prepay outstanding amounts under the Credit Agreement without penalty. The Credit Agreement contains customary representations and warranties and customary covenants that provide limitations and conditions on our ability to enter into certain transactions. The Credit Agreement also contains financial and affirmative covenants, including limitations on our net leverage ratio and a minimum interest coverage ratio. Borrowings under the Credit Agreement bear interest at variable rates, which depend on the currency and duration of the borrowing elected, plus an applicable margin. The applicable margin is subject to change in increments of 0.25% depending on our net leverage ratio. Interest payments are due on the last day of the selected interest period or quarterly in arrears depending on the type of borrowing. Including the effect of the interest rate swap agreements described in Note 11, "Derivative Instruments and Hedging Activities," the weighted average interest rates on borrowings outstanding under the Credit Agreement at December 31, 2019 and 2018 were 1.6% and 1.9% , respectively. We also pay a commitment fee based on the average daily unused amount of the revolving credit facilities. The commitment fee is subject to change in increments of 0.05% depending on our net leverage ratio. In addition, we pay a participation commission on outstanding letters of credit at an applicable rate based on our net leverage ratio, and a fronting fee of 0.125% to the issuing bank, which are due quarterly in arrears. Of the total borrowings outstanding under the Credit Agreement, there were $18 million classified as current maturities at December 31, 2019 compared to $9 million at December 31, 2018 . As of December 31, 2019 , there were letters of credit outstanding in the aggregate amount of $69 million . The amounts available under the revolving credit facilities are reduced by the amounts outstanding under letters of credit, and thus availability under the revolving credit facilities at December 31, 2019 was $1.8 billion . Related to the execution of Amendment No. 3 to the Fourth Amended and Restated Credit Agreement in November 2018, we incurred $4 million of fees, the majority of which were capitalized as an offset to Long-Term Obligations and are amortized over the term of the agreement. The amounts recorded as a loss on debt extinguishment in the Consolidated Statements of Income for the years ended December 31, 2018 and 2017 were primarily related to the write-off of capitalized debt issuance costs related to various amendments to our Fourth Amended and Restated Credit Agreement. U.S. Notes (2023) In 2013, we issued $600 million aggregate principal amount of 4.75% senior notes due 2023 (the "U.S. Notes (2023)"). The U.S. Notes (2023) were governed by the Indenture dated as of May 9, 2013 (the "U.S. Notes (2023) Indenture") among LKQ Corporation, certain of our subsidiaries (the "Guarantors"), the trustee, paying agent, transfer agent and registrar. The U.S. Notes (2023) were registered under the Securities Act of 1933. The U.S. Notes (2023) bore interest at a rate of 4.75% per year from the most recent payment date on which interest had been paid or provided for. Interest on the U.S. Notes (2023) was payable in arrears on May 15 and November 15 of each year. The U.S. Notes (2023) were fully and unconditionally guaranteed, jointly and severally, by the Guarantors. The U.S. Notes (2023) and the related guarantees were, respectively, LKQ Corporation's and each Guarantor's senior unsecured obligations and were subordinated to all of the Guarantors' existing and future secured debt to the extent of the assets securing that secured debt. In addition, the U.S. Notes (2023) were effectively subordinated to all of the liabilities of our subsidiaries that were not guaranteeing the U.S. Notes (2023) to the extent of the assets of those subsidiaries. On January 10, 2020, we redeemed the U.S Notes (2023) at a redemption price equal to 101.583% of the principal amount of the U.S. Notes (2023) plus accrued and unpaid interest thereon to, but not including, January 10, 2020. The total redemption payment was $614 million , including an early-redemption premium of $9 million and accrued and unpaid interest of $4 million . In the first quarter of 2020, we will record a loss on debt extinguishment of $13 million related to the redemption due to the early-redemption premium and the write-off of the unamortized debt issuance costs. Euro Notes (2024) On April 14, 2016, LKQ Italia Bondco S.p.A. ("LKQ Italia"), an indirect, wholly-owned subsidiary of LKQ Corporation, completed an offering of €500 million aggregate principal amount of senior notes due April 1, 2024 (the "Euro Notes (2024)") in a private placement conducted pursuant to Regulation S and Rule 144A under the Securities Act of 1933. The proceeds from the offering were used to repay a portion of the revolver borrowings under the Credit Agreement and to pay related fees and expenses. The Euro Notes (2024) are governed by the Indenture dated as of April 14, 2016 (the "Euro Notes (2024) Indenture") among LKQ Italia, LKQ Corporation and certain of our subsidiaries (the "Euro Notes (2024) Subsidiaries"), the trustee, and the paying agent, transfer agent, and registrar. The Euro Notes (2024) bear interest at a rate of 3.875% per year from the date of original issuance or from the most recent payment date on which interest has been paid or provided for. Interest on the Euro Notes (2024) is payable in arrears on April 1 and October 1 of each year. The Euro Notes (2024) are fully and unconditionally guaranteed by LKQ Corporation and the Euro Notes (2024) Subsidiaries (the "Euro Notes (2024) Guarantors"). The Euro Notes (2024) and the related guarantees are, respectively, LKQ Italia's and each Euro Notes (2024) Guarantor’s senior unsecured obligations and are subordinated to all of LKQ Italia's and the Euro Notes (2024) Guarantors' existing and future secured debt to the extent of the assets securing that secured debt. In addition, the Euro Notes (2024) are effectively subordinated to all of the liabilities of our subsidiaries that are not guaranteeing the Euro Notes (2024) to the extent of the assets of those subsidiaries. The Euro Notes (2024) have been listed on the ExtraMOT, Professional Segment of the Borsa Italia S.p.A. securities exchange and the Global Exchange Market of Euronext Dublin. The Euro Notes (2024) are redeemable, in whole or in part, at any time at a redemption price of 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date plus a "make whole" premium. On or after January 1, 2024, we may redeem some or all of the Euro Notes (2024) at a redemption price of 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date. We may be required to make an offer to purchase the Euro Notes (2024) upon the sale of certain assets, subject to certain exceptions, and upon a change of control. In addition, in the event of certain developments affecting taxation or under certain other circumstances which, in any case, require the payment of certain additional amounts, we may redeem the Euro Notes (2024) in whole, but not in part, at any time at a redemption price of 100% of the principal amount thereof plus accrued but unpaid interest, if any, and such certain additional amounts, if any, to the redemption date. Euro Notes (2026/28) On April 9, 2018, LKQ European Holdings B.V. ("LKQ Euro Holdings"), a wholly-owned subsidiary of LKQ Corporation, completed an offering of €1.0 billion aggregate principal amount of senior notes. The offering consisted of €750 million senior notes due 2026 (the "2026 notes") and €250 million senior notes due 2028 (the "2028 notes" and, together with the 2026 notes, the "Euro Notes (2026/28)") in a private placement conducted pursuant to Regulation S and Rule 144A under the Securities Act of 1933. The proceeds from the offering, together with borrowings under our senior secured credit facility, were or will be used to (i) finance a portion of the consideration paid for the Stahlgruber acquisition, (ii) for general corporate purposes and (iii) to pay related fees and expenses, including the refinancing of net financial debt. The Euro Notes (2026/28) are governed by the Indenture dated as of April 9, 2018 (the “Euro Notes (2026/28) Indenture”) among LKQ Euro Holdings, LKQ Corporation and certain of our subsidiaries (the “Euro Notes (2026/28) Subsidiaries”), the trustee, paying agent, transfer agent, and registrar. The 2026 notes and 2028 notes bear interest at a rate of 3.625% and 4.125% , respectively, per year from the date of original issuance or from the most recent payment date on which interest has been paid or provided for. Interest on the Euro Notes (2026/28) is payable in arrears on April 1 and October 1 of each year. The Euro Notes (2026/28) are fully and unconditionally guaranteed by LKQ Corporation and the Euro Notes (2026/28) Subsidiaries (the "Euro Notes (2026/28) Guarantors"). The Euro Notes (2026/28) and the related guarantees are, respectively, LKQ Euro Holdings' and each Euro Notes (2026/28) Guarantor’s senior unsecured obligations and will be subordinated to all of LKQ Euro Holdings' and the Euro Notes (2026/28) Guarantors’ existing and future secured debt to the extent of the assets securing that secured debt. In addition, the Euro Notes (2026/28) are effectively subordinated to all of the liabilities of our subsidiaries that are not guaranteeing the Euro Notes (2026/28) to the extent of the assets of those subsidiaries. The Euro Notes (2026/28) have been listed on the Global Exchange Market of Euronext Dublin. The Euro Notes (2026/28) are redeemable, in whole or in part, at any time at a redemption price of 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date plus a "make whole" premium. On or after April 1, 2021, we may redeem some or all of the 2026 notes at the applicable redemption prices set forth in the Euro Notes (2026/28) Indenture. On or after April 1, 2023, we may redeem some or all of the 2028 notes at the applicable redemption prices set forth in the Euro Notes (2026/28) Indenture. We also may redeem up to 35% of the 2026 notes and up to 35% of the 2028 notes before April 1, 2021 with the net cash proceeds from certain equity offerings. We may be required to make an offer to purchase the Euro Notes (2026/28) upon the sale of certain assets, subject to certain exceptions, and upon a change of control. In addition, in the event of certain developments affecting taxation or under certain other circumstances which, in any case, require the payment of certain additional amounts, we may redeem the Euro Notes (2026/28) in whole, but not in part, at any time at a redemption price of 100% of the principal amount thereof, plus accrued but unpaid interest, if any, and such certain additional amounts, if any, to the redemption date. Related to the execution of the Euro Notes (2026/28) in April 2018, we incurred $16 million of fees, which were capitalized as an offset to Long-Term Obligations and are amortized over the term of the Euro Notes (2026/28). Restricted Payments Our senior secured credit agreement and our senior notes indentures contain limitations on payment of cash dividends or other distributions of assets. Based on limitations in effect under our senior secured credit agreement and senior notes indentures, the maximum amount of dividends we could pay as of December 31, 2019 was approximately $1.9 billion . The limit on the payment of dividends is calculated using historical financial information and will change from period to period. Receivables Securitization Facility On December 20, 2018, we amended the terms of our receivables securitization facility with MUFG to: (i) extend the term of the facility to November 8, 2021; (ii) increase the maximum amount available to $110 million ; and (iii) make other clarifying and updating changes. Under the facility, LKQ sells an ownership interest in certain receivables, related collections and security interests to MUFG for the benefit of conduit investors and/or financial institutions for cash proceeds. Upon payment of the receivables by customers, rather than remitting to MUFG the amounts collected, LKQ retains such collections as proceeds for the sale of new receivables generated by certain of the ongoing operations of the Company. The sale of the ownership interest in the receivables is accounted for as a secured borrowing on our Consolidated Balance Sheets, under which the receivables included in the program collateralize the amounts invested by MUFG, the conduit investors and/or financial institutions (the "Purchasers"). The receivables are held by LKQ Receivables Finance Company, LLC ("LRFC"), a wholly owned bankruptcy-remote special purpose subsidiary of LKQ, and therefore, the receivables are available first to satisfy the creditors of LRFC, including the Purchasers. While there were no borrowings on our receivables securitization facility as of December 31, 2019, $132 million of net receivables were available as collateral for the investment under the receivables facility as of December 31, 2019 ; there were also $132 million of net receivables available as collateral as of December 31, 2018 . Under the receivables facility, we pay variable interest rates plus a margin on the outstanding amounts invested by the Purchasers. The variable rates are based on (i) commercial paper rates, (ii) LIBOR, or (iii) base rates, and are payable monthly in arrears. The commercial paper rate is the applicable variable rate unless conduit investors are not available to invest in the receivables at commercial paper rates. In such case, financial institutions will invest at the LIBOR rate or at base rates. We also pay a commitment fee on the excess of the investment maximum over the average daily outstanding investment, payable monthly in arrears. The outstanding balance was $110 million as of December 31, 2018 , and there was no outstanding balance as of December 31, 2019 . At December 31, 2018

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities (Notes)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivative Instruments and Hedging Activities We are exposed to market risks, including the effect of changes in interest rates, foreign currency exchange rates and commodity prices. Under our current policies, we use derivatives to manage our exposure to variable interest rates on our senior secured debt and changing foreign exchange rates for certain foreign currency denominated transactions. We do not hold or issue derivatives for trading purposes. Cash Flow Hedges We hold interest rate swap agreements to hedge a portion of the variable interest rate risk on our variable rate borrowings under our Credit Agreement, with the objective of minimizing the impact of interest rate fluctuations and stabilizing cash flows. Under the terms of the interest rate swap agreements, we pay the fixed interest rate and receive payment at a variable rate of interest based on LIBOR for the respective currency of each interest rate swap agreement’s notional amount. Changes in the fair value of the interest rate swap agreements are recorded in Accumulated Other Comprehensive Income (Loss) and are reclassified to Interest expense when the underlying interest payment has an impact on earnings. Our interest rate swap contracts have maturity dates ranging from January to June 2021. In December 2018, we sold two interest rate swap contracts with a notional amount of $110 million . From time to time, we may hold foreign currency forward contracts related to certain foreign currency denominated intercompany transactions, with the objective of minimizing the impact of fluctuating exchange rates on these future cash flows. Under the terms of the foreign currency forward contracts, we will sell the foreign currency in exchange for U.S. dollars at a fixed rate on the maturity dates of the contracts. Changes in the fair value of the foreign currency forward contracts are recorded in Accumulated Other Comprehensive Income (Loss) and reclassified to Interest income and other income, net when the underlying transaction has an impact on earnings. We hold cross currency swaps, which contain an interest rate swap component and a foreign currency forward contract component that, combined with related intercompany financing arrangements, effectively convert variable rate U.S. dollar-denominated borrowings into fixed rate euro-denominated borrowings. The swaps are intended to minimize the impact of fluctuating exchange rates and interest rates on the cash flows resulting from the related intercompany financing arrangements. Changes in the fair value of the derivative instruments are recorded in Accumulated Other Comprehensive Income (Loss) and are reclassified to Interest expense and Interest income and other income, net when the underlying transactions have an impact on earnings. For certain of the swaps, the notional amount steps down by €4 million quarterly, with the balance maturing at the end of the contract. Our cross currency swaps have maturity dates in October 2020 and January 2021. In October 2019, one of our cross currency swaps matured with a notional amount of $92 million ( €80 million ). The activity related to our cash flow hedges is presented in operating activities in our Consolidated Statements of Cash Flows. The following tables summarize the notional amounts and fair values of our designated cash flow hedges as of December 31, 2019 and 2018 (in thousands): Notional Amount Fair Value at December 31, 2019 (USD) December 31, 2019 Other Current Assets Other Noncurrent Assets Other Accrued Expenses Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 480,000 $ — $ 3,262 $ — $ — Cross currency swap agreements USD/euro $ 466,621 2,975 181 970 23,349 Total cash flow hedges $ 2,975 $ 3,443 $ 970 $ 23,349 Notional Amount Fair Value at December 31, 2018 (USD) December 31, 2018 Other Current Assets Other Noncurrent Assets Other Accrued Expenses Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 480,000 $ — $ 14,967 $ — $ — Cross currency swap agreements USD/euro $ 574,315 211 7,669 127 40,870 Total cash flow hedges $ 211 $ 22,636 $ 127 $ 40,870 While certain derivative instruments executed with the same counterparty are subject to master netting arrangements, we present our cash flow hedge derivative instruments on a gross basis on our Consolidated Balance Sheets. The impact of netting the fair values of these contracts would result in a decrease to Prepaid expenses and other current assets and Other accrued expenses on our Consolidated Balance Sheets of $1 million at December 31, 2019 . The impact of netting the fair values of these contracts would result in a decrease to Other noncurrent assets and Other noncurrent liabilities on our Consolidated Balance Sheets of $1 million and $14 million at December 31, 2019 and 2018 , respectively. The activity related to our cash flow hedges is included in Note 9, "Accumulated Other Comprehensive Income (Loss) ." As of December 31, 2019 , we estimate that we will reclassify $12 million of derivative gains (net of tax) from Accumulated Other Comprehensive Income (Loss) to Interest expense in our Consolidated Statements of Income within the next 12 months. We estimate that we will also reclassify $8 million of derivative losses (net of tax) from Accumulated Other Comprehensive Income (Loss) to Interest income and other income, net in our Consolidated Statements of Income within the next 12 months; the reclassification of derivative losses to Interest income and other income, net offsets the projected impact of the remeasurement of the underlying transactions. Other Derivative Instruments We hold other short-term derivative instruments, including foreign currency forward contracts, to manage our exposure to variability related to inventory purchases denominated in a non-functional currency. We have elected not to apply hedge accounting for these transactions, and therefore the contracts are adjusted to fair value through our results of operations as of each balance sheet date, which could result in volatility in our earnings. The notional amount and fair value of these contracts at December 31, 2019 and 2018 , along with the effect on our results of operations in 2019 , 2018 and 2017

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Measurements Financial Assets and Liabilities Measured at Fair Value We use the market and income approaches to estimate the fair value of our financial assets and liabilities, and during the year ended December 31, 2019 , there were no significant changes in valuation techniques or inputs related to the financial assets or liabilities that we have historically recorded at fair value. The tiers in the fair value hierarchy include: Level 1, defined as observable inputs such as quoted market prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as significant unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions. The following tables present information about our financial assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation inputs we utilized to determine such fair value as of December 31, 2019 and December 31, 2018 (in thousands): Balance as of December 31, 2019 Fair Value Measurements as of December 31, 2019 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 60,637 $ — $ 60,637 $ — Interest rate swaps 3,262 — 3,262 — Cross currency swap agreements 3,156 — 3,156 — Total Assets $ 67,055 $ — $ 67,055 $ — Liabilities: Contingent consideration liabilities $ 11,539 $ — $ — $ 11,539 Deferred compensation liabilities 63,981 — 63,981 — Cross currency swap agreements 24,319 — 24,319 — Total Liabilities $ 99,839 $ — $ 88,300 $ 11,539 Balance as of December 31, 2018 Fair Value Measurements as of December 31, 2018 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 47,649 $ — $ 47,649 $ — Interest rate swaps 14,967 — 14,967 — Cross currency swap agreements 7,880 — 7,880 — Total Assets $ 70,496 $ — $ 70,496 $ — Liabilities: Contingent consideration liabilities $ 5,209 $ — $ — $ 5,209 Deferred compensation liabilities 48,984 — 48,984 — Cross currency swap agreements 40,997 — 40,997 — Total Liabilities $ 95,190 $ — $ 89,981 $ 5,209 The cash surrender value of life insurance is included in Other noncurrent assets on our Consolidated Balance Sheets. The current portion of deferred compensation is included in Accrued payroll-related liabilities and the current portion of contingent consideration liabilities is included in Other current liabilities on our Consolidated Balance Sheets; the noncurrent portion of these amounts is included in Other noncurrent liabilities on our Consolidated Balance Sheets based on the expected timing of the related payments. The balance sheet classification of the interest rate swaps and cross currency swap agreements is presented in Note 11, "Derivative Instruments and Hedging Activities ." Our Level 2 assets and liabilities are valued using inputs from third parties and market observable data. We obtain valuation data for the cash surrender value of life insurance and deferred compensation liabilities from third party sources, which determine the net asset values for our accounts using quoted market prices, investment allocations and reportable trades. We value our other derivative instruments using a third party valuation model that performs a discounted cash flow analysis based on the terms of the contracts and market observable inputs such as current and forward interest rates and current and forward foreign exchange rates. Our contingent consideration liabilities are related to our business acquisitions. Under the terms of the contingent consideration agreements, payments may be made at specified future dates depending on the performance of the acquired business subsequent to the acquisition. The liabilities for these payments are classified as Level 3 liabilities because the related fair value measurement, which is determined using an income approach, includes significant inputs not observable in the market. Financial Assets and Liabilities Not Measured at Fair Value Our debt is reflected on the Consolidated Balance Sheets at cost. Based on market conditions as of December 31, 2019 and 2018 , the fair value of our credit agreement borrowings reasonably approximated the carrying values of $1.6 billion and $1.7 billion , respectively. In addition, based on market conditions, the fair value of the outstanding borrowings under the receivables facility reasonably approximated the carrying value of $110 million at December 31, 2018 ; as of December 31, 2019, there were no outstanding borrowings under the receivables facility. As of December 31, 2019 and December 31, 2018 , the fair values of the U.S. Notes (2023) were approximately $609 million and $574 million , respectively, compared to a carrying value of $600 million at each date. As of December 31, 2019 and December 31, 2018 , the fair values of the Euro Notes (2024) were approximately $632 million and $586 million compared to carrying values of $561 million and $573 million , respectively. As of December 31, 2019 , the fair value of the Euro Notes (2026/28) was $1.2 billion compared to a carrying value of $1.1 billion ; as of December 31, 2018, the fair value of the Euro Notes (2026/28) approximated the carrying value of $1.1 billion . The fair value measurements of the borrowings under our credit agreement and receivables facility are classified as Level 2 within the fair value hierarchy since they are determined based upon significant inputs observable in the market, including interest rates on recent financing transactions with similar terms and maturities. We estimated the fair value by calculating the upfront cash payment a market participant would require at December 31, 2019 to assume these obligations. The fair value of our U.S. Notes (2023) is classified as Level 1 within the fair value hierarchy since it is determined based upon observable market inputs including quoted market prices in an active market. The fair values of our Euro Notes (2024) and Euro Notes (2026/28) are determined based upon observable market inputs including quoted market prices in markets that are not active, and therefore are classified as Level 2 within the fair value hierarchy.

Leases (Notes)

Leases (Notes)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases [Text Block]	Leases We lease certain warehouses, distribution centers, retail stores, office space, land, vehicles and equipment. We determine if an arrangement is a lease at inception. Operating lease right-of-use ("ROU") assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the commencement date. As the implicit rate for most of our leases is not readily determinable, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. Upon adoption of the new lease standard, we utilized our incremental borrowing rate as of the date of adoption. We determine our incremental borrowing rate by analyzing yield curves with consideration of lease term, and country and company specific factors. The operating lease ROU asset also includes any lease prepayments and excludes lease incentives. Many of our leases include one or more options to renew, with renewal terms that can extend the lease term from 1 to 40 years or more. For each lease, we consider whether we are reasonably certain to exercise these options to extend. Other contracts may contain termination options that we assess to determine whether we are reasonably certain not to exercise those options. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Some of our lease agreements include rental payments adjusted periodically for inflation. Most of these adjustments are considered variable lease costs. Other variable lease costs consist of certain non-lease components that are disclosed as lease costs due to our election of the practical expedient to combine lease and non-lease components and include items such as variable payments for utilities, property taxes, common area maintenance, sales taxes, and insurance. For leases with an initial term of 12 months or less, we have not recognized an operating lease ROU asset or operating lease liability on the Consolidated Balance Sheets; we recognize lease expense for these leases on a straight-line basis over the lease terms. We guarantee the residual values for the majority of our vehicles. The residual values decline over the lease terms to a defined percentage of original cost. In the event the lessor does not realize the residual value when a vehicle is sold, we would be responsible for a portion of the shortfall. Similarly, if the lessor realizes more than the residual value when a vehicle is sold, we would be paid the amount realized over the residual value. Had we terminated all of our operating leases subject to these guarantees at December 31, 2019 , our portion of the guaranteed residual value would have totaled approximately $67 million . Other than the residual value guarantees associated with our vehicles discussed above, we do not have any other material residual value guarantees or restrictive covenants. The amounts recorded on the Consolidated Balance Sheet as of December 31, 2019 related to our lease agreements are as follows (in thousands): Leases Classification December 31, 2019 Assets Operating lease assets, net Operating lease assets, net $ 1,308,511 Finance lease assets, net Property, plant and equipment, net 39,077 Total leased assets $ 1,347,588 Liabilities Current Operating Current portion of operating lease liabilities $ 221,527 Finance Current portion of long-term obligations 9,409 Noncurrent Operating Long-term operating lease liabilities, excluding current portion 1,137,597 Finance Long-term obligations, excluding current portion 31,428 Total lease liabilities $ 1,399,961 The components of lease expense are as follows (in thousands): Year Ended Lease Cost Classification December 31, 2019 Operating lease cost Cost of goods sold $ 13,416 Operating lease cost Selling, general and administrative expenses 303,619 Short-term lease cost Selling, general and administrative expenses 9,392 Variable lease cost Selling, general and administrative expenses 95,899 Finance lease cost Amortization of leased assets Depreciation and amortization 10,277 Interest on lease liabilities Interest expense 1,546 Sublease income Selling, general and administrative expenses (1,640 ) Net lease cost $ 432,509 The future minimum lease commitments under our noncancelable operating leases at December 31, 2018 were as follows (in thousands): Years ending December 31: 2019 $ 294,269 2020 256,172 2021 210,632 2022 158,763 2023 131,518 Thereafter 777,165 Future Minimum Lease Payments $ 1,828,519 The future minimum lease commitments under our leases at December 31, 2019 are as follows (in thousands): Operating leases Finance leases (1) Total Years ending December 31: 2020 $ 288,726 $ 10,121 $ 298,847 2021 249,168 8,743 257,911 2022 200,546 7,166 207,712 2023 167,858 3,591 171,449 2024 138,502 3,138 141,640 Thereafter 760,030 19,381 779,411 Future minimum lease payments 1,804,830 52,140 1,856,970 Less: Interest 445,706 11,303 457,009 Present value of lease liabilities $ 1,359,124 $ 40,837 $ 1,399,961 (1) Amounts are included in the scheduled maturities of long-term obligations in " Note 10, "Long-Term Obligations " and in the “Liquidity and Capital Resources” section of Management's Discussion and Analysis of Financial Condition and Results of Operations in Part II, Item 7 of this Annual Report on Form 10-K. As of December 31, 2019 , we have additional minimum operating lease payments for leases that have not yet commenced of $144 million . These operating leases will commence in the next 18 months with lease terms of 1 to 25 years . Most of these leases have not commenced as the assets are in the process of being constructed. The amount includes payments expected to be made under the Benelux region central distribution center lease commencing in early 2021 after construction is completed. The lease has a term of 15 years with two renewal options of 5 years each. Other information related to leases was as follows: Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term (years) Operating leases 9.5 Finance leases 9.2 Weighted-average discount rate Operating leases 5.2 % Finance leases 4.1 % Year Ended Supplemental cash flows information (in thousands) December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ 297,712 Financing cash outflows from finance leases 11,744 Leased assets obtained in exchange for new finance lease liabilities 13,326 Leased assets obtained in exchange for new operating lease liabilities 144,142

Employee Benefit Plans (Notes)

Employee Benefit Plans (Notes)	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Employee Benefit Plans Defined Benefit Plans We have funded and unfunded defined benefit plans covering certain employee groups in the U.S. and various European countries. Local statutory requirements govern many of our European plans. The defined benefit plans are mostly closed to new participants and, in some cases, existing participants no longer accrue benefits. On June 28, 2019, we approved an amendment to terminate our primary defined benefit plan in the U.S. (the "U.S. Plan") and freeze all related benefit accruals, effective June 30, 2019. The distribution of the U.S. Plan assets pursuant to the termination will not be made until the plan termination satisfies all regulatory requirements, which is expected to be completed in 2020. U.S. Plan participants will receive their full accrued benefits from plan assets by electing either lump sum distributions or annuity contracts with a qualifying third party annuity provider. The resulting settlement effect of the U.S. Plan termination will be determined based on prevailing market conditions, the lump sum offer participation rate of eligible participants, the actual lump sum distributions, and annuity purchase rates at the date of distribution. As a result, we are currently unable to reasonably estimate either the timing or the final amount of such settlement charges. Based on the valuation performed as of December 31, 2019, the U.S. Plan has an underfunded status of $8 million . Funded Status The table below summarizes the funded status of our defined benefit plans (in thousands): December 31, 2019 2018 Change in projected benefit obligation: Projected benefit obligation - beginning of year $ 201,492 $ 126,031 Acquisitions (1) 2,071 79,211 Service cost 3,592 3,215 Interest cost 4,077 3,476 Participant contributions 408 415 Actuarial (gain) / loss 32,018 (989 ) Benefits paid (2) (6,849 ) (4,447 ) Curtailment (6 ) — Settlement (3) (8,493 ) (756 ) Currency impact (2,922 ) (4,664 ) Projected benefit obligation - end of year $ 225,388 $ 201,492 Change in fair value of plan assets: Fair value - beginning of year $ 91,672 $ 82,852 Acquisitions (1) — 251 Actual return on plan assets 2,558 3,018 Employer contributions 4,740 9,975 Participant contributions 408 415 Benefits paid (6,770 ) (2,788 ) Settlement (3) (8,493 ) — Currency impact (810 ) (2,051 ) Fair value - end of year $ 83,305 $ 91,672 Funded status at end of year (liability) $ (142,083 ) $ (109,820 ) Accumulated benefit obligation $ 222,607 $ 199,337 (1) 2018 amounts relate primarily to the addition of plans in connection with our acquisition of Stahlgruber. (2) Includes amounts paid from plan assets as well as amounts paid from Company assets. (3) During 2019, settlement accounting was triggered for three of our European pension plans resulting in a net gain of less than $1 million recognized in Interest income and other income, net in our Consolidated Statements of Income. The net amounts recognized for defined benefit plans in the Consolidated Balance Sheets were as follows (in thousands): December 31, 2019 2018 Non-current assets $ — $ 377 Current liabilities (11,754 ) (3,280 ) Non-current liabilities (130,329 ) (106,917 ) $ (142,083 ) $ (109,820 ) The following table summarizes the accumulated benefit obligation and aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Accumulated benefit obligation $ 222,607 $ 169,097 Aggregate fair value of plan assets 83,305 60,988 The following table summarizes the projected benefit obligation and aggregate fair value of plan assets for pension plans with projected benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Projected benefit obligation $ 225,388 $ 171,185 Aggregate fair value of plan assets 83,305 60,988 The table below summarizes the weighted-average assumptions used to calculate the year-end benefit obligations: 2019 2018 Discount rate used to determine benefit obligation 1.4 % 2.1 % Rate of future compensation increase 1.7 % 0.9 % Net Periodic Benefit Cost The table below summarizes the components of net periodic benefit cost for our defined benefit plans (in thousands): Year Ended December 31, 2019 2018 2017 Service cost $ 3,592 $ 3,215 $ 4,525 Interest cost 4,077 3,476 3,670 Expected return on plan assets (1) (2,337 ) (2,949 ) (2,467 ) Amortization of prior service credit — — (181 ) Amortization of actuarial (gain) loss (2) (404 ) (54 ) 473 Curtailment gain — — (3,811 ) Settlement (gain) / loss (378 ) 74 (4 ) Net periodic benefit cost $ 4,550 $ 3,762 $ 2,205 (1) We use the fair value of our plan assets to calculate the expected return on plan assets. (2) Actuarial gains and losses are amortized using a corridor approach. Gains and losses are amortized if, as of the beginning of the year, the cumulative net gain or loss exceeds 10 percent of the greater of the projected benefit obligation or the fair value of the plan assets. Gains and losses in excess of the corridor are amortized over the average remaining service period of active members expected to receive benefits under the plan or, in the case of closed plans, the expected future lifetime of the employees participating in the plan. For the years ended December 31, 2019 , 2018 and 2017, the service cost component of net periodic benefit cost was classified in Selling, general and administrative expenses, while the other components of net periodic benefit cost were classified in Interest income and other income, net in our Consolidated Statements of Income. The table below summarizes the weighted-average assumptions used to calculate the net periodic benefit cost in the table above: 2019 2018 2017 Discount rate used to determine service cost 1.3 % 1.3 % 1.5 % Discount rate used to determine interest cost 2.5 % 2.5 % 3.0 % Rate of future compensation increase 1.8 % 1.9 % 1.3 % Expected long-term return on plan assets (1) 3.1 % 4.8 % 5.0 % (1) Our expected long-term return on plan assets is determined based on our asset allocation and estimate of future long-term returns by asset class. Assumed mortality is also a key assumption in determining benefit obligations and net periodic benefit cost. In some of our European plans, a price inflation index is also an assumption in determining benefit obligations and net periodic benefit cost. As of December 31, 2019 , the pre-tax amounts recognized in Accumulated other comprehensive income consisted of $42 million of net actuarial losses for our defined benefit plans that have not yet been recognized in net periodic benefit cost. Of this amount, we expect $1 million to be recognized as a component of net periodic benefit cost during the year ending December 31, 2020. Fair Value of Plan Assets Fair value is defined as the amount that would be received for selling an asset or paid to transfer a liability in an orderly transaction between market participants. The tiers in the fair value hierarchy include: Level 1, defined as observable inputs such as quoted market prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as significant unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. Investments that are valued using net asset value ("NAV") (or its equivalent) as a practical expedient are excluded from the fair value hierarchy disclosure. The following is a description of the valuation methodologies used for assets reported at fair value. The methodologies used at December 31, 2019 and December 31, 2018 are the same. Level 1 investments: Cash and cash equivalents are valued based on cost, which approximates fair value. Short-term investments are valued initially at cost and adjusted for amortization of any discount or premium. U.S. Bond funds are priced by industry vendors such as Intercontinental Exchange (ICE) Data Services using benchmark yields, reported trades, issuer spreads, and broker/dealer quotes. Level 3 investments: Investments in insurance contracts represent the cash surrender value of the insurance policy. These are actuarially determined amounts based on projections of future benefit payments, discount rates, and expected long-term rate of return on assets. The remaining pension assets are valued at net asset value based on the underlying assets owned by the fund administrator, minus liabilities, divided by the number of units outstanding and are included in the table below to reconcile the total investment fair value of our plan assets. For our unfunded pension plans, the Company pays the defined benefit plan obligations when they become due. The table below summarizes the fair value of our defined benefit plan assets by asset category within the fair value hierarchy for our funded defined benefit pension plans (in thousands): December 31, 2019 2018 Level 1 Level 2 Level 3 NAV Total Level 1 Level 2 Level 3 Total Cash and cash-equivalents (1) $ — $ — $ — $ — $ — $ 30,684 $ — $ — $ 30,684 Short-term investments 433 — — — 433 — — — — U.S. Bonds (2) 29,035 — — — 29,035 — — — — Insurance contracts — — 40,676 — 40,676 — — 60,988 60,988 Mutual fund (3) — — — 13,161 13,161 $ — $ — $ — — Total investments at fair value $ 29,468 $ — $ 40,676 $ 13,161 $ 83,305 $ 30,684 $ — $ 60,988 $ 91,672 (1) Consists of institutional short-term investment funds. (2) Consists primarily of U.S. Treasury notes with readily available pricing data. (3) The underlying assets of the mutual fund valued at NAV consist of international bonds, equity, real estate and other investments. The following table summarizes the changes in fair value measurements of Level 3 investments for our defined benefit plans (in thousands): December 31, 2019 2018 Balance at beginning of year $ 60,988 $ 60,774 Actual return on plan assets: Relating to assets held at the reporting date 1,424 2,556 Purchases, sales and settlements (1,181 ) (541 ) Transfers in and/or out of Level 3 (19,640 ) 255 Currency impact (915 ) (2,056 ) Balance at end of year $ 40,676 $ 60,988 Assets for our defined benefit pension plans in Europe are invested primarily in insurance policies. Under these contracts, we pay premiums to the insurance company, which are based on an internal actuarial analysis performed by the insurance company; the insurance company then funds the pension payments to the plan participants upon retirement. In 2019, we changed our funding for one of our European plans from insurance contracts to a direct investment in a mutual fund which is invested in various international bond, equity, real estate and other investments. The assets for our U.S. plan are managed by a master trust, with oversight responsibility by our Benefits Committee. During 2019, we engaged an investment advisor to help minimize the volatility in our funded status as we began the process of terminating our U.S. Plan. As a result, we updated our investment strategy such that as of December 31, 2019 our U.S. Plan assets reside primarily in U.S. Bonds, with a smaller allocation of assets in short-term investments. The new investment policy and allocation of the assets was approved by our Benefits Committee. Employer Contributions and Estimated Future Benefit Payments During the year ended December 31, 2019 , we contributed $5 million to our pension plans. We estimate that contributions to our pension plans during 2020 will be $13 million . The following table summarizes estimated future benefit payments as of December 31, 2019 (in thousands): Year Ended December 31, Amount 2020 (1) $ 43,446 2021 4,357 2022 4,890 2023 5,003 2024 5,474 2025 - 2029 29,946 (1) This amount includes the gross benefit payments expected to be paid to settle the U.S. Plan, exclusive of plan assets.

Income Taxes (Notes)

Income Taxes (Notes)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes The provision for income taxes consists of the following components (in thousands): Year Ended December 31, 2019 2018 2017 Current: Federal $ 101,839 $ 90,216 $ 196,825 State 24,925 25,851 27,149 Foreign 81,081 77,508 58,123 Total current provision for income taxes $ 207,845 $ 193,575 $ 282,097 Deferred: Federal $ 22,173 $ 14,977 $ (37,486 ) State 6,376 4,386 4,044 Foreign (21,064 ) (21,543 ) (13,095 ) Total deferred provision (benefit) for income taxes $ 7,485 $ (2,180 ) $ (46,537 ) Provision for income taxes $ 215,330 $ 191,395 $ 235,560 Income taxes have been based on the following components of income from continuing operations before provision for income taxes (in thousands): Year Ended December 31, 2019 2018 2017 Domestic $ 616,842 $ 562,758 $ 575,148 Foreign 174,180 180,673 191,479 Income from continuing operations before provision for income taxes $ 791,022 $ 743,431 $ 766,627 The U.S. federal statutory rate is reconciled to the effective tax rate as follows: Year Ended December 31, 2019 2018 2017 U.S. federal statutory rate 21.0 % 21.0 % 35.0 % U.S. federal tax reform - federal deferred tax rate change — % — % (9.5 )% U.S. federal tax reform - transition tax on foreign earnings 0.1 % (1.3 )% 6.6 % State income taxes, net of state credits and federal tax impact 3.2 % 3.5 % 2.8 % Impact of rates on international operations 1.4 % 0.9 % (3.2 )% Excess tax benefits from stock-based compensation (0.3 )% (0.6 )% (1.0 )% Non-deductible expenses 0.9 % 1.6 % 1.1 % Other, net 0.9 % 0.6 % (1.1 )% Effective tax rate 27.2 % 25.7 % 30.7 % On December 22, 2017, the U.S. government enacted the Tax Act. The Tax Act introduced broad and complex changes to U.S. income tax laws that impact us, most notably a reduction of the U.S. statutory corporate tax rate from 35% to 21% for tax years beginning after December 31, 2017. Additionally, beginning in 2018 the Tax Act imposed a regime of taxation on foreign subsidiary earnings, GILTI, and on certain related party payments, BEAT. As part of the transition of U.S. international taxation from a worldwide tax system to a modified territorial tax system, the Tax Act imposed a one-time transition tax on the deemed repatriation of historical earnings of foreign subsidiaries as of December 31, 2017. On December 22, 2017, the U.S. Securities and Exchange Commission Staff issued SAB 118, which provided guidance on accounting for the tax effects of the Tax Act. SAB 118 provided a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting required under ASC 740, Income Taxes . In accordance with SAB 118, a company was required to reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 was complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act was incomplete but the company was able to determine a reasonable estimate, it was required to record a provisional estimate in the financial statements. Transition Tax on Foreign Earnings: In the fourth quarter of 2017, we recognized a provisional income tax expense of $51 million related to the one-time transition tax on foreign earnings. During the third quarter of 2018, we recorded a $10 million favorable adjustment to the provisional amount. As of December 31, 2018, we substantially completed our analysis of the transition tax, and the liability was no longer considered provisional. In the third quarter of 2019, we amended our 2017 transition tax calculation and recorded an additional expense of $1 million . As permitted by the Tax Act, we elected to pay the final $42 million liability in installments over 8 years . This liability has been reduced by the first two installments and other payment credits to $33 million and is recorded in Other noncurrent liabilities on our Consolidated Balance Sheets. Revaluation of Deferred Tax Assets and Liabilities: As a result of the Tax Act reduction in the U.S. federal statutory rate from 35% to 21% , at December 31, 2017, we recorded a provisional decrease to net deferred tax liabilities and a corresponding provisional U.S. federal deferred tax benefit of $73 million . There were no subsequent adjustments recognized with regard to the revaluation of deferred taxes, and the accounting for this impact of the Tax Act is complete. GILTI: While the Tax Act provides for a modified territorial tax system, under a highly complex provision commonly known as GILTI, the Tax Act subjects a U.S. shareholder to current tax on certain earnings of foreign subsidiaries, subject to relief for available foreign tax credits. The FASB Staff Q&A, Topic 740, No. 5, "Accounting for GILTI," provides that an accounting policy election can be made either to recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years, or to provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. We have elected to account for GILTI in the year the tax is incurred. For the years ended December 31, 2019 and 2018, the impact of GILTI increased our effective tax rate by approximately 0.6% and 0.3% , respectively. Indefinite Reinvestment Assertion: Undistributed earnings of our foreign subsidiaries amounted to approximately $743 million at December 31, 2019. Through December 31, 2017, it was our practice and intention to permanently reinvest the undistributed earnings of our foreign subsidiaries, and no U.S. deferred income taxes or foreign withholding taxes were recorded. Beginning in 2018, the Tax Act generally provided a 100% participation exemption from further U.S. taxation of dividends received from 10-percent or more owned foreign corporations held by U.S. corporate shareholders. Although future dividend income is exempt from U.S. federal tax in the hands of the U.S. corporate shareholders, either as a result of the participation exemption, or due to the previous taxation of such earnings under the transition tax and GILTI regime, companies must still apply the guidance of ASC 740 to account for the tax consequences of outside basis differences and other tax impacts of their investments in non-U.S. subsidiaries. Further, the 2017 transition tax reduced a majority of the previous outside basis differences in our foreign subsidiaries, and most of any new differences arising have extensive interaction with the GILTI regime discussed above. Based on a review of our global financing and capital expenditure requirements as of December 31, 2019, we have made no changes to our assertion that we plan to permanently reinvest the undistributed earnings of our international subsidiaries. Thus, no deferred U.S. income taxes or potential foreign withholding taxes have been recorded. Due to the complexity of the new U.S. tax regime, it remains impractical to estimate the amount of deferred taxes potentially payable were such earnings to be repatriated. Although the SAB 118 measurement period has closed, further technical guidance related to the Tax Act, including final regulations on a broad range of topics, is expected to be issued. In accordance with ASC 740, the Company will recognize any effects of the guidance in the period that such guidance is issued. The significant components of our deferred tax assets and liabilities are as follows (in thousands): December 31, 2019 2018 Deferred Tax Assets: Accrued expenses and reserves $ 51,869 $ 60,337 Qualified and nonqualified retirement plans 31,053 20,525 Inventory 12,679 15,474 Accounts receivable 14,025 16,208 Interest deduction carryforwards 25,448 20,392 Stock-based compensation 4,755 4,859 Operating lease assets, net 303,705 — Net operating loss carryforwards 16,287 13,222 Other 11,777 12,370 Total deferred tax assets, gross 471,598 163,387 Less: valuation allowance (41,815 ) (34,779 ) Total deferred tax assets $ 429,783 $ 128,608 Deferred Tax Liabilities: Goodwill and other intangible assets $ 219,879 $ 216,699 Property, plant and equipment 100,461 87,839 Trade name 108,039 116,615 Operating lease liabilities 292,498 — Other 8,916 15,511 Total deferred tax liabilities $ 729,793 $ 436,664 Net deferred tax liability $ (300,010 ) $ (308,056 ) Deferred tax assets and liabilities are reflected on our Consolidated Balance Sheets as follows (in thousands): December 31, 2019 2018 Noncurrent deferred tax assets $ 10,119 $ 3,378 Noncurrent deferred tax liabilities 310,129 311,434 Noncurrent deferred tax assets and noncurrent deferred tax liabilities are included in Other noncurrent assets and Deferred income taxes, respectively, on our Consolidated Balance Sheets. We had net operating loss carryforwards, primarily for certain international tax jurisdictions, the tax benefits of which were $16 million and $13 million at December 31, 2019 and 2018 , respectively. At December 31, 2019 and 2018 , we had tax credit carryforwards for certain U.S. state jurisdictions, the tax benefits of which total less than $1 million and $1 million , respectively. As of December 31, 2019 and 2018, we had interest deduction carryforwards, primarily in Italy and Germany, the tax benefits of which were $25 million and $20 million , respectively. As of December 31, 2019 and 2018, we had a U.S. capital loss carryforward, the tax benefit of which was $5 million . As of December 31, 2019 and 2018, valuation allowances of $42 million and $35 million , respectively, were recorded for deferred tax assets related to the Italy and Germany interest deduction carryforwards, the U.S. capital loss carryforward, and for certain foreign and U.S. net operating loss carryforwards. The $7 million net increase in valuation allowances was primarily attributable to a $5 million valuation allowance provided on the interest deduction carryforwards generated in 2019 due to thin capitalization constraints in Italy and Germany. The net operating losses generally carry forward for an indefinite period. The interest deduction carryforwards in Italy and Germany do not expire. U.S. capital losses carry forward for five years. Realization of these deferred tax assets is dependent on the generation of sufficient taxable income prior to the expiration dates, where applicable, or in the case of interest carryforwards subject to legislative thin capitalization constraints, typically growth in EBITDA. Based on historical and projected operating results, we believe that it is more likely than not that earnings will be sufficient to realize the deferred tax assets for which valuation allowances have not been provided. While we expect to realize the deferred tax assets, net of valuation allowances, changes in tax laws or in estimates of future taxable income may alter this expectation. A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows (in thousands): 2019 2018 2017 Balance at January 1 $ 1,237 $ 1,690 $ 2,146 Additions for acquired tax positions 1,376 — 73 Additions based on tax positions related to the current year 50 5 5 Lapse of statutes of limitations (297 ) (458 ) (534 ) Cumulative translation adjustment (49 ) — — Balance at December 31 $ 2,317 $ 1,237 $ 1,690 Included in the balance of unrecognized tax benefits above as of December 31, 2019 are approximately $2 million , and as of December 31, 2018 and 2017, approximately $1 million , of tax benefits that, if recognized, would affect the effective tax rate. The balance of unrecognized tax benefits at December 31, 2019 , 2018 and 2017 includes approximately $1 million of tax benefits that, if recognized, would result in adjustments to deferred taxes. The Company recognizes interest and penalties accrued related to unrecognized tax benefits as income tax expense. Attributable to the unrecognized tax benefits noted above, the Company had accumulated interest and penalties of less than $1 million at December 31, 2019 , 2018 and 2017 . During each of the years ended December 31, 2019 , 2018 and 2017 , an immaterial amount of interest and penalties were recorded through the income tax provision, prior to any reversals for lapses in the statutes of limitations. During the twelve months beginning January 1, 2020, it is reasonably possible that we will reduce unrecognized tax benefits by less than $1 million , an immaterial amount of which would impact our effective tax rate, primarily as a result of the expiration of certain statutes of limitations. The company and/or its subsidiaries file income tax returns in the U.S. federal jurisdiction, and various U.S. state and international jurisdictions. With few exceptions, the company is no longer subject to U.S. federal, state and local, or international income tax examinations by tax authorities for years before 2015. Adjustments from examinations, if any, are not expected to have a material effect on our consolidated financial statements.

Segment and Geographic Informat

Segment and Geographic Information	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Segment and Geographic Information	Segment and Geographic Information We have four operating segments: Wholesale – North America, Europe, Specialty and Self Service. Our Wholesale – North America and Self Service operating segments are aggregated into one reportable segment, North America, because they possess similar economic characteristics and have common products and services, customers, and methods of distribution. Our reportable segments are organized based on a combination of geographic areas served and type of product lines offered. The reportable segments are managed separately as each business serves different customers (i.e. geographic in the case of North America and Europe and product type in the case of Specialty) and is affected by different economic conditions. Therefore, we present three reportable segments: North America, Europe and Specialty. The following tables present our financial performance by reportable segment for the periods indicated (in thousands): North America Europe Specialty Eliminations Consolidated Year Ended December 31, 2019 Revenue: Third Party $ 5,208,589 $ 5,838,124 $ 1,459,396 $ — $ 12,506,109 Intersegment 705 — 4,646 (5,351 ) — Total segment revenue $ 5,209,294 $ 5,838,124 $ 1,464,042 $ (5,351 ) $ 12,506,109 Segment EBITDA $ 712,957 $ 454,220 $ 161,184 $ — $ 1,328,361 Depreciation and amortization (1) 93,747 191,195 29,464 — 314,406 Year Ended December 31, 2018 Revenue: Third Party $ 5,181,964 $ 5,221,754 $ 1,472,956 $ — $ 11,876,674 Intersegment 645 — 4,724 (5,369 ) — Total segment revenue $ 5,182,609 $ 5,221,754 $ 1,477,680 $ (5,369 ) $ 11,876,674 Segment EBITDA $ 660,153 $ 422,721 $ 168,525 $ — $ 1,251,399 Depreciation and amortization (1) 87,348 178,473 28,256 — 294,077 Year Ended December 31, 2017 Revenue: Third Party $ 4,798,901 $ 3,636,811 $ 1,301,197 $ — $ 9,736,909 Intersegment 750 — 4,319 (5,069 ) — Total segment revenue $ 4,799,651 $ 3,636,811 $ 1,305,516 $ (5,069 ) $ 9,736,909 Segment EBITDA $ 655,275 $ 319,156 $ 142,159 $ — $ 1,116,590 Depreciation and amortization (1) 86,303 120,805 23,095 — 230,203 (1) Amounts presented include depreciation and amortization expense recorded within cost of goods sold. The key measure of segment profit or loss reviewed by our chief operating decision maker, who is our Chief Executive Officer, is Segment EBITDA. Segment EBITDA includes revenue and expenses that are controllable by the segment. Corporate general and administrative expenses are allocated to the segments based on usage, with shared expenses apportioned based on the segment's percentage of consolidated revenue. We calculate Segment EBITDA as EBITDA excluding restructuring and acquisition related expenses (which includes restructuring expenses recorded in Cost of goods sold), change in fair value of contingent consideration liabilities, other gains and losses related to acquisitions, equity method investments or divestitures, equity in losses and earnings of unconsolidated subsidiaries, and impairment charges. EBITDA, which is the basis for Segment EBITDA, is calculated as net income, less net income (loss) attributable to continuing and discontinued noncontrolling interest, excluding discontinued operations and discontinued noncontrolling interest, depreciation, amortization, interest (which includes gains and losses on debt extinguishment) and income tax expense. The table below provides a reconciliation of Net Income to Segment EBITDA (in thousands): Year Ended December 31, 2019 2018 2017 Net income $ 545,034 $ 483,168 $ 530,228 Less: net income attributable to continuing noncontrolling interest 2,800 3,050 (3,516 ) Less: net income attributable to discontinued noncontrolling interest 974 — — Net income attributable to LKQ stockholders 541,260 480,118 533,744 Subtract: Net income (loss) from discontinued operations 1,619 (4,397 ) (6,746 ) Net income attributable to discontinued noncontrolling interest (974 ) — — Net income from continuing operations attributable to LKQ stockholders 540,615 484,515 540,490 Add: Depreciation and amortization 290,770 274,213 219,546 Depreciation and amortization - cost of goods sold 21,007 19,864 10,657 Depreciation and amortization - restructuring expenses - cost of goods sold 305 — — Depreciation and amortization - restructuring expenses 2,324 — — Interest expense, net of interest income 136,274 144,536 100,620 (Gain) loss on debt extinguishment (128 ) 1,350 456 Provision for income taxes 215,330 191,395 235,560 EBITDA 1,206,497 1,115,873 1,107,329 Subtract: Equity in (losses) earnings of unconsolidated subsidiaries (1) (32,277 ) (64,471 ) 5,907 Fair value loss on Mekonomen derivative instrument (1) — (5,168 ) — Gain due to resolution of acquisition related matter 12,063 — — Gains on bargain purchases and previously held equity interests (2) 1,157 2,418 3,870 Add: Restructuring and acquisition related expenses (3) 34,658 32,428 19,672 Restructuring expenses - cost of goods sold (4) 20,654 — — Inventory step-up adjustment - acquisition related — 403 3,584 Impairment of net assets held for sale and goodwill (5) (6) 47,102 35,682 — Change in fair value of contingent consideration liabilities 393 (208 ) (4,218 ) Segment EBITDA $ 1,328,361 $ 1,251,399 $ 1,116,590 (1) Refer to "Investments in Unconsolidated Subsidiaries" in Note 4, "Summary of Significant Accounting Policies ," for further information. (2) Reflects the gains on bargain purchases and previously held equity interests related to our acquisitions of wholesale businesses in Europe and Andrew Page. See Note 2, "Business Combinations ," for further information on bargain purchases. (3) Excludes $2 million of depreciation expense that is reported in Restructuring and acquisition related expenses in our Consolidated Statements of Income. Refer to Note 6, "Restructuring and Acquisition Related Expenses," for further information. (4) Refer to Note 6, "Restructuring and Acquisition Related Expenses," for further information. (5) Refer to "Intangible Assets" in Note 4, "Summary of Significant Accounting Policies ," for further information on the impairment of goodwill recorded in 2018. (6) Refer to "Net Assets Held for Sale" in Note 4, "Summary of Significant Accounting Policies ," for further information on the impairment charges recorded during 2019. In 2018, amounts were recorded in Interest income and other income, net in our Consolidated Statements of Income. The following table presents capital expenditures by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 Capital Expenditures North America $ 131,643 $ 129,391 $ 95,823 Europe 121,596 99,885 71,494 Specialty 12,491 20,751 8,175 Discontinued operations — — 3,598 Total capital expenditures $ 265,730 $ 250,027 $ 179,090 The following table presents assets by reportable segment (in thousands): December 31, 2019 2018 2017 Receivables, net North America $ 419,452 $ 411,818 $ 379,666 Europe 636,216 649,174 555,372 Specialty 75,464 93,091 92,068 Total receivables, net 1,131,132 1,154,083 1,027,106 Inventories North America 991,062 1,076,306 1,076,393 Europe 1,401,801 1,410,264 964,068 Specialty 379,914 349,505 340,322 Total inventories 2,772,777 2,836,075 2,380,783 Property, plant and equipment, net North America 610,573 570,508 537,286 Europe 538,951 562,600 293,539 Specialty 84,876 87,054 82,264 Total property, plant and equipment, net 1,234,400 1,220,162 913,089 Operating lease assets, net (1) North America 768,164 — — Europe 457,035 — — Specialty 83,312 — — Total operating lease assets, net 1,308,511 — — Equity method investments North America 17,624 16,404 336 Europe (2) 121,619 162,765 208,068 Total equity method investments 139,243 179,169 208,404 Other unallocated assets 6,193,893 6,003,913 4,837,490 Total assets $ 12,779,956 $ 11,393,402 $ 9,366,872 (1) Refer to Note 13, "Leases," for further information. (2) Refer to "Investments in Unconsolidated Subsidiaries" in Note 4, "Summary of Significant Accounting Policies ," for further information on the decrease in the balance from December 31, 2018 to December 31, 2019. We report net receivables; inventories; net property , plant and equipment; net operating lease assets; and equity method investments by segment as that information is used by the chief operating decision maker in assessing segment performance. These assets provide a measure for the operating capital employed in each segment. Unallocated assets include cash and cash equivalents, prepaid and other current and noncurrent assets, goodwill and other intangibles. Our largest countries of operation are the U.S., followed by the U.K. and Germany. Additional European operations are located in the Netherlands, Italy, Czech Republic, Belgium, Poland, Slovakia, Austria, and other European countries. Our operations in other countries include operations in Canada, engine remanufacturing operations in Mexico, an aftermarket parts freight consolidation warehouse in Taiwan, and administrative support functions in India. Our net sales are attributed to geographic area based on the location of the selling operation. The following table sets forth our revenue by geographic area (in thousands): Year Ended December 31, 2019 2018 2017 Revenue United States $ 6,220,267 $ 6,192,636 $ 5,662,016 United Kingdom 1,599,074 1,665,317 1,548,212 Germany 1,578,543 974,514 1,744 Other countries 3,108,225 3,044,207 2,524,937 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909 The following table sets forth our tangible long-lived assets by geographic area (in thousands): December 31, 2019 2018 2017 Long-lived assets (1) United States $ 1,467,701 $ 620,125 $ 583,236 Germany 340,995 217,476 41 United Kingdom 330,113 165,145 178,021 Other countries 404,102 217,416 151,791 Total long-lived assets $ 2,542,911 $ 1,220,162 $ 913,089 (1) The increase in long-lived assets is primarily related to the net operating lease assets added as a result of the adoption of the new lease accounting standard. Refer to Note 13, "Leases ," for further information.

Selected Quarterly Data (unaudi

Selected Quarterly Data (unaudited) (Notes)	12 Months Ended
	Dec. 31, 2019
Selected Quarterly Data [Abstract]
Quarterly Financial Information [Text Block]	Selected Quarterly Data (unaudited) The following table presents unaudited selected quarterly financial data for the two years ended December 31, 2019 . The operating results for any quarter are not necessarily indicative of the results for any future period. Quarter Ended (1) (In thousands, except per share data) Dec. 31 Sep. 30 Jun. 30 Mar. 31 (2) 2019 Revenue $ 3,009,860 $ 3,147,773 $ 3,248,173 $ 3,100,303 Gross margin 1,196,014 1,200,329 1,247,187 1,208,264 Operating income (1) 206,768 231,364 236,111 222,400 Income from continuing operations (2) 140,833 151,812 151,707 99,063 Net income from discontinued operations (5) (6) 440 781 398 — Net income 141,273 152,593 152,105 99,063 Net income (loss) attributable to continuing noncontrolling interest 479 (46 ) 1,352 1,015 Net income attributable to discontinued noncontrolling interest 406 376 192 — Net income attributable to LKQ stockholders 140,388 152,263 150,561 98,048 Basic earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Diluted earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Quarter Ended (3) (In thousands, except per share data) Dec. 31 (2) (4) (5) Sep. 30 (2) Jun. 30 Mar. 31 2018 Revenue $ 3,002,781 $ 3,122,378 $ 3,030,751 $ 2,720,764 Gross margin 1,161,809 1,197,198 1,161,879 1,053,971 Operating income (4) 164,146 234,733 256,794 226,568 Income from continuing operations (2) 42,456 134,480 157,866 152,763 Net loss from discontinued operations (5) (4,397 ) — — — Net income 38,059 134,480 157,866 152,763 Net income (loss) attributable to continuing noncontrolling interest 2,010 378 859 (197 ) Net income attributable to LKQ stockholders 36,049 134,102 157,007 152,960 Basic earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.51 $ 0.49 Diluted earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.50 $ 0.49 (1) Reflects impairment charges of $15 million , $33 million , and $2 million to net assets held for sale recorded in the first, second, and fourth quarters of 2019, respectively, and a $4 million net reversal of impairment in the third quarter of 2019. See "Net Assets Held for Sale" in Note 4, "Summary of Significant Accounting Policies ," for further information. (2) Reflects impairment charges of $40 million in the first quarter of 2019, and charges of $48 million and $23 million in the fourth and third quarters of 2018, respectively, related to the Mekonomen equity investment. See "Investments in Unconsolidated Subsidiaries" in Note 4, "Summary of Significant Accounting Policies ," for further information. (3) The 2018 amounts presented above include the results of operations of Stahlgruber, from its acquisition effective May 30, 2018. (4) Reflects a $33 million goodwill impairment charge on the Aviation reporting unit recorded in the fourth quarter of 2018. See "Intangible Assets" in Note 4, "Summary of Significant Accounting Policies ," for further information. (5) In the first quarter of 2017, LKQ completed the sale of the glass manufacturing business of its PGW subsidiary. During the fourth quarter of 2019, we incurred costs related to the disposal of the glass manufacturing business of PGW and settled certain tax matters. During the fourth quarter of 2018, we recorded a final tax expense adjustment of $4 million to the loss on sale of the glass manufacturing business of PGW. See "Glass Manufacturing Business" in Note 3, "Discontinued Operations" for further information regarding the disposal of the glass manufacturing business. (6) In the second quarter of 2019, we classified the acquired Stahlgruber Czech Republic wholesale business as discontinued operations. See "Czech Republic" in Note 3, "Discontinued Operations" for further information regarding the planned disposal of the Czech Republic business. (7) The sum of the quarters may not equal the total of the respective year's earnings per share on either a basic or diluted basis due to changes in weighted average shares outstanding throughout the year.

Condensed Consolidating Financi

Condensed Consolidating Financial Information	12 Months Ended
	Dec. 31, 2019
Condensed Consolidating Financial Information [Abstract]
Condensed Financial Statements [Text Block]	Condensed Consolidating Financial Information LKQ Corporation (the "Parent") issued, and the Guarantors have fully and unconditionally guaranteed, jointly and severally, the U.S. Notes (2023) due on May 15, 2023. A Guarantor's guarantee will be unconditionally and automatically released and discharged upon the occurrence of any of the following events: (i) a transfer (including as a result of consolidation or merger) by the Guarantor to any person that is not a Guarantor of all or substantially all assets and properties of such Guarantor, provided the Guarantor is also released from its obligations with respect to indebtedness under the Credit Agreement or other indebtedness of ours, which obligation gave rise to the guarantee of the U.S. Notes (2023); (ii) a transfer (including as a result of consolidation or merger) to any person that is not a Guarantor of the equity interests of a Guarantor or issuance by a Guarantor of its equity interests such that the Guarantor ceases to be a subsidiary, as defined in the U.S. Notes (2023) Indenture, provided the Guarantor is also released from its obligations with respect to indebtedness under the Credit Agreement or other indebtedness of ours, which obligation gave rise to the guarantee of the U.S. Notes (2023); (iii) the release of the Guarantor from its obligations with respect to indebtedness under the Credit Agreement or other indebtedness of ours, which obligation gave rise to the guarantee of the U.S. Notes (2023); and (iv) upon legal defeasance, covenant defeasance or satisfaction and discharge of the U.S. Notes (2023) Indenture, as defined in the U.S. Notes (2023) Indenture. Presented below are the condensed consolidating financial statements of the Parent, the Guarantors, the non-guarantor subsidiaries (the "Non-Guarantors"), and the elimination entries necessary to present our financial statements on a consolidated basis as required by Rule 3-10 of Regulation S-X of the Securities Exchange Act of 1934 resulting from the guarantees of the U.S. Notes (2023). Investments in consolidated subsidiaries have been presented under the equity method of accounting. The principal elimination entries eliminate investments in subsidiaries, intercompany balances, and intercompany revenue and expenses. The condensed consolidating financial statements below have been prepared from our financial information on the same basis of accounting as the consolidated financial statements, and may not necessarily be indicative of the financial position, results of operations or cash flows had the Parent, Guarantors and Non-Guarantors operated as independent entities. On January 10, 2020, we redeemed the U.S Notes (2023) at which point the guarantees were released. Refer to "U.S. Notes (2023)" in Note 10 "Long-Term Obligations," for further information on the redemption. LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 6,269,185 $ 6,384,822 $ (147,898 ) $ 12,506,109 Cost of goods sold — 3,711,074 4,091,139 (147,898 ) 7,654,315 Gross margin — 2,558,111 2,293,683 — 4,851,794 Selling, general and administrative expenses 45,914 1,732,282 1,802,104 — 3,580,300 Restructuring and acquisition related expenses — 8,644 28,335 — 36,979 Impairment of net assets held for sale and goodwill — 39,355 7,747 — 47,102 Depreciation and amortization 479 105,288 185,003 — 290,770 Operating (loss) income (46,393 ) 672,542 270,494 — 896,643 Other expense (income): Interest expense 52,376 299 85,829 — 138,504 Intercompany interest (income) expense, net (58,762 ) 32,899 25,863 — — Gain on debt extinguishment — (128 ) — — (128 ) Interest income and other (income) expense, net (13,269 ) (20,376 ) 890 — (32,755 ) Total other (income) expense, net (19,655 ) 12,694 112,582 — 105,621 (Loss) income from continuing operations before (benefit) provision for income taxes (26,738 ) 659,848 157,912 — 791,022 (Benefit) provision for income taxes (7,062 ) 169,173 53,219 — 215,330 Equity in earnings (losses) of unconsolidated subsidiaries — 1,220 (33,497 ) — (32,277 ) Equity in earnings of subsidiaries 559,317 10,824 — (570,141 ) — Income from continuing operations 539,641 502,719 71,196 (570,141 ) 543,415 Net income (loss) from discontinued operations 1,619 (1,253 ) 1,673 (420 ) 1,619 Net income 541,260 501,466 72,869 (570,561 ) 545,034 Less: net income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: net income attributable to discontinued noncontrolling interest — — 974 — 974 Net income attributable to LKQ stockholders $ 541,260 $ 501,466 $ 69,095 $ (570,561 ) $ 541,260 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 6,276,951 $ 5,766,958 $ (167,235 ) $ 11,876,674 Cost of goods sold — 3,783,376 3,685,676 (167,235 ) 7,301,817 Gross margin — 2,493,575 2,081,282 — 4,574,857 Selling, general and administrative expenses 27,394 1,713,118 1,612,219 — 3,352,731 Restructuring and acquisition related expenses — 3,140 29,288 — 32,428 Impairment of net assets held for sale and goodwill — 33,244 — — 33,244 Depreciation and amortization 137 99,665 174,411 — 274,213 Operating (loss) income (27,531 ) 644,408 265,364 — 882,241 Other expense (income): Interest expense 66,794 640 78,943 — 146,377 Intercompany interest (income) expense, net (65,072 ) 40,756 24,316 — — Loss on debt extinguishment 1,350 — — — 1,350 Interest income and other (income) expense, net (1,082 ) (15,586 ) 7,751 — (8,917 ) Total other expense, net 1,990 25,810 111,010 — 138,810 (Loss) income from continuing operations before (benefit) provision for income taxes (29,521 ) 618,598 154,354 — 743,431 (Benefit) provision for income taxes (18,600 ) 163,937 46,058 — 191,395 Equity in earnings (losses) of unconsolidated subsidiaries — 173 (64,644 ) — (64,471 ) Equity in earnings of subsidiaries 495,436 16,598 — (512,034 ) — Income from continuing operations 484,515 471,432 43,652 (512,034 ) 487,565 Net loss from discontinued operations (4,397 ) (4,397 ) — 4,397 (4,397 ) Net income 480,118 467,035 43,652 (507,637 ) 483,168 Less: net income attributable to noncontrolling interest — — 3,050 — 3,050 Net income attributable to LKQ stockholders $ 480,118 $ 467,035 $ 40,602 $ (507,637 ) $ 480,118 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 5,780,904 $ 4,116,161 $ (160,156 ) $ 9,736,909 Cost of goods sold — 3,458,304 2,639,138 (160,156 ) 5,937,286 Gross margin — 2,322,600 1,477,023 — 3,799,623 Selling, general and administrative expenses 29,884 1,557,883 1,127,640 — 2,715,407 Restructuring and acquisition related expenses — 7,352 12,320 — 19,672 Depreciation and amortization 118 96,717 122,711 — 219,546 Operating (loss) income (30,002 ) 660,648 214,352 — 844,998 Other expense (income): Interest expense 66,030 546 35,064 — 101,640 Intercompany interest (income) expense, net (17,873 ) (2,383 ) 20,256 — — Loss on debt extinguishment 456 — — — 456 Interest income and other expense (income), net 242 (14,323 ) (9,644 ) — (23,725 ) Total other expense (income), net 48,855 (16,160 ) 45,676 — 78,371 (Loss) income from continuing operations before provision for income taxes (78,857 ) 676,808 168,676 — 766,627 Provision for income taxes 28,684 168,288 38,588 — 235,560 Equity in earnings of unconsolidated subsidiaries — — 5,907 — 5,907 Equity in earnings of subsidiaries 648,031 21,836 — (669,867 ) — Income from continuing operations 540,490 530,356 135,995 (669,867 ) 536,974 Net (loss) income from discontinued operations (6,746 ) (6,746 ) 2,050 4,696 (6,746 ) Net income 533,744 523,610 138,045 (665,171 ) 530,228 Less: net loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Net income attributable to LKQ stockholders $ 533,744 $ 523,610 $ 141,561 $ (665,171 ) $ 533,744 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 541,260 $ 501,466 $ 72,869 $ (570,561 ) $ 545,034 Less: net income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: net income attributable to discontinued noncontrolling interest — — 974 — 974 Net income attributable to LKQ stockholders 541,260 501,466 69,095 (570,561 ) 541,260 Other comprehensive (loss) income: Foreign currency translation, net of tax 6,704 5,477 5,360 (10,837 ) 6,704 Net change in unrealized gains/losses on cash flow hedges, net of tax (9,016 ) — — — (9,016 ) Net change in unrealized gains/losses on pension plans, net of tax (23,859 ) (6,088 ) (17,771 ) 23,859 (23,859 ) Net change in other comprehensive income from unconsolidated subsidiaries 236 — 236 (236 ) 236 Other comprehensive loss (25,935 ) (611 ) (12,175 ) 12,786 (25,935 ) Comprehensive income 515,325 500,855 60,694 (557,775 ) 519,099 Less: comprehensive income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: comprehensive income attributable to discontinued noncontrolling interest — — 974 — 974 Comprehensive income attributable to LKQ stockholders $ 515,325 $ 500,855 $ 56,920 $ (557,775 ) $ 515,325 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 480,118 $ 467,035 $ 43,652 $ (507,637 ) $ 483,168 Less: net income attributable to noncontrolling interest — — 3,050 — 3,050 Net income attributable to LKQ stockholders 480,118 467,035 40,602 (507,637 ) 480,118 Other comprehensive (loss) income: Foreign currency translation, net of tax (108,523 ) (8,628 ) (75,462 ) 84,090 (108,523 ) Net change in unrealized gains/losses on cash flow hedges, net of tax 350 — — — 350 Net change in unrealized gains/losses on pension plans, net of tax 697 1,266 (569 ) (697 ) 697 Net change in other comprehensive loss from unconsolidated subsidiaries (2,343 ) — (2,343 ) 2,343 (2,343 ) Other comprehensive loss (109,819 ) (7,362 ) (78,374 ) 85,736 (109,819 ) Comprehensive income (loss) 370,299 459,673 (34,722 ) (421,901 ) 373,349 Less: comprehensive income attributable to noncontrolling interest — — 3,050 — 3,050 Comprehensive income (loss) attributable to LKQ stockholders $ 370,299 $ 459,673 $ (37,772 ) $ (421,901 ) $ 370,299 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 533,744 $ 523,610 $ 138,045 $ (665,171 ) $ 530,228 Less: net loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Net income attributable to LKQ stockholders 533,744 523,610 141,561 (665,171 ) 533,744 Other comprehensive income (loss): Foreign currency translation, net of tax 200,596 16,743 206,049 (222,792 ) 200,596 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,447 (133 ) — 133 3,447 Net change in unrealized gains/losses on pension plans, net of tax (6,035 ) (3,254 ) (2,781 ) 6,035 (6,035 ) Net change in other comprehensive loss from unconsolidated subsidiaries (1,309 ) — (1,309 ) 1,309 (1,309 ) Other comprehensive income 196,699 13,356 201,959 (215,315 ) 196,699 Comprehensive income 730,443 536,966 340,004 (880,486 ) 726,927 Less: comprehensive loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Comprehensive income attributable to LKQ stockholders $ 730,443 $ 536,966 $ 343,520 $ (880,486 ) $ 730,443 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Balance Sheets (In thousands) December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 240,476 $ 44,326 $ 238,218 $ — $ 523,020 Receivables, net — 304,416 826,716 — 1,131,132 Intercompany receivables, net 9,822 — 18,261 (28,083 ) — Inventories — 1,289,389 1,483,388 — 2,772,777 Prepaid expenses and other current assets 11,606 94,146 155,138 — 260,890 Total current assets 261,904 1,732,277 2,721,721 (28,083 ) 4,687,819 Property, plant and equipment, net 423 640,648 593,329 — 1,234,400 Operating lease assets, net 3,701 808,726 496,084 — 1,308,511 Intangible assets: Goodwill — 2,012,282 2,394,253 — 4,406,535 Other intangibles, net 564 249,497 600,277 — 850,338 Investment in subsidiaries 5,345,724 127,551 — (5,473,275 ) — Intercompany notes receivable 1,021,380 120,099 — (1,141,479 ) — Equity method investments — 17,624 121,619 — 139,243 Other noncurrent assets 64,080 39,204 49,826 — 153,110 Total assets $ 6,697,776 $ 5,747,908 $ 6,977,109 $ (6,642,837 ) $ 12,779,956 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 2,883 $ 397,647 $ 542,265 $ — $ 942,795 Intercompany payables, net — 18,261 9,822 (28,083 ) — Accrued expenses: Accrued payroll-related liabilities 8,837 66,877 103,489 — 179,203 Refund liability — 46,789 50,525 — 97,314 Other accrued expenses 8,895 119,352 161,436 — 289,683 Other current liabilities 282 23,641 97,700 121,623 Current portion of operating lease liabilities 224 119,538 101,765 — 221,527 Current portion of long-term obligations 202,220 3,124 121,023 — 326,367 Total current liabilities 223,341 795,229 1,188,025 (28,083 ) 2,178,512 Long-term operating lease liabilities, excluding current portion 3,883 721,584 412,130 — 1,137,597 Long-term obligations, excluding current portion 1,331,015 14,268 2,370,106 — 3,715,389 Intercompany notes payable — 517,361 624,118 (1,141,479 ) — Deferred income taxes 5,229 161,574 143,326 — 310,129 Other noncurrent liabilities 125,432 80,611 159,629 — 365,672 Redeemable noncontrolling interest — — 24,077 — 24,077 Stockholders' equity: Total Company stockholders’ equity 5,008,876 3,457,281 2,015,994 (5,473,275 ) 5,008,876 Noncontrolling interest — — 39,704 — 39,704 Total stockholders’ equity 5,008,876 3,457,281 2,055,698 (5,473,275 ) 5,048,580 Total liabilities and stockholders' equity $ 6,697,776 $ 5,747,908 $ 6,977,109 $ (6,642,837 ) $ 12,779,956 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Balance Sheets (In thousands) December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 25,633 $ 29,285 $ 276,843 $ — $ 331,761 Receivables, net 310 316,726 837,047 — 1,154,083 Intercompany receivables, net 6,978 — 12,880 (19,858 ) — Inventories — 1,343,612 1,492,463 — 2,836,075 Prepaid expenses and other current assets 18,611 99,356 81,063 — 199,030 Total current assets 51,532 1,788,979 2,700,296 (19,858 ) 4,520,949 Property, plant and equipment, net 1,547 600,054 618,561 — 1,220,162 Intangible assets: Goodwill — 1,973,364 2,408,094 — 4,381,458 Other intangibles, net 260 272,451 656,041 — 928,752 Investment in subsidiaries 5,224,006 111,826 — (5,335,832 ) — Intercompany notes receivable 1,220,582 10,515 — (1,231,097 ) — Equity method investments — 16,404 162,765 — 179,169 Other noncurrent assets 70,283 40,548 52,081 — 162,912 Total assets $ 6,568,210 $ 4,814,141 $ 6,597,838 $ (6,586,787 ) $ 11,393,402 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 2,454 $ 343,116 $ 596,828 $ — $ 942,398 Intercompany payables, net — 12,880 6,978 (19,858 ) — Accrued expenses: Accrued payroll-related liabilities 6,652 70,267 95,086 — 172,005 Refund liability — 50,899 53,686 — 104,585 Other accrued expenses 5,454 105,672 177,299 — 288,425 Other current liabilities 283 17,860 42,966 — 61,109 Current portion of long-term obligations 8,459 2,932 110,435 — 121,826 Total current liabilities 23,302 603,626 1,083,278 (19,858 ) 1,690,348 Long-term obligations, excluding current portion 1,628,677 13,532 2,546,465 — 4,188,674 Intercompany notes payable — 597,283 633,814 (1,231,097 ) — Deferred income taxes 8,045 135,355 168,034 — 311,434 Other noncurrent liabilities 125,888 99,147 139,159 — 364,194 Total Company stockholders’ equity 4,782,298 3,365,198 1,970,634 (5,335,832 ) 4,782,298 Noncontrolling interest — — 56,454 — 56,454 Total stockholders’ equity 4,782,298 3,365,198 2,027,088 (5,335,832 ) 4,838,752 Total liabilities and stockholders' equity $ 6,568,210 $ 4,814,141 $ 6,597,838 $ (6,586,787 ) $ 11,393,402 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors (1) Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 500,658 $ 275,443 $ 378,100 $ (90,168 ) $ 1,064,033 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (564 ) (134,992 ) (130,174 ) — (265,730 ) Proceeds from disposals of property, plant and equipment — 6,821 9,224 — 16,045 Investment and intercompany note activity with subsidiaries 130,600 — — (130,600 ) — Acquisitions, net of cash and restricted cash acquired — (23,643 ) (3,653 ) — (27,296 ) Proceeds from disposal of businesses — 19,682 (1,213 ) — 18,469 Investments in unconsolidated subsidiaries — (3,250 ) (4,344 ) — (7,594 ) Receipts of deferred purchase price on receivables under factoring arrangements — 358,995 — (358,995 ) — Other investing activities, net 967 286 — — 1,253 Net cash provided by (used in) investing activities 131,003 223,899 (130,160 ) (489,595 ) (264,853 ) CASH FLOWS FROM FINANCING ACTIVITIES: Purchase of treasury stock (291,813 ) — — — (291,813 ) Borrowings under revolving credit facilities 218,000 — 387,708 — 605,708 Repayments under revolving credit facilities (316,692 ) — (417,779 ) — (734,471 ) Repayments under term loans (8,750 ) — — — (8,750 ) Borrowings under receivables securitization facility — — 36,600 — 36,600 Repayments under receivables securitization facility — — (146,600 ) — (146,600 ) Payment of notes issued and assumed debt from acquisitions (19,123 ) — — — (19,123 ) Repayments of other debt, net (749 ) (2,185 ) (30,988 ) — (33,922 ) Other financing activities, net 2,309 — (10,607 ) — (8,298 ) Investment and intercompany note activity with parent — (34,026 ) (96,574 ) 130,600 — Dividends — (449,163 ) — 449,163 — Net cash used in financing activities (416,818 ) (485,374 ) (278,240 ) 579,763 (600,669 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — 1,073 (1,977 ) — (904 ) Net increase (decrease) in cash, cash equivalents and restricted cash 214,843 15,041 (32,277 ) — 197,607 Cash, cash equivalents and restricted cash of continuing operations, beginning of period 25,633 29,285 282,332 — 337,250 Cash, cash equivalents and restricted cash of continuing and discontinued operations, end of period 240,476 44,326 250,055 — 534,857 Less: Cash and cash equivalents of discontinued operations, end of period — — 6,470 — 6,470 Cash, cash equivalents and restricted cash, end of period $ 240,476 $ 44,326 $ 243,585 $ — $ 528,387 (1) Restricted cash is only included in the condensed consolidating financial information of the Non-Guarantors LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors (1) Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 481,138 $ 277,595 $ 111,213 $ (159,207 ) $ 710,739 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (848 ) (136,033 ) (113,146 ) — (250,027 ) Proceeds from disposals of property, plant and equipment — 22,393 5,266 — 27,659 Investment and intercompany note activity with subsidiaries (97,261 ) — — 97,261 — Return of investment in subsidiaries 143,524 — — (143,524 ) — Acquisitions, net of cash and restricted cash acquired — (8,217 ) (1,206,778 ) — (1,214,995 ) Investments in unconsolidated subsidiaries — (12,216 ) (48,084 ) — (60,300 ) Receipts of deferred purchase price on receivables under factoring arrangements — 317,091 36,991 (317,091 ) 36,991 Other investing activities, net 887 180 666 — 1,733 Net cash provided by (used in) investing activities 46,302 183,198 (1,325,085 ) (363,354 ) (1,458,939 ) CASH FLOWS FROM FINANCING ACTIVITIES: Debt issuance costs (5,434 ) — (15,694 ) — (21,128 ) Proceeds from issuance of Euro Notes (2026/28) — — 1,232,100 — 1,232,100 Purchase of treasury stock (60,000 ) — — — (60,000 ) Borrowings under revolving credit facilities 765,632 — 901,693 — 1,667,325 Repayments under revolving credit facilities (884,863 ) — (644,107 ) — (1,528,970 ) Repayments under term loans (354,800 ) — — — (354,800 ) Borrowings under receivables securitization facility — — 10,120 — 10,120 Repayments under receivables securitization facility — — (120 ) — (120 ) Payment of notes issued and assumed debt from acquisitions — — (54,888 ) — (54,888 ) Repayments of other debt, net (385 ) (3,636 ) (7,709 ) — (11,730 ) Other financing activities, net 3,683 — 1,403 — 5,086 Investment and intercompany note activity with parent — (68,435 ) 165,696 (97,261 ) — Dividends — (392,883 ) (226,939 ) 619,822 — Net cash (used in) provided by financing activities (536,167 ) (464,954 ) 1,361,555 522,561 882,995 Effect of exchange rate changes on cash, cash equivalents and restricted cash — (1,685 ) (75,626 ) — (77,311 ) Net (decrease) increase in cash, cash equivalents and restricted cash (8,727 ) (5,846 ) 72,057 — 57,484 Cash, cash equivalents and restricted cash, beginning of period 34,360 35,131 210,275 — 279,766 Cash, cash equivalents and restricted cash, end of period $ 25,633 $ 29,285 $ 282,332 $ — $ 337,250 (1) Restricted cash is only included in the condensed consolidating financial information of the Non-Guarantors LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 243,011 $ 186,459 $ 95,617 $ (6,187 ) $ 518,900 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (648 ) (87,102 ) (91,340 ) — (179,090 ) Proceeds from disposals of property, plant and equipment — 6,490 2,217 — 8,707 Investment and intercompany note activity with subsidiaries 57,735 — — (57,735 ) — Acquisitions, net of cash and restricted cash acquired — (335,582 ) (177,506 ) — (513,088 ) Proceeds from disposals of businesses — 305,740 (4,443 ) — 301,297 Investments in unconsolidated subsidiaries — (2,750 ) (4,914 ) — (7,664 ) Receipts of deferred purchase price on receivables under factoring arrangements (1) — 294,925 — (294,925 ) — Other investing activities, net — — 5,243 — 5,243 Net cash provided by (used in) investing activities 57,087 181,721 (270,743 ) (352,660 ) (384,595 ) CASH FLOWS FROM FINANCING ACTIVITIES: Debt issuance costs (4,267 ) — — — (4,267 ) Borrowings under revolving credit facilities 558,000 — 281,171 — 839,171 Repayments under revolving credit facilities (824,862 ) — (121,615 ) — (946,477 ) Repayments under term loans (27,884 ) — — — (27,884 ) Borrowings under receivables securitization facility — — 11,245 — 11,245 Repayments under receivables securitization facility — — (11,245 ) — (11,245 ) (Repayments) borrowings of other debt, net (1,700 ) (1,318 ) 22,724 — 19,706 Other financing activities, net 1,945 (1,336 ) 6,575 — 7,184 Investment and intercompany note activity with parent — (65,498 ) 7,763 57,735 — Dividends — (301,112 ) — 301,112 — Net cash (used in) provided by financing activities (298,768 ) (369,264 ) 196,618 358,847 (112,567 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — 706 22,806 — 23,512 Net increase (decrease) in cash, cash equivalents and restricted cash 1,330 (378 ) 44,298 — 45,250 Cash, cash equivalents and restricted cash of continuing operations, beginning of period 33,030 35,360 159,010 — 227,400 Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period — 149 6,967 — 7,116 Cash, cash equivalents and restricted cash of continuing and discontinued operations, beginning of period 33,030 35,509 165,977 — 234,516 Cash, cash equivalents and restricted cash, end of period $ 34,360 $ 35,131 $ 210,275 $ — $ 279,766 (1) Reflects the impact of adopting ASU 2016-15

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts and Reserves (Notes)	12 Months Ended
	Dec. 31, 2019
Schedule II - Valuation and Qualifying Accounts and Reserves [Abstract]
Valuation Allowances and Reserves, Balance	EXHIBITS, FINANCIAL STATEMENT SCHEDULES (a)(1) Financial Statements Reference is made to the information set forth in Part II, Item 8 of this Annual Report on Form 10-K, which information is incorporated herein by reference. (a)(2) Financial Statement Schedules Other than as set forth below, all schedules for which provision is made in the applicable accounting regulations of the SEC have been omitted because they are not required under the related instructions, are not applicable, or the information has been provided in the consolidated financial statements or the notes thereto. Schedule II—Valuation and Qualifying Accounts and Reserves (in thousands) Description Balance at Additions Deductions Acquisitions and Other Balance at End ALLOWANCE FOR DOUBTFUL ACCOUNTS: Year ended December 31, 2019 $ 57,207 $ 12,088 $ (18,308 ) $ 1,698 $ 52,685 Year ended December 31, 2018 57,609 13,970 (15,945 ) 1,573 57,207 Year ended December 31, 2017 45,608 15,387 (13,012 ) 9,626 57,609 ALLOWANCE FOR ESTIMATED RETURNS, DISCOUNTS & ALLOWANCES: (1) Year ended December 31, 2017 $ 38,345 $ 1,885,517 $ (1,884,250 ) $ 2,713 $ 42,325 (1) Subsequent to our adoption of ASC 606 in 2018, we present a refund liability and a returns asset within the Consolidated Balance Sheet, whereas in periods prior to adoption, we presented the estimated margin impact of expected returns as a contra-asset within accounts receivable. See Note 5, "Revenue Recognition ," to the consolidated financial statements in Part II, Item 8 of this Annual Report on Form 10-K for additional information.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Noncontrolling Interest Disclosure [Text Block]	In July 2019, we purchased substantially all of the noncontrolling interest of a subsidiary acquired in connection with the Stahlgruber acquisition for a purchase price of $19 million , which included the issuance of $14 million of notes payable. This purchase resulted in a net decrease to Noncontrolling interest of $10 million and a decrease to Additional paid-in capital of $9 million in our consolidated financial statements as of December 31, 2019 . In December 2019, we modified the shares of a noncontrolling interest of a subsidiary acquired in connection with the Stahlgruber acquisition and issued new redeemable shares to the minority shareholder. The new redeemable shares contain (i) a put option for all noncontrolling interest shares at a fixed price of $24 million ( €21 million ) for the minority shareholder exercisable in the fourth quarter of 2023, (ii) a call option for all noncontrolling interest shares at a fixed price of $26 million ( €23 million ) for the Company exercisable beginning in the first quarter of 2026 through the end of the fourth quarter of 2027, and (iii) a guaranteed dividend to be paid quarterly to the minority shareholder through the fourth quarter of 2023. The new redeemable shares do not provide the minority shareholder with rights to participate in the profits and losses of the subsidiary prior to the exercise date of the put option. As the put option is outside the control of the Company, we recorded a $24 million Redeemable noncontrolling interest at the put option's redemption value outside of permanent equity on our Consolidated Balance Sheets. This transaction also resulted in a decrease to Additional paid-in capital of $18 million , a decrease to Noncontrolling interest of $12 million , and a $7 million dividend payable ( $2 million recorded in Other current liabilities and $5 million in Other noncurrent liabilities) in our consolidated financial statements as of December 31, 2019 . The redeemable noncontrolling interest and dividend payable represent noncash financing activities in our Consolidated Statements of Cash Flows.
Commitments and Contingencies, Policy [Policy Text Block]	Litigation and Related Contingencies We have certain contingencies resulting from litigation, claims and other commitments and are subject to a variety of environmental and pollution control laws and regulations incident to the ordinary course of business. We currently expect that the resolution of such contingencies will not materially affect our financial position, results of operations or cash flows.
Schedule of Goodwill [Table Text Block]	Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 )
Rental Expense [Policy Text Block]	Rental Expense We recognize rental expense on a straight-line basis over the respective lease terms, including reasonably assured renewal periods, for all of our operating leases.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation For most of our foreign operations, the local currency is the functional currency. Assets and liabilities are translated into U.S. dollars at the period-ending exchange rate. Statements of Income amounts are translated to U.S. dollars using monthly average exchange rates during the period. Translation gains and losses are reported as a component of Accumulated other comprehensive income (loss) in stockholders' equity.
Income Tax, Policy [Policy Text Block]	Income Taxes Current income taxes are provided on income reported for financial reporting purposes, adjusted for transactions that do not enter into the computation of income taxes payable in the same year. Deferred income taxes have been provided to show the effect of temporary differences between the tax bases of assets and liabilities and their reported amounts in the financial statements. A valuation allowance is provided for deferred tax assets if it is more likely than not that these items will either expire before we are able to realize their benefit or that future deductibility is uncertain. Provision is made for taxes on undistributed earnings of foreign subsidiaries and related companies to the extent that such earnings are not deemed to be permanently invested. We recognize the benefits of uncertain tax positions taken or expected to be taken in tax returns in the provision for income taxes only for those positions that are more likely than not to be realized. We follow a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. We consider many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. Our policy is to include interest and penalties associated with income tax obligations in income tax expense. During 2017, new tax legislation was signed into law making significant changes to the Internal Revenue Code. See Note 15, "Income Taxes" for further information regarding the new tax law.
Stockholders' Equity, Policy [Policy Text Block]	Stockholders' Equity Treasury Stock On October 25, 2018, our Board of Directors authorized a stock repurchase program under which we were authorized to purchase up to $500 million of our common stock from time to time through October 25, 2021. Repurchases under the program may be made in the open market or in privately negotiated transactions, with the amount and timing of repurchases depending on market conditions and corporate needs. The repurchase program does not obligate us to acquire any specific number of shares and may be suspended or discontinued at any time. Delaware law imposes restrictions on stock repurchases. On October 25, 2019, our Board of Directors authorized an increase to our existing stock repurchase program under which the Company may purchase up to an additional $500 million of our common stock from time to time through October 25, 2022; this extended date also applies to the original repurchase program. With the increase, the Board of Directors has authorized a total of $1.0 billion of common stock repurchases. During the year ended December 31, 2019 , we repurchased 10.9 million shares of common stock for an aggregate price of $292 million . During 2018, we repurchased 2.3 million shares of common stock for an aggregate price of $60 million . As of December 31, 2019 , there was $648 million of remaining capacity under our repurchase program. Repurchased shares are accounted for as treasury stock using the cost method.
Self Insurance Reserve [Policy Text Block]	Self-Insurance Reserves We self-insure a portion of employee medical benefits under the terms of our employee health insurance program. We purchase certain stop-loss insurance to limit our liability exposure. We also self-insure a portion of our property and casualty risk, which includes automobile liability, general liability, directors and officers liability, workers' compensation, and property coverage, under deductible insurance programs. The insurance premium costs are expensed over the contract periods. A reserve for liabilities associated with these losses is established for claims filed and claims incurred but not yet reported based upon our estimate of ultimate cost, which is calculated using analysis of historical data. We monitor new claims and claim development as well as trends related to the claims incurred but not reported in order to assess the adequacy of our insurance reserves. Total self-insurance reserves were $109 million and $105 million , of which $54 million and $52 million was classified as current, as of December 31, 2019 and 2018 , respectively, and are classified as Other accrued expenses on the Consolidated Balance Sheets. The remaining balances of self-insurance reserves are classified as Other noncurrent liabilities, which reflects management's estimates of when claims will be paid. We had outstanding letters of credit of $69 million and $65 million at December 31, 2019 and 2018 , respectively, to guarantee self-insurance claims payments. While we do not expect the amounts ultimately paid to differ significantly from our estimates, our insurance reserves and corresponding expenses could be affected if future claims experience differs significantly from historical trends and assumptions.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Net Assets Held for Sale During the year ended December 31, 2019, we committed to plans to sell certain businesses in our North America and Europe segments. As a result, these businesses were classified as net assets held for sale and were required to be adjusted to the lower of fair value less cost to sell or carrying value, resulting in impairment charges totaling $47 million for the year ended December 31, 2019 (presented in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income). In the third quarter of 2019, we completed the sales of two of these businesses, our aviation business in North America and a wholesale business in Bulgaria. The disposed businesses were immaterial, generating annualized revenue of approximately $55 million prior to the divestiture. Excluding the Stahlgruber Czech Republic wholesale business discussed in Note 3, "Discontinued Operations ," as of December 31, 2019, there were $19 million of assets held for sale, including $5 million of goodwill that was reclassified as held for sale related to our Europe segment, and $9 million of liabilities held for sale, which were recorded within Prepaid expenses and other current assets and Other current liabilities, respectively, on the Consolidated Balance Sheets. We expect the remaining assets held for sale to be disposed of during the next twelve months. The assets held for sale generated annualized revenue of $87 million during the year ended December 31, 2019 . We are required to record net assets of our held for sale businesses at the lower of fair value less cost to sell or carrying value. Fair values were based on projected discounted cash flows and/or estimated selling prices. Management's assumptions for our discounted cash flow analysis of the businesses were based on projected revenues and profits, tax rates, capital expenditures, working capital requirements and discount rates. For businesses for which we utilized estimated selling prices to calculate the fair value, the inputs to our estimates included projected market multiples and any reasonable offers. Due to uncertainties in the estimation process, it is possible that actual results could differ from the estimates used in our analysis. The inputs utilized in the fair value estimates are classified as Level 3 within the fair value hierarchy. The fair values of the net assets were measured on a non-recurring basis as of December 31, 2019 . Impairment of Long-Lived Assets Long-lived assets are reviewed for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. If such review indicates that the carrying amount of long-lived assets is not recoverable, the carrying amount of such assets is reduced to fair value. Other than the impairment charges recorded upon the classification of certain businesses in our North America and Europe segments as held for sale discussed in the "Net Assets Held for Sale" section above, there were no material adjustments to the carrying value of long-lived assets during the years ended December 31, 2019 , 2018 or 2017 .
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentration of credit risk consist primarily of cash and cash equivalents and accounts receivable. We control our exposure to credit risk associated with these instruments by (i) placing our cash and cash equivalents with several major financial institutions; (ii) holding high-quality financial instruments; and (iii) maintaining strict policies over credit extension that include credit evaluations, credit limits and monitoring procedures. In addition, our overall credit risk with respect to accounts receivable is limited to some extent because our customer base is composed of a large number of geographically diverse customers.
Consolidation, Policy [Policy Text Block]	Principles of Consolidation The accompanying consolidated financial statements include the accounts of LKQ Corporation and its subsidiaries. All intercompany transactions and accounts have been eliminated.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates In preparing our financial statements in conformity with accounting principles generally accepted in the United States of America, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Cost of Goods Sold [Policy Text Block]	Cost of Goods Sold Our cost of goods sold includes: the price we pay for inventory, net of vendor discounts, rebates or other incentives; inbound freight and other transportation costs to bring inventory into our facilities; and overhead costs related to purchasing, warehousing and transporting our products from our distribution warehouses to our selling locations. For our salvage, remanufactured, and refurbished products, our cost of goods sold also includes direct and indirect labor, equipment costs, depreciation, and other overhead to transform inventory into finished products suitable for sale. Cost of goods sold also includes expenses for our service-type warranties and for our assurance-type warranty programs. See Note 5, "Revenue Recognition" for additional information related to our warranty programs.
Selling, General and Administrative Expenses, Policy [Policy Text Block]	Selling, General and Administrative Expenses
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents include cash on hand, operating accounts, and deposits readily convertible to known amounts of cash. Restricted cash includes cash for which the Company's ability to withdraw funds at any time is contractually limited. As of both December 31, 2019 and 2018, we had $5 million of restricted cash that is recorded in Other noncurrent assets on the Consolidated Balance Sheets.
Receivables and Allowance for Doubtful Accounts	Receivables and Allowance for Doubtful Accounts In the normal course of business, we extend credit to customers after a review of each customer's credit history. We recorded a reserve for uncollectible accounts of approximately $53 million and $57 million at December 31, 2019 and 2018 , respectively. The reserve is based upon the aging of the accounts receivable, our assessment of the collectability of specific customer accounts and historical experience. Receivables are written off once collection efforts have been exhausted. Recoveries of receivables previously written off are recorded when received.
Inventory	Inventories We classify our inventory into the following categories: (i) aftermarket and refurbished products, (ii) salvage and remanufactured products, and (iii) manufactured products. An aftermarket product is a new vehicle product manufactured by a company other than the original equipment manufacturer. For all of our aftermarket products, excluding our aftermarket automotive glass products, cost is established based on the average price we pay for parts; for our aftermarket automotive glass products inventory, cost is established using the first-in first-out method. Inventory cost for all of our aftermarket products includes expenses incurred for freight in and overhead costs; for items purchased from foreign companies, import fees and duties and transportation insurance are also included. Refurbished products are parts that require cosmetic repairs, such as wheels, bumper covers and lights; LKQ will apply new parts, products or materials to these parts in order to produce the finished product. Refurbished inventory cost is based upon the average price we pay for cores. The cost of our refurbished inventory also includes expenses incurred for freight in, labor and other overhead costs. A salvage product is a recycled vehicle part suitable for sale as a replacement part. Cost is established based upon the price we pay for a vehicle, including auction, storage and towing fees, as well as expenditures for buying and dismantling the vehicle. Inventory carrying value is determined using the average cost to sales percentage at each of our facilities and applying that percentage to the facility's inventory at expected selling prices, the assessment of which incorporates the sales probability based on a part's number of days in stock and historical demand. The average cost to sales percentage is derived from each facility's historical profitability for salvage vehicles. Remanufactured products are used parts that have been inspected, rebuilt, or reconditioned to restore functionality and performance, such as remanufactured engines and transmissions. Remanufactured inventory cost is based upon the price paid for cores, which are recycled automotive parts that are not suitable for sale as a replacement part without further processing, and also includes expenses incurred for freight in, direct manufacturing costs and other overhead costs. A manufactured product is a new vehicle product. Manufactured product inventory can be a raw material, work-in-process or finished good. Cost is established using the first-in first-out method. For all inventory, carrying value is recorded at the lower of cost or net realizable value. Net realizable value can be influenced by current anticipated demand. If actual demand is lower than our estimates, additional reductions to inventory carrying value would be necessary in the period such determination is made. Inventories consist of the following (in thousands): December 31, 2019 2018 Aftermarket and refurbished products $ 2,297,895 $ 2,309,458 Salvage and remanufactured products 447,908 503,199 Manufactured products 26,974 23,418 Total inventories $ 2,772,777 $ 2,836,075 Aftermarket and refurbished products and salvage and remanufactured products are primarily composed of finished goods. As of December 31, 2019 , manufactured products inventory was composed of $17 million of raw materials, $3 million of work in process, and $6 million of finished goods. As of December 31, 2018 , manufactured products inventory was composed of $17 million of raw materials, $2 million of work in process, and $4 million of finished goods.
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment are recorded at cost less accumulated depreciation. Expenditures for major additions and improvements that extend the useful life of the related asset are capitalized. As property, plant and equipment are sold or retired, the applicable cost and accumulated depreciation are removed from the accounts and any resulting gain or loss thereon is recognized. Construction in progress consists primarily of building and land improvements at our existing facilities. Depreciation is calculated using the straight-line method over the estimated useful lives or, in the case of leasehold improvements, the term of the related lease and reasonably assured renewal periods, if shorter. Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162 We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold in the Consolidated Statements of Income. We report depreciation expense resulting from restructuring programs in Restructuring and acquisition related expenses. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $174 million , $157 million , and $129 million , respectively.
Intangible Assets	Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 ) The components of other intangibles, net are as follows (in thousands): December 31, 2019 December 31, 2018 Intangible assets subject to amortization $ 769,038 $ 847,452 Indefinite-lived intangible assets Trademarks 81,300 81,300 Total $ 850,338 $ 928,752 The components of intangible assets subject to amortization are as follows (in thousands): December 31, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 488,945 $ (119,957 ) $ 368,988 $ 496,166 $ (94,451 ) $ 401,715 Customer and supplier relationships 580,052 (321,650 ) 258,402 593,517 (247,464 ) 346,053 Software and other technology related assets 248,941 (108,979 ) 139,962 176,118 (79,283 ) 96,835 Covenants not to compete 13,435 (11,749 ) 1,686 13,344 (10,495 ) 2,849 Total $ 1,331,373 $ (562,335 ) $ 769,038 $ 1,279,145 $ (431,693 ) $ 847,452 The components of intangible assets acquired as part of our acquisitions in 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Trade names and trademarks $ 173,946 $ 8,870 $ 182,816 Customer and supplier relationships 77,980 20,779 98,759 Software and other technology related assets 33,329 376 33,705 Covenants not to compete — — — Total $ 285,255 $ 30,025 $ 315,280 (1) The amounts recorded during the year ended December 31, 2018 exclude amounts related to our 2017 acquisitions, including a $5 million adjustment to increase other intangibles related to our 2017 acquisition of Warn. The weighted-average amortization periods for our intangible assets acquired during the years ended December 31, 2018 and 2017 are as follows (in years): Year Ended Year Ended December 31, 2018 December 31, 2017 Stahlgruber Other Acquisitions Total All Acquisitions Trade names and trademarks 18.0 10.0 17.6 11.2 Customer and supplier relationships 3.0 7.9 4.0 18.6 Software and other technology related assets 5.2 6.5 5.2 11.1 Covenants not to compete — — — 4.4 Total acquired finite-lived intangible assets 12.4 8.5 12.0 16.5 Our estimated useful lives for our finite-lived intangible assets are as follows: Method of Amortization Useful Life Trade names and trademarks Straight-line 4-30 years Customer and supplier relationships Accelerated 3-20 years Software and other technology related assets Straight-line 3-15 years Covenants not to compete Straight-line 2-5 years Amortization expense for intangibles was $140 million , $137 million , and $102 million during the years ended December 31, 2019 , 2018 , and 2017 , respectively. Estimated amortization expense for each of the five years in the period ending December 31, 2024 is $120 million , $93 million , $80 million , $70 million and $64 million , respectively.
Equity Method Investments [Policy Text Block]	Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $139 million and $179 million as of December 31, 2019 and December 31, 2018 , respectively. Europe Segment Our investment in unconsolidated subsidiaries in Europe was $122 million and $163 million as of December 31, 2019 and December 31, 2018 , respectively. We recorded equity in losses of $33 million and $65 million during the years ended December 31, 2019 and December 31, 2018 , respectively, and equity in earnings of $6 million during the year ended December 31, 2017 related to our investments in unconsolidated subsidiaries in our Europe segment, mainly related to our investment in Mekonomen. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen for an aggregate purchase price of $181 million . In October 2018, we acquired an additional $48 million of equity in Mekonomen at a discounted share price as part of its rights issue, increasing our equity interest to 26.6% . We are accounting for our interest in Mekonomen using the equity method of accounting, as our investment gives us the ability to exercise significant influence, but not control, over the investee. As of December 31, 2019, our share of the book value of Mekonomen's net assets exceeded the book value of our investment in Mekonomen by $5 million ; this difference is primarily related to Mekonomen's Accumulated Other Comprehensive Income balance as of our acquisition date in 2016. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. During the years ended December 31, 2019 and 2018, we recognized other-than-temporary impairment charges of $40 million and $71 million , respectively, which represented the difference in the carrying value and the fair value of our investment in Mekonomen. The fair value of our investment in Mekonomen was determined using the Mekonomen share prices as of the dates of our impairment tests. The impairment charges are recorded in Equity in (losses) earnings of unconsolidated subsidiaries in our Consolidated Statements of Income. In May 2018, we received a cash dividend of $8 million (SEK 67 million ) related to our investment in Mekonomen. Mekonomen announced in February 2019 that the Mekonomen Board of Directors proposed no dividend payment in 2019. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at December 31, 2019 was $149 million (using the Mekonomen share price of SEK 93 as of December 31, 2019 ) compared to a carrying value of $111 million . In 2018, we participated in a rights issue with preferential rights for Mekonomen's existing shareholders, who were given the right to subscribe for four new Mekonomen shares per seven existing owned shares at a discounted share price. The rights issue represented a derivative instrument related to our right to acquire Mekonomen shares at a discount. We measured the derivative instrument at fair value, and we recorded a derivative loss of $5 million in Interest income and other income, net in the Consolidated Statements of Income in October 2018 upon the settlement of the derivative instrument. North America Segment Our investment in unconsolidated subsidiaries in the North America segment was $18 million and $16 million as of December 31, 2019 and December 31, 2018 , respectively. The equity in earnings for the North America equity investments was $1 million for the year ended December 31, 2019 and an immaterial amount for the year ended December 31, 2018 ; we did not have any equity in earnings in the North America segment in 2017.
Warranty Reserve	Warranty Reserve Some of our salvage mechanical products are sold with a standard six month warranty against defects. Additionally, some of our remanufactured engines are sold with a standard three year warranty against defects. We also provide a limited lifetime warranty for certain of our aftermarket products. These assurance-type warranties are not considered a separate performance obligation, and thus no transaction price is allocated to them. We record the warranty costs in Cost of goods sold in our Consolidated Statements of Income. Our warranty reserve is calculated using historical claim information to project future warranty claims activity and is recorded within Other accrued expenses and Other noncurrent liabilities on our Consolidated Balance Sheets based on the expected timing of the related payments. The changes in the warranty reserve are as follows (in thousands): Balance as of January 1, 2018 $ 23,151 Warranty expense 43,682 Warranty claims (43,571 ) Balance as of December 31, 2018 23,262 Warranty expense 58,253 Warranty claims (56,074 ) Balance as of December 31, 2019 $ 25,441
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adoption of New Lease Standard In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2016-02, "Leases" ("ASU 2016-02"), which represents the FASB Accounting Standards Codification Topic 842 ("ASC 842"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the Consolidated Balance Sheets and disclosing key information about leasing arrangements. The main difference between the prior standard and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under the prior standard. We adopted the standard in the first quarter of 2019 using the modified retrospective approach and elected the transition package of practical expedients permitted within the new standard, which, among other things, allows us to carryforward the historical lease classification. For leases with a term of 12 months or less, we elected the short-term lease exemption, which allowed us to not recognize right-of-use assets or lease liabilities for qualifying leases existing at transition and new leases we may enter into in the future. Additionally, we adopted the practical expedient to combine lease and non-lease components. As of January 1, 2019, we recorded both an operating lease asset and operating lease liability of $1.3 billion . The preexisting deferred rent liability balances from the historical straight-line treatment of operating leases was reclassified as a reduction of the lease asset upon adoption. The adoption of the standard did not materially affect our Consolidated Statements of Income or Statements of Cash Flows as operating lease payments will still be an operating cash outflow and capital lease payments will still be a financing cash outflow. The new standard did not have a material impact on our liquidity. The standard will have no impact on our debt covenant compliance under our current agreements as the covenant calculations are based on the prior lease accounting rules. Other Recently Adopted Accounting Pronouncements During the first quarter of 2019, we adopted ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities" ("ASU 2017-12"), which amends the hedge accounting recognition and presentation requirements in ASC 815 ("Derivatives and Hedging"). ASU 2017-12 significantly alters the hedge accounting model by making it easier for an entity to achieve and maintain hedge accounting and provides for accounting that better reflects an entity's risk management activities. We adopted the provisions of ASU 2017-12 by applying a modified retrospective approach to existing hedging relationships as of the adoption date. The adoption of ASU 2017-12 did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-13, "Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurement" ("ASU 2018-13"), which removes, modifies, and adds certain disclosure requirements in ASC 820. ASU 2018-13 is effective for fiscal years and interim periods beginning after December 15, 2019; early adoption is permitted. We are in the process of evaluating the impact of this standard on our disclosures but do not currently believe that it will have a material impact. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"), and in November 2018 issued a subsequent amendment, ASU 2018-19, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses" ("ASU 2018-19"). ASU 2016-13 significantly changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. ASU 2016-13 will replace today’s “incurred loss” approach with an “expected loss” model for instruments measured at amortized cost. ASU 2018-19 will affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope of this amendment that represent the contractual right to receive cash. ASU 2016-13 and ASU 2018-19 should be applied on either a prospective transition or modified-retrospective approach depending on the subtopic. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods therein. We do not anticipate the adoption of this accounting standard will have a material impact on our consolidated financial statements.

Summary of Signficant Accountin

Summary of Signficant Accounting Policies Recent Accounting Pronouncements (Policies)	12 Months Ended
	Dec. 31, 2019
Adoption of New Lease Standard [Abstract]
Cumulative Effect of Adoption of ASC 842 on Consolidated Financial Statements [Policy Text Block]	In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2016-02, "Leases" ("ASU 2016-02"), which represents the FASB Accounting Standards Codification Topic 842 ("ASC 842"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the Consolidated Balance Sheets and disclosing key information about leasing arrangements. The main difference between the prior standard and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under the prior standard. We adopted the standard in the first quarter of 2019 using the modified retrospective approach and elected the transition package of practical expedients permitted within the new standard, which, among other things, allows us to carryforward the historical lease classification. For leases with a term of 12 months or less, we elected the short-term lease exemption, which allowed us to not recognize right-of-use assets or lease liabilities for qualifying leases existing at transition and new leases we may enter into in the future. Additionally, we adopted the practical expedient to combine lease and non-lease components. As of January 1, 2019, we recorded both an operating lease asset and operating lease liability of $1.3 billion . The preexisting deferred rent liability balances from the historical straight-line treatment of operating leases was reclassified as a reduction of the lease asset upon adoption. The adoption of the standard did not materially affect our Consolidated Statements of Income or Statements of Cash Flows as operating lease payments will still be an operating cash outflow and capital lease payments will still be a financing cash outflow. The new standard did not have a material impact on our liquidity. The standard will have no impact on our debt covenant compliance under our current agreements as the covenant calculations are based on the prior lease accounting rules.

Revenue Recognition Revenue R_2

Revenue Recognition Revenue Recognition (Policies)	12 Months Ended
	Dec. 31, 2019
Revenue Recognition [Abstract]
Revenue from Contract with Customer [Text Block]	Revenue Recognition The majority of our revenue is derived from the sale of vehicle parts. We recognize revenue when the products are shipped to, delivered to or picked up by customers, which is the point when title has transferred and risk of ownership has passed. Sources of Revenue We report our revenue in two categories: (i) parts and services and (ii) other. The following table sets forth our revenue by category, with our parts and services revenue further disaggregated by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 North America $ 4,600,903 $ 4,558,220 $ 4,278,531 Europe 5,817,547 5,202,231 3,628,906 Specialty 1,459,396 1,472,956 1,301,197 Parts and services 11,877,846 11,233,407 9,208,634 Other 628,263 643,267 528,275 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909 Parts and Services Our parts revenue is generated from the sale of vehicle products including replacement parts, components and systems used in the repair and maintenance of vehicles and specialty products and accessories to improve the performance, functionality and appearance of vehicles. Services revenue includes (i) additional services that are generally billed concurrently with the related product sales, such as the sale of service-type warranties, (ii) fees for admission to our self service yards, and (iii) diagnostic and repair services. In North America, our vehicle replacement products include sheet metal collision parts such as doors, hoods, and fenders; bumper covers; head and tail lamps; automotive glass products such as windshields; mirrors and grilles; wheels; and large mechanical items such as engines and transmissions. In Europe, our products include a wide variety of small mechanical products such as brake pads, discs and sensors; clutches; electrical products such as spark plugs and batteries; steering and suspension products; filters; and oil and automotive fluids. In our Specialty operations, we serve six product segments: truck and off-road; speed and performance; RV; towing; wheels, tires and performance handling; and miscellaneous accessories. Our service-type warranties typically have service periods ranging from 6 months to 36 months . Under FASB Accounting Standards Codification Topic ASC 606 ("ASC 606"), proceeds from these service-type warranties are deferred at contract inception and amortized on a straight-line basis to revenue over the contract period. The changes in deferred service-type warranty revenue are as follows (in thousands): Balance as of January 1, 2018 $ 19,465 Additional warranty revenue deferred 38,736 Warranty revenue recognized (34,195 ) Balance as of December 31, 2018 24,006 Additional warranty revenue deferred 43,381 Warranty revenue recognized (40,320 ) Balance as of December 31, 2019 $ 27,067 Other Revenue Revenue from other sources includes sales of scrap and precious metals (platinum, palladium, and rhodium), bulk sales to mechanical manufacturers (including cores) and sales of aluminum ingots and sows from our furnace operations. We derive scrap metal and other precious metals from several sources, including vehicles that have been used in both our wholesale and self service recycling operations and from OEMs and other entities that contract with us for secure disposal of "crush only" vehicles. The sale of hulks in our wholesale and self service recycling operations represents one performance obligation, and revenue is recognized based on a price per weight when the customer (processor) collects the scrap. Some adjustments may occur when the customer weighs the scrap at their location, and revenue is adjusted accordingly. Revenue by Geographic Area See Note 16, "Segment and Geographic Information" for information related to our revenue by geographic region. Variable Consideration The amount of revenue ultimately received from the customer can vary due to variable consideration including returns, discounts, rebates, refunds, credits, price concessions, incentives, performance bonuses, or other similar items. Under ASC 606 we are required to select the “expected value method” or the “most likely amount” method in order to estimate variable consideration. We utilize both methods in practice depending on the type of variable consideration, with contemplation of any expected reversals in revenue. We recorded a refund liability and return asset for expected returns of $97 million and $52 million , respectively, as of December 31, 2019 , and $105 million and $56 million , respectively, as of December 31, 2018 . The refund liability is presented separately on the balance sheet within current liabilities while the return asset is presented within Prepaid expenses and other current assets. Other types of variable consideration consist primarily of discounts, volume rebates, and other customer sales incentives which are recorded in Receivables, net on the Consolidated Balance Sheets. We recorded a reserve for our variable consideration of $108 million and $103 million as of December 31, 2019 and December 31, 2018 , respectively. While other customer incentive programs exist, we characterize them as material rights in the context of our sales transactions. We consider these programs to be immaterial to our consolidated financial statements. Contract Costs Under ASC 340, "Other Assets and Deferred Costs," we have elected to recognize incremental costs of obtaining a contract (commissions earned by our sales representatives on product sales) as an expense when incurred, as we believe the amortization period of the asset would be one year or less due to the short-term nature of our contracts. Sales Taxes We present taxes assessed by governmental authorities collected from customers on a net basis. Therefore, the taxes are excluded from revenue in our Consolidated Statements of Income and are shown as a current liability on our Consolidated Balance Sheets until remitted.
Revenue [Policy Text Block]	Revenue Recognition The majority of our revenue is derived from the sale of vehicle parts. We recognize revenue when the products are shipped to, delivered to or picked up by customers, which is the point when title has transferred and risk of ownership has passed. Sources of Revenue We report our revenue in two categories: (i) parts and services and (ii) other. The following table sets forth our revenue by category, with our parts and services revenue further disaggregated by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 North America $ 4,600,903 $ 4,558,220 $ 4,278,531 Europe 5,817,547 5,202,231 3,628,906 Specialty 1,459,396 1,472,956 1,301,197 Parts and services 11,877,846 11,233,407 9,208,634 Other 628,263 643,267 528,275 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909 Parts and Services Our parts revenue is generated from the sale of vehicle products including replacement parts, components and systems used in the repair and maintenance of vehicles and specialty products and accessories to improve the performance, functionality and appearance of vehicles. Services revenue includes (i) additional services that are generally billed concurrently with the related product sales, such as the sale of service-type warranties, (ii) fees for admission to our self service yards, and (iii) diagnostic and repair services. In North America, our vehicle replacement products include sheet metal collision parts such as doors, hoods, and fenders; bumper covers; head and tail lamps; automotive glass products such as windshields; mirrors and grilles; wheels; and large mechanical items such as engines and transmissions. In Europe, our products include a wide variety of small mechanical products such as brake pads, discs and sensors; clutches; electrical products such as spark plugs and batteries; steering and suspension products; filters; and oil and automotive fluids. In our Specialty operations, we serve six product segments: truck and off-road; speed and performance; RV; towing; wheels, tires and performance handling; and miscellaneous accessories. Our service-type warranties typically have service periods ranging from 6 months to 36 months . Under FASB Accounting Standards Codification Topic ASC 606 ("ASC 606"), proceeds from these service-type warranties are deferred at contract inception and amortized on a straight-line basis to revenue over the contract period. The changes in deferred service-type warranty revenue are as follows (in thousands): Balance as of January 1, 2018 $ 19,465 Additional warranty revenue deferred 38,736 Warranty revenue recognized (34,195 ) Balance as of December 31, 2018 24,006 Additional warranty revenue deferred 43,381 Warranty revenue recognized (40,320 ) Balance as of December 31, 2019 $ 27,067 Other Revenue Revenue from other sources includes sales of scrap and precious metals (platinum, palladium, and rhodium), bulk sales to mechanical manufacturers (including cores) and sales of aluminum ingots and sows from our furnace operations. We derive scrap metal and other precious metals from several sources, including vehicles that have been used in both our wholesale and self service recycling operations and from OEMs and other entities that contract with us for secure disposal of "crush only" vehicles. The sale of hulks in our wholesale and self service recycling operations represents one performance obligation, and revenue is recognized based on a price per weight when the customer (processor) collects the scrap. Some adjustments may occur when the customer weighs the scrap at their location, and revenue is adjusted accordingly. Revenue by Geographic Area See Note 16, "Segment and Geographic Information" for information related to our revenue by geographic region. Variable Consideration The amount of revenue ultimately received from the customer can vary due to variable consideration including returns, discounts, rebates, refunds, credits, price concessions, incentives, performance bonuses, or other similar items. Under ASC 606 we are required to select the “expected value method” or the “most likely amount” method in order to estimate variable consideration. We utilize both methods in practice depending on the type of variable consideration, with contemplation of any expected reversals in revenue. We recorded a refund liability and return asset for expected returns of $97 million and $52 million , respectively, as of December 31, 2019 , and $105 million and $56 million , respectively, as of December 31, 2018 . The refund liability is presented separately on the balance sheet within current liabilities while the return asset is presented within Prepaid expenses and other current assets. Other types of variable consideration consist primarily of discounts, volume rebates, and other customer sales incentives which are recorded in Receivables, net on the Consolidated Balance Sheets. We recorded a reserve for our variable consideration of $108 million and $103 million as of December 31, 2019 and December 31, 2018 , respectively. While other customer incentive programs exist, we characterize them as material rights in the context of our sales transactions. We consider these programs to be immaterial to our consolidated financial statements. Contract Costs Under ASC 340, "Other Assets and Deferred Costs," we have elected to recognize incremental costs of obtaining a contract (commissions earned by our sales representatives on product sales) as an expense when incurred, as we believe the amortization period of the asset would be one year or less due to the short-term nature of our contracts. Sales Taxes

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Purchase Price Allocations For Acquisitions	The purchase price allocations for the acquisitions completed during the year ended December 31, 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Receivables $ 144,826 $ 19,171 $ 163,997 Receivable reserves (2,818 ) (918 ) (3,736 ) Inventories 380,238 14,021 394,259 Prepaid expenses and other current assets 10,970 1,851 12,821 Property , plant and equipment 271,292 5,711 277,003 Goodwill 908,253 64,637 972,890 Other intangibles 285,255 35,159 320,414 Other noncurrent assets 16,625 37 16,662 Deferred income taxes (78,130 ) (5,285 ) (83,415 ) Current liabilities assumed (346,788 ) (20,116 ) (366,904 ) Debt assumed (79,925 ) (4,875 ) (84,800 ) Other noncurrent liabilities assumed (2) (80,824 ) (10,306 ) (91,130 ) Noncontrolling interest (44,110 ) — (44,110 ) Contingent consideration liabilities — (3,107 ) (3,107 ) Other purchase price obligations (6,084 ) 3,623 (2,461 ) Stock issued (251,334 ) — (251,334 ) Notes issued — (11,347 ) (11,347 ) Gains on bargain purchases (3) — (2,418 ) (2,418 ) Settlement of other purchase price obligations (non-interest bearing) — 1,711 1,711 Cash used in acquisitions, net of cash and restricted cash acquired $ 1,127,446 $ 87,549 $ 1,214,995
Pro Forma Effect Of Businesses Acquired	The pro forma adjustments are based upon unaudited financial information of the acquired entities (in thousands): Year Ended December 31, 2019 2018 2017 Revenue, as reported $ 12,506,109 $ 11,876,674 $ 9,736,909 Revenue of purchased businesses for the period prior to acquisition: Stahlgruber — 815,405 1,756,893 Other acquisitions 24,614 164,133 448,721 Pro forma revenue $ 12,530,723 $ 12,856,212 $ 11,942,523 Income from continuing operations, as reported (1) $ 543,415 $ 487,565 $ 536,974 Income from continuing operations of purchased businesses for the period prior to acquisition, and pro forma purchase accounting adjustments: Stahlgruber 14,481 17,309 4,796 Other acquisitions 3,664 6,591 16,667 Acquisition related expenses, net of tax (2) 1,499 14,524 8,787 Pro forma income from continuing operations 563,059 525,989 567,224 Less: Net income (loss) attributable to continuing noncontrolling interest, as reported 2,800 3,050 (3,516 ) Less: Pro forma net income attributable to noncontrolling interest — 2,799 1,095 Pro forma income from continuing operations attributable to LKQ stockholders (3) $ 560,259 $ 520,140 $ 569,645

Discontinued Operations Discont

Discontinued Operations Discontinued Operations Income statement (Tables)	12 Months Ended
	Dec. 31, 2019
Disposal Groups, Including Discontinued Operations [Table Text Block]	The following table summarizes the operating results of the Company’s discontinued operations related to the sale described above for the years ended December 31, 2019, 2018 and 2017, as presented in Net income (loss) from discontinued operations in the Consolidated Statements of Income (in thousands): Year Ended December 31, 2019 (3) 2018 2017 Revenue $ — $ — $ 111,130 Cost of goods sold — — 100,084 Selling, general and administrative expenses 1,626 — 8,369 Operating (loss) income (1,626 ) — 2,677 Total other expense, net (1) — — 1,204 (Loss) income from discontinued operations before taxes (1,626 ) — 3,881 (Benefit) provision for income taxes (1,572 ) — 3,598 Equity in loss of unconsolidated subsidiaries — — (534 ) Loss from discontinued operations, net of tax (54 ) — (251 ) Loss on sale of discontinued operations, net of tax (2) — (4,397 ) (6,495 ) Net loss from discontinued operations $ (54 ) $ (4,397 ) $ (6,746 )

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Warranty Reserve	Warranty Reserve Some of our salvage mechanical products are sold with a standard six month warranty against defects. Additionally, some of our remanufactured engines are sold with a standard three year warranty against defects. We also provide a limited lifetime warranty for certain of our aftermarket products. These assurance-type warranties are not considered a separate performance obligation, and thus no transaction price is allocated to them. We record the warranty costs in Cost of goods sold in our Consolidated Statements of Income. Our warranty reserve is calculated using historical claim information to project future warranty claims activity and is recorded within Other accrued expenses and Other noncurrent liabilities on our Consolidated Balance Sheets based on the expected timing of the related payments. The changes in the warranty reserve are as follows (in thousands): Balance as of January 1, 2018 $ 23,151 Warranty expense 43,682 Warranty claims (43,571 ) Balance as of December 31, 2018 23,262 Warranty expense 58,253 Warranty claims (56,074 ) Balance as of December 31, 2019 $ 25,441
Equity Method Investments [Policy Text Block]	Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $139 million and $179 million as of December 31, 2019 and December 31, 2018 , respectively. Europe Segment Our investment in unconsolidated subsidiaries in Europe was $122 million and $163 million as of December 31, 2019 and December 31, 2018 , respectively. We recorded equity in losses of $33 million and $65 million during the years ended December 31, 2019 and December 31, 2018 , respectively, and equity in earnings of $6 million during the year ended December 31, 2017 related to our investments in unconsolidated subsidiaries in our Europe segment, mainly related to our investment in Mekonomen. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen for an aggregate purchase price of $181 million . In October 2018, we acquired an additional $48 million of equity in Mekonomen at a discounted share price as part of its rights issue, increasing our equity interest to 26.6% . We are accounting for our interest in Mekonomen using the equity method of accounting, as our investment gives us the ability to exercise significant influence, but not control, over the investee. As of December 31, 2019, our share of the book value of Mekonomen's net assets exceeded the book value of our investment in Mekonomen by $5 million ; this difference is primarily related to Mekonomen's Accumulated Other Comprehensive Income balance as of our acquisition date in 2016. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. During the years ended December 31, 2019 and 2018, we recognized other-than-temporary impairment charges of $40 million and $71 million , respectively, which represented the difference in the carrying value and the fair value of our investment in Mekonomen. The fair value of our investment in Mekonomen was determined using the Mekonomen share prices as of the dates of our impairment tests. The impairment charges are recorded in Equity in (losses) earnings of unconsolidated subsidiaries in our Consolidated Statements of Income. In May 2018, we received a cash dividend of $8 million (SEK 67 million ) related to our investment in Mekonomen. Mekonomen announced in February 2019 that the Mekonomen Board of Directors proposed no dividend payment in 2019. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at December 31, 2019 was $149 million (using the Mekonomen share price of SEK 93 as of December 31, 2019 ) compared to a carrying value of $111 million . In 2018, we participated in a rights issue with preferential rights for Mekonomen's existing shareholders, who were given the right to subscribe for four new Mekonomen shares per seven existing owned shares at a discounted share price. The rights issue represented a derivative instrument related to our right to acquire Mekonomen shares at a discount. We measured the derivative instrument at fair value, and we recorded a derivative loss of $5 million in Interest income and other income, net in the Consolidated Statements of Income in October 2018 upon the settlement of the derivative instrument. North America Segment Our investment in unconsolidated subsidiaries in the North America segment was $18 million and $16 million as of December 31, 2019 and December 31, 2018 , respectively. The equity in earnings for the North America equity investments was $1 million for the year ended December 31, 2019 and an immaterial amount for the year ended December 31, 2018 ; we did not have any equity in earnings in the North America segment in 2017.
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment are recorded at cost less accumulated depreciation. Expenditures for major additions and improvements that extend the useful life of the related asset are capitalized. As property, plant and equipment are sold or retired, the applicable cost and accumulated depreciation are removed from the accounts and any resulting gain or loss thereon is recognized. Construction in progress consists primarily of building and land improvements at our existing facilities. Depreciation is calculated using the straight-line method over the estimated useful lives or, in the case of leasehold improvements, the term of the related lease and reasonably assured renewal periods, if shorter. Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162 We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold in the Consolidated Statements of Income. We report depreciation expense resulting from restructuring programs in Restructuring and acquisition related expenses. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $174 million , $157 million , and $129 million , respectively.
Schedule Of Inventory	Inventories consist of the following (in thousands): December 31, 2019 2018 Aftermarket and refurbished products $ 2,297,895 $ 2,309,458 Salvage and remanufactured products 447,908 503,199 Manufactured products 26,974 23,418 Total inventories $ 2,772,777 $ 2,836,075
Schedule Of Estimated Useful Lives	Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years
Property, Plant and Equipment [Table Text Block]	Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162
Schedule of Goodwill [Table Text Block]	Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 )
Schedule of Finite-Lived and Indefinite-Lived Intangibles [Table Text Block]	The components of other intangibles, net are as follows (in thousands): December 31, 2019 December 31, 2018 Intangible assets subject to amortization $ 769,038 $ 847,452 Indefinite-lived intangible assets Trademarks 81,300 81,300 Total $ 850,338 $ 928,752
Schedule of Estimated Useful Lives, Finite Lived Intangible Assets [Table Text Block]	Our estimated useful lives for our finite-lived intangible assets are as follows: Method of Amortization Useful Life Trade names and trademarks Straight-line 4-30 years Customer and supplier relationships Accelerated 3-20 years Software and other technology related assets Straight-line 3-15 years Covenants not to compete Straight-line 2-5 years
Components Of Other Intangibles	The components of intangible assets subject to amortization are as follows (in thousands): December 31, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 488,945 $ (119,957 ) $ 368,988 $ 496,166 $ (94,451 ) $ 401,715 Customer and supplier relationships 580,052 (321,650 ) 258,402 593,517 (247,464 ) 346,053 Software and other technology related assets 248,941 (108,979 ) 139,962 176,118 (79,283 ) 96,835 Covenants not to compete 13,435 (11,749 ) 1,686 13,344 (10,495 ) 2,849 Total $ 1,331,373 $ (562,335 ) $ 769,038 $ 1,279,145 $ (431,693 ) $ 847,452
Schedule of Product Warranty Liability [Table Text Block]	The changes in the warranty reserve are as follows (in thousands): Balance as of January 1, 2018 $ 23,151 Warranty expense 43,682 Warranty claims (43,571 ) Balance as of December 31, 2018 23,262 Warranty expense 58,253 Warranty claims (56,074 ) Balance as of December 31, 2019 $ 25,441
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The components of intangible assets acquired as part of our acquisitions in 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Trade names and trademarks $ 173,946 $ 8,870 $ 182,816 Customer and supplier relationships 77,980 20,779 98,759 Software and other technology related assets 33,329 376 33,705 Covenants not to compete — — — Total $ 285,255 $ 30,025 $ 315,280
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life [Table Text Block]	The weighted-average amortization periods for our intangible assets acquired during the years ended December 31, 2018 and 2017 are as follows (in years): Year Ended Year Ended December 31, 2018 December 31, 2017 Stahlgruber Other Acquisitions Total All Acquisitions Trade names and trademarks 18.0 10.0 17.6 11.2 Customer and supplier relationships 3.0 7.9 4.0 18.6 Software and other technology related assets 5.2 6.5 5.2 11.1 Covenants not to compete — — — 4.4 Total acquired finite-lived intangible assets 12.4 8.5 12.0 16.5
Intangible Assets	Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 ) The components of other intangibles, net are as follows (in thousands): December 31, 2019 December 31, 2018 Intangible assets subject to amortization $ 769,038 $ 847,452 Indefinite-lived intangible assets Trademarks 81,300 81,300 Total $ 850,338 $ 928,752 The components of intangible assets subject to amortization are as follows (in thousands): December 31, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 488,945 $ (119,957 ) $ 368,988 $ 496,166 $ (94,451 ) $ 401,715 Customer and supplier relationships 580,052 (321,650 ) 258,402 593,517 (247,464 ) 346,053 Software and other technology related assets 248,941 (108,979 ) 139,962 176,118 (79,283 ) 96,835 Covenants not to compete 13,435 (11,749 ) 1,686 13,344 (10,495 ) 2,849 Total $ 1,331,373 $ (562,335 ) $ 769,038 $ 1,279,145 $ (431,693 ) $ 847,452 The components of intangible assets acquired as part of our acquisitions in 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Trade names and trademarks $ 173,946 $ 8,870 $ 182,816 Customer and supplier relationships 77,980 20,779 98,759 Software and other technology related assets 33,329 376 33,705 Covenants not to compete — — — Total $ 285,255 $ 30,025 $ 315,280 (1) The amounts recorded during the year ended December 31, 2018 exclude amounts related to our 2017 acquisitions, including a $5 million adjustment to increase other intangibles related to our 2017 acquisition of Warn. The weighted-average amortization periods for our intangible assets acquired during the years ended December 31, 2018 and 2017 are as follows (in years): Year Ended Year Ended December 31, 2018 December 31, 2017 Stahlgruber Other Acquisitions Total All Acquisitions Trade names and trademarks 18.0 10.0 17.6 11.2 Customer and supplier relationships 3.0 7.9 4.0 18.6 Software and other technology related assets 5.2 6.5 5.2 11.1 Covenants not to compete — — — 4.4 Total acquired finite-lived intangible assets 12.4 8.5 12.0 16.5 Our estimated useful lives for our finite-lived intangible assets are as follows: Method of Amortization Useful Life Trade names and trademarks Straight-line 4-30 years Customer and supplier relationships Accelerated 3-20 years Software and other technology related assets Straight-line 3-15 years Covenants not to compete Straight-line 2-5 years Amortization expense for intangibles was $140 million , $137 million , and $102 million during the years ended December 31, 2019 , 2018 , and 2017 , respectively. Estimated amortization expense for each of the five years in the period ending December 31, 2024 is $120 million , $93 million , $80 million , $70 million and $64 million , respectively.

Summary of Signficant Account_2

Summary of Signficant Accounting Policies Property, Plant and Equipment [Table Text Block] (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment are recorded at cost less accumulated depreciation. Expenditures for major additions and improvements that extend the useful life of the related asset are capitalized. As property, plant and equipment are sold or retired, the applicable cost and accumulated depreciation are removed from the accounts and any resulting gain or loss thereon is recognized. Construction in progress consists primarily of building and land improvements at our existing facilities. Depreciation is calculated using the straight-line method over the estimated useful lives or, in the case of leasehold improvements, the term of the related lease and reasonably assured renewal periods, if shorter. Our estimated useful lives are as follows: Land improvements 10-20 years Buildings and improvements 20-40 years Machinery and equipment 3-20 years Computer equipment and software 3-10 years Vehicles and trailers 3-10 years Furniture and fixtures 5-7 years Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162 We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold in the Consolidated Statements of Income. We report depreciation expense resulting from restructuring programs in Restructuring and acquisition related expenses. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $174 million , $157 million , and $129 million , respectively.
Property, Plant and Equipment [Table Text Block]	Property, plant and equipment consists of the following (in thousands): December 31, 2019 2018 Land and improvements $ 194,437 $ 177,998 Buildings and improvements 384,918 351,733 Machinery and equipment 679,292 617,424 Computer equipment and software 153,900 143,547 Vehicles and trailers 156,334 150,824 Furniture and fixtures 52,601 58,919 Leasehold improvements 295,534 278,687 Finance lease assets 71,724 61,310 1,988,740 1,840,442 Less—Accumulated depreciation (807,680 ) (685,751 ) Construction in progress 53,340 65,471 Total property, plant and equipment, net $ 1,234,400 $ 1,220,162

Summary of Signficant Account_3

Summary of Signficant Accounting Policies Finite-Lived Intangible Assets Acquired as Part of Business Combination (Tables)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Goodwill [Table Text Block]	Intangible Assets Intangible assets consist primarily of goodwill (the cost of purchased businesses in excess of the fair value of the identifiable net assets acquired) and other specifically identifiable intangible assets, such as trade names, trademarks, customer and supplier relationships, software and other technology related assets, and covenants not to compete. Goodwill is tested for impairment at least annually, and we performed annual impairment tests during the fourth quarters of 2019 , 2018 and 2017 . Goodwill impairment testing may also be performed on an interim basis when events or circumstances arise that may lead to impairment. The fair value estimates of our reporting units are established using weightings of the results of a discounted cash flow methodology and a comparative market multiples approach. Based on the annual goodwill impairment test in 2019, we determined no impairment existed as all of our reporting units had a fair value estimate which exceeded the carrying value by at least 25% . Based on our annual goodwill impairment test in 2018, we determined the carrying value of our Aviation reporting unit exceeded the fair value estimate by more than the carrying value, thus we recorded an impairment charge of $33 million , which represented the total carrying value of goodwill in our Aviation reporting unit (subsequently sold in the third quarter of 2019). The impairment charge was due to a decrease in the fair value estimate from the prior year fair value estimate, primarily driven by a significant deterioration in the outlook for the Aviation reporting unit due to competition, customer financial issues and changing market conditions for the airplane platforms that the business services, which lowered our projected gross margin and related future cash flows. We reported the impairment charge in Impairment of net assets held for sale and goodwill in the Consolidated Statements of Income for the year ended December 31, 2018 . The changes in the carrying amount of goodwill by reportable segment are as follows (in thousands): North America Europe Specialty Total Balance as of January 1, 2018 $ 1,709,354 $ 1,414,898 $ 412,259 $ 3,536,511 Business acquisitions and adjustments to previously recorded goodwill 6,805 970,923 (4,838 ) 972,890 Impairment of goodwill (33,244 ) — — (33,244 ) Exchange rate effects (9,383 ) (85,532 ) 216 (94,699 ) Balance as of December 31, 2018 $ 1,673,532 $ 2,300,289 $ 407,637 $ 4,381,458 Business acquisitions and adjustments to previously recorded goodwill 38,913 15,099 — 54,012 Reclassified to net assets held for sale and discontinued operations — (4,721 ) — (4,721 ) Disposal of business — (1,919 ) — (1,919 ) Exchange rate effects 5,599 (27,847 ) (47 ) (22,295 ) Balance as of December 31, 2019 $ 1,718,044 $ 2,280,901 $ 407,590 $ 4,406,535 Accumulated impairment losses as of December 31, 2019 $ (33,244 ) $ — $ — $ (33,244 )
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The components of intangible assets acquired as part of our acquisitions in 2018 are as follows (in thousands): Year Ended December 31, 2018 Stahlgruber Other Acquisitions (1) Total Trade names and trademarks $ 173,946 $ 8,870 $ 182,816 Customer and supplier relationships 77,980 20,779 98,759 Software and other technology related assets 33,329 376 33,705 Covenants not to compete — — — Total $ 285,255 $ 30,025 $ 315,280
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		16 years 6 months
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life [Table Text Block]	The weighted-average amortization periods for our intangible assets acquired during the years ended December 31, 2018 and 2017 are as follows (in years): Year Ended Year Ended December 31, 2018 December 31, 2017 Stahlgruber Other Acquisitions Total All Acquisitions Trade names and trademarks 18.0 10.0 17.6 11.2 Customer and supplier relationships 3.0 7.9 4.0 18.6 Software and other technology related assets 5.2 6.5 5.2 11.1 Covenants not to compete — — — 4.4 Total acquired finite-lived intangible assets 12.4 8.5 12.0 16.5

Revenue Recognition Disaggregat

Revenue Recognition Disaggregation of Revenue (Tables)	12 Months Ended
	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	The following table sets forth our revenue by category, with our parts and services revenue further disaggregated by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 North America $ 4,600,903 $ 4,558,220 $ 4,278,531 Europe 5,817,547 5,202,231 3,628,906 Specialty 1,459,396 1,472,956 1,301,197 Parts and services 11,877,846 11,233,407 9,208,634 Other 628,263 643,267 528,275 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909

Revenue Recognition Product War

Revenue Recognition Product Warranty Liability (Tables)	12 Months Ended
	Dec. 31, 2019
Product Warranties Disclosures [Abstract]
Schedule of Product Warranty Liability [Table Text Block]	The changes in deferred service-type warranty revenue are as follows (in thousands): Balance as of January 1, 2018 $ 19,465 Additional warranty revenue deferred 38,736 Warranty revenue recognized (34,195 ) Balance as of December 31, 2018 24,006 Additional warranty revenue deferred 43,381 Warranty revenue recognized (40,320 ) Balance as of December 31, 2019 $ 27,067

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block]	As of December 31, 2019 , unrecognized compensation expense related to unvested RSUs and PSUs is expected to be recognized as follows (in thousands): 2020 $ 16,776 2021 10,863 2022 6,054 2023 2,641 2024 182 Total unrecognized compensation expense $ 36,516
Schedule of Nonvested Restricted Stock Units Activity	The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the year ended December 31, 2019 : Number Outstanding Weighted Average Grant Date Fair Value Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Unvested as of January 1, 2019 1,475,682 $ 34.94 Granted (2) 1,021,535 $ 27.82 Vested (796,936 ) $ 32.50 Forfeited / Canceled (88,255 ) $ 33.38 Unvested as of December 31, 2019 1,612,026 $ 31.72 Expected to vest after December 31, 2019 1,458,089 $ 31.75 2.5 $ 52,054
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes activity related to our stock options under the Equity Incentive Plan for the year ended December 31, 2019 : Number Outstanding Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Balance as of January 1, 2019 1,051,494 $ 10.15 Exercised (926,809 ) $ 9.77 $ 19,725 Canceled (10,091 ) $ 21.25 Balance as of December 31, 2019 114,594 $ 12.26 0.1 $ 2,686 Exercisable as of December 31, 2019 114,594 $ 12.26 0.1 $ 2,686

Earnings Per Share Schedule of

Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted (Tables)	12 Months Ended
	Dec. 31, 2019
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following chart sets forth the computation of earnings per share (in thousands, except per share amounts): Year Ended December 31, 2019 2018 2017 Income from continuing operations $ 543,415 $ 487,565 $ 536,974 Denominator for basic earnings per share—Weighted-average shares outstanding 310,155 314,428 308,607 Effect of dilutive securities: RSUs 393 409 544 PSUs — — — Stock options 421 1,012 1,498 Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding 310,969 315,849 310,649 Basic earnings per share from continuing operations $ 1.75 $ 1.55 $ 1.74 Diluted earnings per share from continuing operations (1) $ 1.75 $ 1.54 $ 1.73

Earnings Per Share Schedule o_2

Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	The following table sets forth the number of employee stock-based compensation awards outstanding but not included in the computation of diluted earnings per share because their effect would have been antidilutive for the years ended December 31, 2019 , 2018 , and 2017 (in thousands): Year Ended December 31, 2019 2018 2017 Antidilutive securities: RSUs 586 410 37 Stock options 24 8 39

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Foreign Unrealized Gain (Loss) Unrealized (Loss) Gain Other Comprehensive (Loss) Income from Unconsolidated Subsidiaries Accumulated Balance at January 1, 2017 $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income (loss) 206,451 (44,550 ) 361 — 162,262 Income tax effect (7,366 ) 16,390 (100 ) — 8,924 Reclassification of unrealized loss (gain) — 50,090 (3,519 ) — 46,571 Reclassification of deferred income taxes — (18,483 ) 659 — (17,824 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive loss from unconsolidated subsidiaries — — — (1,309 ) (1,309 ) Balance at December 31, 2017 $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax (loss) income (113,030 ) 37,552 1,132 — (74,346 ) Income tax effect 4,507 (8,846 ) (403 ) — (4,742 ) Reclassification of unrealized gain — (37,009 ) (54 ) — (37,063 ) Reclassification of deferred income taxes — 8,653 22 — 8,675 Other comprehensive loss from unconsolidated subsidiaries — — — (2,343 ) (2,343 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Balance at December 31, 2018 $ (177,597 ) $ 14,374 $ (8,075 ) $ (3,652 ) $ (174,950 ) Pretax income (loss) 7,083 23,850 (31,801 ) — (868 ) Income tax effect — (5,579 ) 8,579 — 3,000 Reclassification of unrealized gain — (35,686 ) (782 ) — (36,468 ) Reclassification of deferred income taxes — 8,399 145 — 8,544 Disposal of business (379 ) — — — (379 ) Other comprehensive income from unconsolidated subsidiaries — — — 236 236 Balance at December 31, 2019 $ (170,893 ) $ 5,358 $ (31,934 ) $ (3,416 ) $ (200,885 )
Cash Flow Hedges Reclassified to Statements of Income [Table Text Block]	The amounts of unrealized gains and losses on our Cash Flow Hedges reclassified to our Consolidated Statements of Income are as follows (in thousands): Year Ended December 31 Classification 2019 2018 2017 Unrealized gains on interest rate swaps Interest expense $ 5,872 $ 5,482 $ 373 Unrealized gains on cross currency swaps Interest expense 15,794 11,105 6,835 Unrealized gains (losses) on cross currency swaps (1) Interest income and other income, net 14,020 20,422 (57,298 ) Total $ 35,686 $ 37,009 $ (50,090 )

Long-Term Obligations (Tables)

Long-Term Obligations (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule Of Long-Term Obligations	Long-term obligations consist of the following (in thousands): December 31, 2019 2018 Senior secured credit agreement: Term loans payable $ 341,250 $ 350,000 Revolving credit facilities 1,268,008 1,387,177 U.S. Notes (2023) 600,000 600,000 Euro Notes (2024) 560,650 573,350 Euro Notes (2026/28) 1,121,300 1,146,700 Receivables securitization facility — 110,000 Notes payable through October 2030 at weighted average interest rates of 3.2% and 2.0%, respectively 26,971 23,056 Finance lease obligations at weighted average interest rates of 4.1% and 4.5%, respectively 40,837 39,966 Other debt at weighted average interest rates of 1.8% and 1.8%, respectively 113,010 117,448 Total debt 4,072,026 4,347,697 Less: long-term debt issuance costs (29,990 ) (36,906 ) Less: current debt issuance costs (280 ) (291 ) Total debt, net of debt issuance costs 4,041,756 4,310,500 Less: current maturities, net of debt issuance costs (326,367 ) (121,826 ) Long term debt, net of debt issuance costs $ 3,715,389 $ 4,188,674
Schedule of Maturities of Long-term Debt [Table Text Block]	The scheduled maturities of long-term obligations outstanding at December 31, 2019 are as follows (in thousands): 2020 (1) $ 326,648 2021 (1) 133,951 2022 25,912 2023 21,650 2024 (1) 2,427,714 Thereafter 1,136,151 Total debt (2) $ 4,072,026

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following tables present information about our financial assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation inputs we utilized to determine such fair value as of December 31, 2019 and December 31, 2018 (in thousands): Balance as of December 31, 2019 Fair Value Measurements as of December 31, 2019 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 60,637 $ — $ 60,637 $ — Interest rate swaps 3,262 — 3,262 — Cross currency swap agreements 3,156 — 3,156 — Total Assets $ 67,055 $ — $ 67,055 $ — Liabilities: Contingent consideration liabilities $ 11,539 $ — $ — $ 11,539 Deferred compensation liabilities 63,981 — 63,981 — Cross currency swap agreements 24,319 — 24,319 — Total Liabilities $ 99,839 $ — $ 88,300 $ 11,539 Balance as of December 31, 2018 Fair Value Measurements as of December 31, 2018 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 47,649 $ — $ 47,649 $ — Interest rate swaps 14,967 — 14,967 — Cross currency swap agreements 7,880 — 7,880 — Total Assets $ 70,496 $ — $ 70,496 $ — Liabilities: Contingent consideration liabilities $ 5,209 $ — $ — $ 5,209 Deferred compensation liabilities 48,984 — 48,984 — Cross currency swap agreements 40,997 — 40,997 — Total Liabilities $ 95,190 $ — $ 89,981 $ 5,209
Schedule of Derivative Instruments [Table Text Block]	The following tables summarize the notional amounts and fair values of our designated cash flow hedges as of December 31, 2019 and 2018 (in thousands): Notional Amount Fair Value at December 31, 2019 (USD) December 31, 2019 Other Current Assets Other Noncurrent Assets Other Accrued Expenses Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 480,000 $ — $ 3,262 $ — $ — Cross currency swap agreements USD/euro $ 466,621 2,975 181 970 23,349 Total cash flow hedges $ 2,975 $ 3,443 $ 970 $ 23,349 Notional Amount Fair Value at December 31, 2018 (USD) December 31, 2018 Other Current Assets Other Noncurrent Assets Other Accrued Expenses Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 480,000 $ — $ 14,967 $ — $ — Cross currency swap agreements USD/euro $ 574,315 211 7,669 127 40,870 Total cash flow hedges $ 211 $ 22,636 $ 127 $ 40,870

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2019
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following tables present information about our financial assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation inputs we utilized to determine such fair value as of December 31, 2019 and December 31, 2018 (in thousands): Balance as of December 31, 2019 Fair Value Measurements as of December 31, 2019 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 60,637 $ — $ 60,637 $ — Interest rate swaps 3,262 — 3,262 — Cross currency swap agreements 3,156 — 3,156 — Total Assets $ 67,055 $ — $ 67,055 $ — Liabilities: Contingent consideration liabilities $ 11,539 $ — $ — $ 11,539 Deferred compensation liabilities 63,981 — 63,981 — Cross currency swap agreements 24,319 — 24,319 — Total Liabilities $ 99,839 $ — $ 88,300 $ 11,539 Balance as of December 31, 2018 Fair Value Measurements as of December 31, 2018 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 47,649 $ — $ 47,649 $ — Interest rate swaps 14,967 — 14,967 — Cross currency swap agreements 7,880 — 7,880 — Total Assets $ 70,496 $ — $ 70,496 $ — Liabilities: Contingent consideration liabilities $ 5,209 $ — $ — $ 5,209 Deferred compensation liabilities 48,984 — 48,984 — Cross currency swap agreements 40,997 — 40,997 — Total Liabilities $ 95,190 $ — $ 89,981 $ 5,209

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Schedule of Lease Term, Discount Rate, and Supplemental Cash Flow Information [Table Text Block]	Other information related to leases was as follows: Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term (years) Operating leases 9.5 Finance leases 9.2 Weighted-average discount rate Operating leases 5.2 % Finance leases 4.1 % Year Ended Supplemental cash flows information (in thousands) December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ 297,712 Financing cash outflows from finance leases 11,744 Leased assets obtained in exchange for new finance lease liabilities 13,326 Leased assets obtained in exchange for new operating lease liabilities 144,142
Schedule of Leases [Table Text Block]	The amounts recorded on the Consolidated Balance Sheet as of December 31, 2019 related to our lease agreements are as follows (in thousands): Leases Classification December 31, 2019 Assets Operating lease assets, net Operating lease assets, net $ 1,308,511 Finance lease assets, net Property, plant and equipment, net 39,077 Total leased assets $ 1,347,588 Liabilities Current Operating Current portion of operating lease liabilities $ 221,527 Finance Current portion of long-term obligations 9,409 Noncurrent Operating Long-term operating lease liabilities, excluding current portion 1,137,597 Finance Long-term obligations, excluding current portion 31,428 Total lease liabilities $ 1,399,961
Lease, Cost [Table Text Block]	The components of lease expense are as follows (in thousands): Year Ended Lease Cost Classification December 31, 2019 Operating lease cost Cost of goods sold $ 13,416 Operating lease cost Selling, general and administrative expenses 303,619 Short-term lease cost Selling, general and administrative expenses 9,392 Variable lease cost Selling, general and administrative expenses 95,899 Finance lease cost Amortization of leased assets Depreciation and amortization 10,277 Interest on lease liabilities Interest expense 1,546 Sublease income Selling, general and administrative expenses (1,640 ) Net lease cost $ 432,509
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	The future minimum lease commitments under our noncancelable operating leases at December 31, 2018 were as follows (in thousands): Years ending December 31: 2019 $ 294,269 2020 256,172 2021 210,632 2022 158,763 2023 131,518 Thereafter 777,165 Future Minimum Lease Payments $ 1,828,519
Schedule of Maturing of Lease Liabilities [Table Text Block]	The future minimum lease commitments under our leases at December 31, 2019 are as follows (in thousands): Operating leases Finance leases (1) Total Years ending December 31: 2020 $ 288,726 $ 10,121 $ 298,847 2021 249,168 8,743 257,911 2022 200,546 7,166 207,712 2023 167,858 3,591 171,449 2024 138,502 3,138 141,640 Thereafter 760,030 19,381 779,411 Future minimum lease payments 1,804,830 52,140 1,856,970 Less: Interest 445,706 11,303 457,009 Present value of lease liabilities $ 1,359,124 $ 40,837 $ 1,399,961

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Schedule of Expected Benefit Payments [Table Text Block]	The following table summarizes estimated future benefit payments as of December 31, 2019 (in thousands): Year Ended December 31, Amount 2020 (1) $ 43,446 2021 4,357 2022 4,890 2023 5,003 2024 5,474 2025 - 2029 29,946
Pension and Other Postretirement Benefits Disclosure [Text Block]	Employee Benefit Plans Defined Benefit Plans We have funded and unfunded defined benefit plans covering certain employee groups in the U.S. and various European countries. Local statutory requirements govern many of our European plans. The defined benefit plans are mostly closed to new participants and, in some cases, existing participants no longer accrue benefits. On June 28, 2019, we approved an amendment to terminate our primary defined benefit plan in the U.S. (the "U.S. Plan") and freeze all related benefit accruals, effective June 30, 2019. The distribution of the U.S. Plan assets pursuant to the termination will not be made until the plan termination satisfies all regulatory requirements, which is expected to be completed in 2020. U.S. Plan participants will receive their full accrued benefits from plan assets by electing either lump sum distributions or annuity contracts with a qualifying third party annuity provider. The resulting settlement effect of the U.S. Plan termination will be determined based on prevailing market conditions, the lump sum offer participation rate of eligible participants, the actual lump sum distributions, and annuity purchase rates at the date of distribution. As a result, we are currently unable to reasonably estimate either the timing or the final amount of such settlement charges. Based on the valuation performed as of December 31, 2019, the U.S. Plan has an underfunded status of $8 million . Funded Status The table below summarizes the funded status of our defined benefit plans (in thousands): December 31, 2019 2018 Change in projected benefit obligation: Projected benefit obligation - beginning of year $ 201,492 $ 126,031 Acquisitions (1) 2,071 79,211 Service cost 3,592 3,215 Interest cost 4,077 3,476 Participant contributions 408 415 Actuarial (gain) / loss 32,018 (989 ) Benefits paid (2) (6,849 ) (4,447 ) Curtailment (6 ) — Settlement (3) (8,493 ) (756 ) Currency impact (2,922 ) (4,664 ) Projected benefit obligation - end of year $ 225,388 $ 201,492 Change in fair value of plan assets: Fair value - beginning of year $ 91,672 $ 82,852 Acquisitions (1) — 251 Actual return on plan assets 2,558 3,018 Employer contributions 4,740 9,975 Participant contributions 408 415 Benefits paid (6,770 ) (2,788 ) Settlement (3) (8,493 ) — Currency impact (810 ) (2,051 ) Fair value - end of year $ 83,305 $ 91,672 Funded status at end of year (liability) $ (142,083 ) $ (109,820 ) Accumulated benefit obligation $ 222,607 $ 199,337 (1) 2018 amounts relate primarily to the addition of plans in connection with our acquisition of Stahlgruber. (2) Includes amounts paid from plan assets as well as amounts paid from Company assets. (3) During 2019, settlement accounting was triggered for three of our European pension plans resulting in a net gain of less than $1 million recognized in Interest income and other income, net in our Consolidated Statements of Income. The net amounts recognized for defined benefit plans in the Consolidated Balance Sheets were as follows (in thousands): December 31, 2019 2018 Non-current assets $ — $ 377 Current liabilities (11,754 ) (3,280 ) Non-current liabilities (130,329 ) (106,917 ) $ (142,083 ) $ (109,820 ) The following table summarizes the accumulated benefit obligation and aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Accumulated benefit obligation $ 222,607 $ 169,097 Aggregate fair value of plan assets 83,305 60,988 The following table summarizes the projected benefit obligation and aggregate fair value of plan assets for pension plans with projected benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Projected benefit obligation $ 225,388 $ 171,185 Aggregate fair value of plan assets 83,305 60,988 The table below summarizes the weighted-average assumptions used to calculate the year-end benefit obligations: 2019 2018 Discount rate used to determine benefit obligation 1.4 % 2.1 % Rate of future compensation increase 1.7 % 0.9 % Net Periodic Benefit Cost The table below summarizes the components of net periodic benefit cost for our defined benefit plans (in thousands): Year Ended December 31, 2019 2018 2017 Service cost $ 3,592 $ 3,215 $ 4,525 Interest cost 4,077 3,476 3,670 Expected return on plan assets (1) (2,337 ) (2,949 ) (2,467 ) Amortization of prior service credit — — (181 ) Amortization of actuarial (gain) loss (2) (404 ) (54 ) 473 Curtailment gain — — (3,811 ) Settlement (gain) / loss (378 ) 74 (4 ) Net periodic benefit cost $ 4,550 $ 3,762 $ 2,205 (1) We use the fair value of our plan assets to calculate the expected return on plan assets. (2) Actuarial gains and losses are amortized using a corridor approach. Gains and losses are amortized if, as of the beginning of the year, the cumulative net gain or loss exceeds 10 percent of the greater of the projected benefit obligation or the fair value of the plan assets. Gains and losses in excess of the corridor are amortized over the average remaining service period of active members expected to receive benefits under the plan or, in the case of closed plans, the expected future lifetime of the employees participating in the plan. For the years ended December 31, 2019 , 2018 and 2017, the service cost component of net periodic benefit cost was classified in Selling, general and administrative expenses, while the other components of net periodic benefit cost were classified in Interest income and other income, net in our Consolidated Statements of Income. The table below summarizes the weighted-average assumptions used to calculate the net periodic benefit cost in the table above: 2019 2018 2017 Discount rate used to determine service cost 1.3 % 1.3 % 1.5 % Discount rate used to determine interest cost 2.5 % 2.5 % 3.0 % Rate of future compensation increase 1.8 % 1.9 % 1.3 % Expected long-term return on plan assets (1) 3.1 % 4.8 % 5.0 % (1) Our expected long-term return on plan assets is determined based on our asset allocation and estimate of future long-term returns by asset class. Assumed mortality is also a key assumption in determining benefit obligations and net periodic benefit cost. In some of our European plans, a price inflation index is also an assumption in determining benefit obligations and net periodic benefit cost. As of December 31, 2019 , the pre-tax amounts recognized in Accumulated other comprehensive income consisted of $42 million of net actuarial losses for our defined benefit plans that have not yet been recognized in net periodic benefit cost. Of this amount, we expect $1 million to be recognized as a component of net periodic benefit cost during the year ending December 31, 2020. Fair Value of Plan Assets Fair value is defined as the amount that would be received for selling an asset or paid to transfer a liability in an orderly transaction between market participants. The tiers in the fair value hierarchy include: Level 1, defined as observable inputs such as quoted market prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as significant unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. Investments that are valued using net asset value ("NAV") (or its equivalent) as a practical expedient are excluded from the fair value hierarchy disclosure. The following is a description of the valuation methodologies used for assets reported at fair value. The methodologies used at December 31, 2019 and December 31, 2018 are the same. Level 1 investments: Cash and cash equivalents are valued based on cost, which approximates fair value. Short-term investments are valued initially at cost and adjusted for amortization of any discount or premium. U.S. Bond funds are priced by industry vendors such as Intercontinental Exchange (ICE) Data Services using benchmark yields, reported trades, issuer spreads, and broker/dealer quotes. Level 3 investments: Investments in insurance contracts represent the cash surrender value of the insurance policy. These are actuarially determined amounts based on projections of future benefit payments, discount rates, and expected long-term rate of return on assets. The remaining pension assets are valued at net asset value based on the underlying assets owned by the fund administrator, minus liabilities, divided by the number of units outstanding and are included in the table below to reconcile the total investment fair value of our plan assets. For our unfunded pension plans, the Company pays the defined benefit plan obligations when they become due. The table below summarizes the fair value of our defined benefit plan assets by asset category within the fair value hierarchy for our funded defined benefit pension plans (in thousands): December 31, 2019 2018 Level 1 Level 2 Level 3 NAV Total Level 1 Level 2 Level 3 Total Cash and cash-equivalents (1) $ — $ — $ — $ — $ — $ 30,684 $ — $ — $ 30,684 Short-term investments 433 — — — 433 — — — — U.S. Bonds (2) 29,035 — — — 29,035 — — — — Insurance contracts — — 40,676 — 40,676 — — 60,988 60,988 Mutual fund (3) — — — 13,161 13,161 $ — $ — $ — — Total investments at fair value $ 29,468 $ — $ 40,676 $ 13,161 $ 83,305 $ 30,684 $ — $ 60,988 $ 91,672 (1) Consists of institutional short-term investment funds. (2) Consists primarily of U.S. Treasury notes with readily available pricing data. (3) The underlying assets of the mutual fund valued at NAV consist of international bonds, equity, real estate and other investments. The following table summarizes the changes in fair value measurements of Level 3 investments for our defined benefit plans (in thousands): December 31, 2019 2018 Balance at beginning of year $ 60,988 $ 60,774 Actual return on plan assets: Relating to assets held at the reporting date 1,424 2,556 Purchases, sales and settlements (1,181 ) (541 ) Transfers in and/or out of Level 3 (19,640 ) 255 Currency impact (915 ) (2,056 ) Balance at end of year $ 40,676 $ 60,988 Assets for our defined benefit pension plans in Europe are invested primarily in insurance policies. Under these contracts, we pay premiums to the insurance company, which are based on an internal actuarial analysis performed by the insurance company; the insurance company then funds the pension payments to the plan participants upon retirement. In 2019, we changed our funding for one of our European plans from insurance contracts to a direct investment in a mutual fund which is invested in various international bond, equity, real estate and other investments. The assets for our U.S. plan are managed by a master trust, with oversight responsibility by our Benefits Committee. During 2019, we engaged an investment advisor to help minimize the volatility in our funded status as we began the process of terminating our U.S. Plan. As a result, we updated our investment strategy such that as of December 31, 2019 our U.S. Plan assets reside primarily in U.S. Bonds, with a smaller allocation of assets in short-term investments. The new investment policy and allocation of the assets was approved by our Benefits Committee. Employer Contributions and Estimated Future Benefit Payments During the year ended December 31, 2019 , we contributed $5 million to our pension plans. We estimate that contributions to our pension plans during 2020 will be $13 million . The following table summarizes estimated future benefit payments as of December 31, 2019 (in thousands): Year Ended December 31, Amount 2020 (1) $ 43,446 2021 4,357 2022 4,890 2023 5,003 2024 5,474 2025 - 2029 29,946 (1) This amount includes the gross benefit payments expected to be paid to settle the U.S. Plan, exclusive of plan assets.
Schedule Of Changes In Projected Benefit Obligations And Fair Value Of Plan Assets [Table Text Block]	The table below summarizes the funded status of our defined benefit plans (in thousands): December 31, 2019 2018 Change in projected benefit obligation: Projected benefit obligation - beginning of year $ 201,492 $ 126,031 Acquisitions (1) 2,071 79,211 Service cost 3,592 3,215 Interest cost 4,077 3,476 Participant contributions 408 415 Actuarial (gain) / loss 32,018 (989 ) Benefits paid (2) (6,849 ) (4,447 ) Curtailment (6 ) — Settlement (3) (8,493 ) (756 ) Currency impact (2,922 ) (4,664 ) Projected benefit obligation - end of year $ 225,388 $ 201,492 Change in fair value of plan assets: Fair value - beginning of year $ 91,672 $ 82,852 Acquisitions (1) — 251 Actual return on plan assets 2,558 3,018 Employer contributions 4,740 9,975 Participant contributions 408 415 Benefits paid (6,770 ) (2,788 ) Settlement (3) (8,493 ) — Currency impact (810 ) (2,051 ) Fair value - end of year $ 83,305 $ 91,672 Funded status at end of year (liability) $ (142,083 ) $ (109,820 ) Accumulated benefit obligation $ 222,607 $ 199,337
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	The net amounts recognized for defined benefit plans in the Consolidated Balance Sheets were as follows (in thousands): December 31, 2019 2018 Non-current assets $ — $ 377 Current liabilities (11,754 ) (3,280 ) Non-current liabilities (130,329 ) (106,917 ) $ (142,083 ) $ (109,820 )
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]	The following table summarizes the accumulated benefit obligation and aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Accumulated benefit obligation $ 222,607 $ 169,097 Aggregate fair value of plan assets 83,305 60,988
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block]	The following table summarizes the projected benefit obligation and aggregate fair value of plan assets for pension plans with projected benefit obligations in excess of plan assets (in thousands): December 31, 2019 2018 Projected benefit obligation $ 225,388 $ 171,185 Aggregate fair value of plan assets 83,305 60,988
Defined Benefit Plan, Assumptions [Table Text Block]	The table below summarizes the weighted-average assumptions used to calculate the year-end benefit obligations: 2019 2018 Discount rate used to determine benefit obligation 1.4 % 2.1 % Rate of future compensation increase 1.7 % 0.9 % The table below summarizes the weighted-average assumptions used to calculate the net periodic benefit cost in the table above: 2019 2018 2017 Discount rate used to determine service cost 1.3 % 1.3 % 1.5 % Discount rate used to determine interest cost 2.5 % 2.5 % 3.0 % Rate of future compensation increase 1.8 % 1.9 % 1.3 % Expected long-term return on plan assets (1) 3.1 % 4.8 % 5.0 %
Equity Method Investments [Policy Text Block]	Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $139 million and $179 million as of December 31, 2019 and December 31, 2018 , respectively. Europe Segment Our investment in unconsolidated subsidiaries in Europe was $122 million and $163 million as of December 31, 2019 and December 31, 2018 , respectively. We recorded equity in losses of $33 million and $65 million during the years ended December 31, 2019 and December 31, 2018 , respectively, and equity in earnings of $6 million during the year ended December 31, 2017 related to our investments in unconsolidated subsidiaries in our Europe segment, mainly related to our investment in Mekonomen. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen for an aggregate purchase price of $181 million . In October 2018, we acquired an additional $48 million of equity in Mekonomen at a discounted share price as part of its rights issue, increasing our equity interest to 26.6% . We are accounting for our interest in Mekonomen using the equity method of accounting, as our investment gives us the ability to exercise significant influence, but not control, over the investee. As of December 31, 2019, our share of the book value of Mekonomen's net assets exceeded the book value of our investment in Mekonomen by $5 million ; this difference is primarily related to Mekonomen's Accumulated Other Comprehensive Income balance as of our acquisition date in 2016. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. During the years ended December 31, 2019 and 2018, we recognized other-than-temporary impairment charges of $40 million and $71 million , respectively, which represented the difference in the carrying value and the fair value of our investment in Mekonomen. The fair value of our investment in Mekonomen was determined using the Mekonomen share prices as of the dates of our impairment tests. The impairment charges are recorded in Equity in (losses) earnings of unconsolidated subsidiaries in our Consolidated Statements of Income. In May 2018, we received a cash dividend of $8 million (SEK 67 million ) related to our investment in Mekonomen. Mekonomen announced in February 2019 that the Mekonomen Board of Directors proposed no dividend payment in 2019. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at December 31, 2019 was $149 million (using the Mekonomen share price of SEK 93 as of December 31, 2019 ) compared to a carrying value of $111 million . In 2018, we participated in a rights issue with preferential rights for Mekonomen's existing shareholders, who were given the right to subscribe for four new Mekonomen shares per seven existing owned shares at a discounted share price. The rights issue represented a derivative instrument related to our right to acquire Mekonomen shares at a discount. We measured the derivative instrument at fair value, and we recorded a derivative loss of $5 million in Interest income and other income, net in the Consolidated Statements of Income in October 2018 upon the settlement of the derivative instrument. North America Segment Our investment in unconsolidated subsidiaries in the North America segment was $18 million and $16 million as of December 31, 2019 and December 31, 2018 , respectively. The equity in earnings for the North America equity investments was $1 million for the year ended December 31, 2019 and an immaterial amount for the year ended December 31, 2018 ; we did not have any equity in earnings in the North America segment in 2017.
Share-based Payment Arrangement, Cost by Plan [Table Text Block]	The components of pre-tax stock-based compensation expense for our continuing operations are as follows (in thousands): Year Ended December 31, 2019 2018 2017 RSUs $ 27,695 $ 22,760 $ 22,826 Stock options and other — — 6 Total stock-based compensation expense $ 27,695 $ 22,760 $ 22,832
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	The following table sets forth the classification of total stock-based compensation expense included in our Consolidated Statements of Income for our continuing operations (in thousands): Year Ended December 31, 2019 2018 2017 Cost of goods sold $ 477 $ 469 $ 434 Selling, general and administrative expenses 27,218 22,291 22,398 Total stock-based compensation expense 27,695 22,760 22,832 Income tax benefit (6,227 ) (5,220 ) (5,459 ) Total stock-based compensation expense, net of tax $ 21,468 $ 17,540 $ 17,373 We have not capitalized any stock-based compensation costs during the years ended December 31, 2019 , 2018 , and 2017 .
Schedule of Net Benefit Costs [Table Text Block]	The table below summarizes the components of net periodic benefit cost for our defined benefit plans (in thousands): Year Ended December 31, 2019 2018 2017 Service cost $ 3,592 $ 3,215 $ 4,525 Interest cost 4,077 3,476 3,670 Expected return on plan assets (1) (2,337 ) (2,949 ) (2,467 ) Amortization of prior service credit — — (181 ) Amortization of actuarial (gain) loss (2) (404 ) (54 ) 473 Curtailment gain — — (3,811 ) Settlement (gain) / loss (378 ) 74 (4 ) Net periodic benefit cost $ 4,550 $ 3,762 $ 2,205
Schedule of Allocation of Plan Assets [Table Text Block]	The table below summarizes the fair value of our defined benefit plan assets by asset category within the fair value hierarchy for our funded defined benefit pension plans (in thousands): December 31, 2019 2018 Level 1 Level 2 Level 3 NAV Total Level 1 Level 2 Level 3 Total Cash and cash-equivalents (1) $ — $ — $ — $ — $ — $ 30,684 $ — $ — $ 30,684 Short-term investments 433 — — — 433 — — — — U.S. Bonds (2) 29,035 — — — 29,035 — — — — Insurance contracts — — 40,676 — 40,676 — — 60,988 60,988 Mutual fund (3) — — — 13,161 13,161 $ — $ — $ — — Total investments at fair value $ 29,468 $ — $ 40,676 $ 13,161 $ 83,305 $ 30,684 $ — $ 60,988 $ 91,672
Change In Fair Value Of Plan Assets Level 3 [Table Text Block]	The following table summarizes the changes in fair value measurements of Level 3 investments for our defined benefit plans (in thousands): December 31, 2019 2018 Balance at beginning of year $ 60,988 $ 60,774 Actual return on plan assets: Relating to assets held at the reporting date 1,424 2,556 Purchases, sales and settlements (1,181 ) (541 ) Transfers in and/or out of Level 3 (19,640 ) 255 Currency impact (915 ) (2,056 ) Balance at end of year $ 40,676 $ 60,988

Income Taxes Income Taxes (Tabl

Income Taxes Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Schedule Of Components Of Income Tax Expense (Benefit)	The provision for income taxes consists of the following components (in thousands): Year Ended December 31, 2019 2018 2017 Current: Federal $ 101,839 $ 90,216 $ 196,825 State 24,925 25,851 27,149 Foreign 81,081 77,508 58,123 Total current provision for income taxes $ 207,845 $ 193,575 $ 282,097 Deferred: Federal $ 22,173 $ 14,977 $ (37,486 ) State 6,376 4,386 4,044 Foreign (21,064 ) (21,543 ) (13,095 ) Total deferred provision (benefit) for income taxes $ 7,485 $ (2,180 ) $ (46,537 ) Provision for income taxes $ 215,330 $ 191,395 $ 235,560
Schedule Of Income from Continuing Operations Before Provision for Income Taxes, Domestic and Foreign	Income taxes have been based on the following components of income from continuing operations before provision for income taxes (in thousands): Year Ended December 31, 2019 2018 2017 Domestic $ 616,842 $ 562,758 $ 575,148 Foreign 174,180 180,673 191,479 Income from continuing operations before provision for income taxes $ 791,022 $ 743,431 $ 766,627
Schedule Of Effective Income Tax Rate Reconciliation	The U.S. federal statutory rate is reconciled to the effective tax rate as follows: Year Ended December 31, 2019 2018 2017 U.S. federal statutory rate 21.0 % 21.0 % 35.0 % U.S. federal tax reform - federal deferred tax rate change — % — % (9.5 )% U.S. federal tax reform - transition tax on foreign earnings 0.1 % (1.3 )% 6.6 % State income taxes, net of state credits and federal tax impact 3.2 % 3.5 % 2.8 % Impact of rates on international operations 1.4 % 0.9 % (3.2 )% Excess tax benefits from stock-based compensation (0.3 )% (0.6 )% (1.0 )% Non-deductible expenses 0.9 % 1.6 % 1.1 % Other, net 0.9 % 0.6 % (1.1 )% Effective tax rate 27.2 % 25.7 % 30.7 %
Schedule Of Deferred Tax Assets and Liabilities	The significant components of our deferred tax assets and liabilities are as follows (in thousands): December 31, 2019 2018 Deferred Tax Assets: Accrued expenses and reserves $ 51,869 $ 60,337 Qualified and nonqualified retirement plans 31,053 20,525 Inventory 12,679 15,474 Accounts receivable 14,025 16,208 Interest deduction carryforwards 25,448 20,392 Stock-based compensation 4,755 4,859 Operating lease assets, net 303,705 — Net operating loss carryforwards 16,287 13,222 Other 11,777 12,370 Total deferred tax assets, gross 471,598 163,387 Less: valuation allowance (41,815 ) (34,779 ) Total deferred tax assets $ 429,783 $ 128,608 Deferred Tax Liabilities: Goodwill and other intangible assets $ 219,879 $ 216,699 Property, plant and equipment 100,461 87,839 Trade name 108,039 116,615 Operating lease liabilities 292,498 — Other 8,916 15,511 Total deferred tax liabilities $ 729,793 $ 436,664 Net deferred tax liability $ (300,010 ) $ (308,056 )
Schedule Of Deferred Tax Assets And Liabilities Classification	Deferred tax assets and liabilities are reflected on our Consolidated Balance Sheets as follows (in thousands): December 31, 2019 2018 Noncurrent deferred tax assets $ 10,119 $ 3,378 Noncurrent deferred tax liabilities 310,129 311,434
Schedule Of Unrecognized Tax Benefits Rollforward	A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows (in thousands): 2019 2018 2017 Balance at January 1 $ 1,237 $ 1,690 $ 2,146 Additions for acquired tax positions 1,376 — 73 Additions based on tax positions related to the current year 50 5 5 Lapse of statutes of limitations (297 ) (458 ) (534 ) Cumulative translation adjustment (49 ) — — Balance at December 31 $ 2,317 $ 1,237 $ 1,690

Segment and Geographic Inform_2

Segment and Geographic Information (Tables)	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule Of Financial Performance By Reportable Segment	The following tables present our financial performance by reportable segment for the periods indicated (in thousands): North America Europe Specialty Eliminations Consolidated Year Ended December 31, 2019 Revenue: Third Party $ 5,208,589 $ 5,838,124 $ 1,459,396 $ — $ 12,506,109 Intersegment 705 — 4,646 (5,351 ) — Total segment revenue $ 5,209,294 $ 5,838,124 $ 1,464,042 $ (5,351 ) $ 12,506,109 Segment EBITDA $ 712,957 $ 454,220 $ 161,184 $ — $ 1,328,361 Depreciation and amortization (1) 93,747 191,195 29,464 — 314,406 Year Ended December 31, 2018 Revenue: Third Party $ 5,181,964 $ 5,221,754 $ 1,472,956 $ — $ 11,876,674 Intersegment 645 — 4,724 (5,369 ) — Total segment revenue $ 5,182,609 $ 5,221,754 $ 1,477,680 $ (5,369 ) $ 11,876,674 Segment EBITDA $ 660,153 $ 422,721 $ 168,525 $ — $ 1,251,399 Depreciation and amortization (1) 87,348 178,473 28,256 — 294,077 Year Ended December 31, 2017 Revenue: Third Party $ 4,798,901 $ 3,636,811 $ 1,301,197 $ — $ 9,736,909 Intersegment 750 — 4,319 (5,069 ) — Total segment revenue $ 4,799,651 $ 3,636,811 $ 1,305,516 $ (5,069 ) $ 9,736,909 Segment EBITDA $ 655,275 $ 319,156 $ 142,159 $ — $ 1,116,590 Depreciation and amortization (1) 86,303 120,805 23,095 — 230,203
Reconciliation Of Segment EBITDA To Net Income Table	The table below provides a reconciliation of Net Income to Segment EBITDA (in thousands): Year Ended December 31, 2019 2018 2017 Net income $ 545,034 $ 483,168 $ 530,228 Less: net income attributable to continuing noncontrolling interest 2,800 3,050 (3,516 ) Less: net income attributable to discontinued noncontrolling interest 974 — — Net income attributable to LKQ stockholders 541,260 480,118 533,744 Subtract: Net income (loss) from discontinued operations 1,619 (4,397 ) (6,746 ) Net income attributable to discontinued noncontrolling interest (974 ) — — Net income from continuing operations attributable to LKQ stockholders 540,615 484,515 540,490 Add: Depreciation and amortization 290,770 274,213 219,546 Depreciation and amortization - cost of goods sold 21,007 19,864 10,657 Depreciation and amortization - restructuring expenses - cost of goods sold 305 — — Depreciation and amortization - restructuring expenses 2,324 — — Interest expense, net of interest income 136,274 144,536 100,620 (Gain) loss on debt extinguishment (128 ) 1,350 456 Provision for income taxes 215,330 191,395 235,560 EBITDA 1,206,497 1,115,873 1,107,329 Subtract: Equity in (losses) earnings of unconsolidated subsidiaries (1) (32,277 ) (64,471 ) 5,907 Fair value loss on Mekonomen derivative instrument (1) — (5,168 ) — Gain due to resolution of acquisition related matter 12,063 — — Gains on bargain purchases and previously held equity interests (2) 1,157 2,418 3,870 Add: Restructuring and acquisition related expenses (3) 34,658 32,428 19,672 Restructuring expenses - cost of goods sold (4) 20,654 — — Inventory step-up adjustment - acquisition related — 403 3,584 Impairment of net assets held for sale and goodwill (5) (6) 47,102 35,682 — Change in fair value of contingent consideration liabilities 393 (208 ) (4,218 ) Segment EBITDA $ 1,328,361 $ 1,251,399 $ 1,116,590
Schedule Of Capital Expenditures By Reportable Segment	The following table presents capital expenditures by reportable segment (in thousands): Year Ended December 31, 2019 2018 2017 Capital Expenditures North America $ 131,643 $ 129,391 $ 95,823 Europe 121,596 99,885 71,494 Specialty 12,491 20,751 8,175 Discontinued operations — — 3,598 Total capital expenditures $ 265,730 $ 250,027 $ 179,090
Schedule Of Assets By Reportable Segment	The following table presents assets by reportable segment (in thousands): December 31, 2019 2018 2017 Receivables, net North America $ 419,452 $ 411,818 $ 379,666 Europe 636,216 649,174 555,372 Specialty 75,464 93,091 92,068 Total receivables, net 1,131,132 1,154,083 1,027,106 Inventories North America 991,062 1,076,306 1,076,393 Europe 1,401,801 1,410,264 964,068 Specialty 379,914 349,505 340,322 Total inventories 2,772,777 2,836,075 2,380,783 Property, plant and equipment, net North America 610,573 570,508 537,286 Europe 538,951 562,600 293,539 Specialty 84,876 87,054 82,264 Total property, plant and equipment, net 1,234,400 1,220,162 913,089 Operating lease assets, net (1) North America 768,164 — — Europe 457,035 — — Specialty 83,312 — — Total operating lease assets, net 1,308,511 — — Equity method investments North America 17,624 16,404 336 Europe (2) 121,619 162,765 208,068 Total equity method investments 139,243 179,169 208,404 Other unallocated assets 6,193,893 6,003,913 4,837,490 Total assets $ 12,779,956 $ 11,393,402 $ 9,366,872
Revenue from External Customers by Geographic Area	The following table sets forth our revenue by geographic area (in thousands): Year Ended December 31, 2019 2018 2017 Revenue United States $ 6,220,267 $ 6,192,636 $ 5,662,016 United Kingdom 1,599,074 1,665,317 1,548,212 Germany 1,578,543 974,514 1,744 Other countries 3,108,225 3,044,207 2,524,937 Total revenue $ 12,506,109 $ 11,876,674 $ 9,736,909
Schedule Of Tangible Long-Lived Assets By Geographic Area	The following table sets forth our tangible long-lived assets by geographic area (in thousands): December 31, 2019 2018 2017 Long-lived assets (1) United States $ 1,467,701 $ 620,125 $ 583,236 Germany 340,995 217,476 41 United Kingdom 330,113 165,145 178,021 Other countries 404,102 217,416 151,791 Total long-lived assets $ 2,542,911 $ 1,220,162 $ 913,089

Selected Quarterly Data (unau_2

Selected Quarterly Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Selected Quarterly Data [Abstract]
Quarterly Financial Information [Text Block]	Selected Quarterly Data (unaudited) The following table presents unaudited selected quarterly financial data for the two years ended December 31, 2019 . The operating results for any quarter are not necessarily indicative of the results for any future period. Quarter Ended (1) (In thousands, except per share data) Dec. 31 Sep. 30 Jun. 30 Mar. 31 (2) 2019 Revenue $ 3,009,860 $ 3,147,773 $ 3,248,173 $ 3,100,303 Gross margin 1,196,014 1,200,329 1,247,187 1,208,264 Operating income (1) 206,768 231,364 236,111 222,400 Income from continuing operations (2) 140,833 151,812 151,707 99,063 Net income from discontinued operations (5) (6) 440 781 398 — Net income 141,273 152,593 152,105 99,063 Net income (loss) attributable to continuing noncontrolling interest 479 (46 ) 1,352 1,015 Net income attributable to discontinued noncontrolling interest 406 376 192 — Net income attributable to LKQ stockholders 140,388 152,263 150,561 98,048 Basic earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Diluted earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Quarter Ended (3) (In thousands, except per share data) Dec. 31 (2) (4) (5) Sep. 30 (2) Jun. 30 Mar. 31 2018 Revenue $ 3,002,781 $ 3,122,378 $ 3,030,751 $ 2,720,764 Gross margin 1,161,809 1,197,198 1,161,879 1,053,971 Operating income (4) 164,146 234,733 256,794 226,568 Income from continuing operations (2) 42,456 134,480 157,866 152,763 Net loss from discontinued operations (5) (4,397 ) — — — Net income 38,059 134,480 157,866 152,763 Net income (loss) attributable to continuing noncontrolling interest 2,010 378 859 (197 ) Net income attributable to LKQ stockholders 36,049 134,102 157,007 152,960 Basic earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.51 $ 0.49 Diluted earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.50 $ 0.49 (1) Reflects impairment charges of $15 million , $33 million , and $2 million to net assets held for sale recorded in the first, second, and fourth quarters of 2019, respectively, and a $4 million net reversal of impairment in the third quarter of 2019. See "Net Assets Held for Sale" in Note 4, "Summary of Significant Accounting Policies ," for further information. (2) Reflects impairment charges of $40 million in the first quarter of 2019, and charges of $48 million and $23 million in the fourth and third quarters of 2018, respectively, related to the Mekonomen equity investment. See "Investments in Unconsolidated Subsidiaries" in Note 4, "Summary of Significant Accounting Policies ," for further information. (3) The 2018 amounts presented above include the results of operations of Stahlgruber, from its acquisition effective May 30, 2018. (4) Reflects a $33 million goodwill impairment charge on the Aviation reporting unit recorded in the fourth quarter of 2018. See "Intangible Assets" in Note 4, "Summary of Significant Accounting Policies ," for further information. (5) In the first quarter of 2017, LKQ completed the sale of the glass manufacturing business of its PGW subsidiary. During the fourth quarter of 2019, we incurred costs related to the disposal of the glass manufacturing business of PGW and settled certain tax matters. During the fourth quarter of 2018, we recorded a final tax expense adjustment of $4 million to the loss on sale of the glass manufacturing business of PGW. See "Glass Manufacturing Business" in Note 3, "Discontinued Operations" for further information regarding the disposal of the glass manufacturing business. (6) In the second quarter of 2019, we classified the acquired Stahlgruber Czech Republic wholesale business as discontinued operations. See "Czech Republic" in Note 3, "Discontinued Operations" for further information regarding the planned disposal of the Czech Republic business. (7) The sum of the quarters may not equal the total of the respective year's earnings per share on either a basic or diluted basis due to changes in weighted average shares outstanding throughout the year.
Quarterly Financial Information [Table Text Block]	The following table presents unaudited selected quarterly financial data for the two years ended December 31, 2019 . The operating results for any quarter are not necessarily indicative of the results for any future period. Quarter Ended (1) (In thousands, except per share data) Dec. 31 Sep. 30 Jun. 30 Mar. 31 (2) 2019 Revenue $ 3,009,860 $ 3,147,773 $ 3,248,173 $ 3,100,303 Gross margin 1,196,014 1,200,329 1,247,187 1,208,264 Operating income (1) 206,768 231,364 236,111 222,400 Income from continuing operations (2) 140,833 151,812 151,707 99,063 Net income from discontinued operations (5) (6) 440 781 398 — Net income 141,273 152,593 152,105 99,063 Net income (loss) attributable to continuing noncontrolling interest 479 (46 ) 1,352 1,015 Net income attributable to discontinued noncontrolling interest 406 376 192 — Net income attributable to LKQ stockholders 140,388 152,263 150,561 98,048 Basic earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Diluted earnings per share from continuing operations (7) $ 0.46 $ 0.49 $ 0.49 $ 0.31 Quarter Ended (3) (In thousands, except per share data) Dec. 31 (2) (4) (5) Sep. 30 (2) Jun. 30 Mar. 31 2018 Revenue $ 3,002,781 $ 3,122,378 $ 3,030,751 $ 2,720,764 Gross margin 1,161,809 1,197,198 1,161,879 1,053,971 Operating income (4) 164,146 234,733 256,794 226,568 Income from continuing operations (2) 42,456 134,480 157,866 152,763 Net loss from discontinued operations (5) (4,397 ) — — — Net income 38,059 134,480 157,866 152,763 Net income (loss) attributable to continuing noncontrolling interest 2,010 378 859 (197 ) Net income attributable to LKQ stockholders 36,049 134,102 157,007 152,960 Basic earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.51 $ 0.49 Diluted earnings per share from continuing operations (7) $ 0.13 $ 0.42 $ 0.50 $ 0.49

Condensed Consolidating Finan_2

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Consolidating Financial Information [Abstract]
Consolidated Condensed Statements of Income	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 6,269,185 $ 6,384,822 $ (147,898 ) $ 12,506,109 Cost of goods sold — 3,711,074 4,091,139 (147,898 ) 7,654,315 Gross margin — 2,558,111 2,293,683 — 4,851,794 Selling, general and administrative expenses 45,914 1,732,282 1,802,104 — 3,580,300 Restructuring and acquisition related expenses — 8,644 28,335 — 36,979 Impairment of net assets held for sale and goodwill — 39,355 7,747 — 47,102 Depreciation and amortization 479 105,288 185,003 — 290,770 Operating (loss) income (46,393 ) 672,542 270,494 — 896,643 Other expense (income): Interest expense 52,376 299 85,829 — 138,504 Intercompany interest (income) expense, net (58,762 ) 32,899 25,863 — — Gain on debt extinguishment — (128 ) — — (128 ) Interest income and other (income) expense, net (13,269 ) (20,376 ) 890 — (32,755 ) Total other (income) expense, net (19,655 ) 12,694 112,582 — 105,621 (Loss) income from continuing operations before (benefit) provision for income taxes (26,738 ) 659,848 157,912 — 791,022 (Benefit) provision for income taxes (7,062 ) 169,173 53,219 — 215,330 Equity in earnings (losses) of unconsolidated subsidiaries — 1,220 (33,497 ) — (32,277 ) Equity in earnings of subsidiaries 559,317 10,824 — (570,141 ) — Income from continuing operations 539,641 502,719 71,196 (570,141 ) 543,415 Net income (loss) from discontinued operations 1,619 (1,253 ) 1,673 (420 ) 1,619 Net income 541,260 501,466 72,869 (570,561 ) 545,034 Less: net income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: net income attributable to discontinued noncontrolling interest — — 974 — 974 Net income attributable to LKQ stockholders $ 541,260 $ 501,466 $ 69,095 $ (570,561 ) $ 541,260	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 6,276,951 $ 5,766,958 $ (167,235 ) $ 11,876,674 Cost of goods sold — 3,783,376 3,685,676 (167,235 ) 7,301,817 Gross margin — 2,493,575 2,081,282 — 4,574,857 Selling, general and administrative expenses 27,394 1,713,118 1,612,219 — 3,352,731 Restructuring and acquisition related expenses — 3,140 29,288 — 32,428 Impairment of net assets held for sale and goodwill — 33,244 — — 33,244 Depreciation and amortization 137 99,665 174,411 — 274,213 Operating (loss) income (27,531 ) 644,408 265,364 — 882,241 Other expense (income): Interest expense 66,794 640 78,943 — 146,377 Intercompany interest (income) expense, net (65,072 ) 40,756 24,316 — — Loss on debt extinguishment 1,350 — — — 1,350 Interest income and other (income) expense, net (1,082 ) (15,586 ) 7,751 — (8,917 ) Total other expense, net 1,990 25,810 111,010 — 138,810 (Loss) income from continuing operations before (benefit) provision for income taxes (29,521 ) 618,598 154,354 — 743,431 (Benefit) provision for income taxes (18,600 ) 163,937 46,058 — 191,395 Equity in earnings (losses) of unconsolidated subsidiaries — 173 (64,644 ) — (64,471 ) Equity in earnings of subsidiaries 495,436 16,598 — (512,034 ) — Income from continuing operations 484,515 471,432 43,652 (512,034 ) 487,565 Net loss from discontinued operations (4,397 ) (4,397 ) — 4,397 (4,397 ) Net income 480,118 467,035 43,652 (507,637 ) 483,168 Less: net income attributable to noncontrolling interest — — 3,050 — 3,050 Net income attributable to LKQ stockholders $ 480,118 $ 467,035 $ 40,602 $ (507,637 ) $ 480,118	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Income (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 5,780,904 $ 4,116,161 $ (160,156 ) $ 9,736,909 Cost of goods sold — 3,458,304 2,639,138 (160,156 ) 5,937,286 Gross margin — 2,322,600 1,477,023 — 3,799,623 Selling, general and administrative expenses 29,884 1,557,883 1,127,640 — 2,715,407 Restructuring and acquisition related expenses — 7,352 12,320 — 19,672 Depreciation and amortization 118 96,717 122,711 — 219,546 Operating (loss) income (30,002 ) 660,648 214,352 — 844,998 Other expense (income): Interest expense 66,030 546 35,064 — 101,640 Intercompany interest (income) expense, net (17,873 ) (2,383 ) 20,256 — — Loss on debt extinguishment 456 — — — 456 Interest income and other expense (income), net 242 (14,323 ) (9,644 ) — (23,725 ) Total other expense (income), net 48,855 (16,160 ) 45,676 — 78,371 (Loss) income from continuing operations before provision for income taxes (78,857 ) 676,808 168,676 — 766,627 Provision for income taxes 28,684 168,288 38,588 — 235,560 Equity in earnings of unconsolidated subsidiaries — — 5,907 — 5,907 Equity in earnings of subsidiaries 648,031 21,836 — (669,867 ) — Income from continuing operations 540,490 530,356 135,995 (669,867 ) 536,974 Net (loss) income from discontinued operations (6,746 ) (6,746 ) 2,050 4,696 (6,746 ) Net income 533,744 523,610 138,045 (665,171 ) 530,228 Less: net loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Net income attributable to LKQ stockholders $ 533,744 $ 523,610 $ 141,561 $ (665,171 ) $ 533,744
Consolidated Condensed Statements of Comprehensive Income (Loss)	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 541,260 $ 501,466 $ 72,869 $ (570,561 ) $ 545,034 Less: net income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: net income attributable to discontinued noncontrolling interest — — 974 — 974 Net income attributable to LKQ stockholders 541,260 501,466 69,095 (570,561 ) 541,260 Other comprehensive (loss) income: Foreign currency translation, net of tax 6,704 5,477 5,360 (10,837 ) 6,704 Net change in unrealized gains/losses on cash flow hedges, net of tax (9,016 ) — — — (9,016 ) Net change in unrealized gains/losses on pension plans, net of tax (23,859 ) (6,088 ) (17,771 ) 23,859 (23,859 ) Net change in other comprehensive income from unconsolidated subsidiaries 236 — 236 (236 ) 236 Other comprehensive loss (25,935 ) (611 ) (12,175 ) 12,786 (25,935 ) Comprehensive income 515,325 500,855 60,694 (557,775 ) 519,099 Less: comprehensive income attributable to continuing noncontrolling interest — — 2,800 — 2,800 Less: comprehensive income attributable to discontinued noncontrolling interest — — 974 — 974 Comprehensive income attributable to LKQ stockholders $ 515,325 $ 500,855 $ 56,920 $ (557,775 ) $ 515,325	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 480,118 $ 467,035 $ 43,652 $ (507,637 ) $ 483,168 Less: net income attributable to noncontrolling interest — — 3,050 — 3,050 Net income attributable to LKQ stockholders 480,118 467,035 40,602 (507,637 ) 480,118 Other comprehensive (loss) income: Foreign currency translation, net of tax (108,523 ) (8,628 ) (75,462 ) 84,090 (108,523 ) Net change in unrealized gains/losses on cash flow hedges, net of tax 350 — — — 350 Net change in unrealized gains/losses on pension plans, net of tax 697 1,266 (569 ) (697 ) 697 Net change in other comprehensive loss from unconsolidated subsidiaries (2,343 ) — (2,343 ) 2,343 (2,343 ) Other comprehensive loss (109,819 ) (7,362 ) (78,374 ) 85,736 (109,819 ) Comprehensive income (loss) 370,299 459,673 (34,722 ) (421,901 ) 373,349 Less: comprehensive income attributable to noncontrolling interest — — 3,050 — 3,050 Comprehensive income (loss) attributable to LKQ stockholders $ 370,299 $ 459,673 $ (37,772 ) $ (421,901 ) $ 370,299 LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 533,744 $ 523,610 $ 138,045 $ (665,171 ) $ 530,228 Less: net loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Net income attributable to LKQ stockholders 533,744 523,610 141,561 (665,171 ) 533,744 Other comprehensive income (loss): Foreign currency translation, net of tax 200,596 16,743 206,049 (222,792 ) 200,596 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,447 (133 ) — 133 3,447 Net change in unrealized gains/losses on pension plans, net of tax (6,035 ) (3,254 ) (2,781 ) 6,035 (6,035 ) Net change in other comprehensive loss from unconsolidated subsidiaries (1,309 ) — (1,309 ) 1,309 (1,309 ) Other comprehensive income 196,699 13,356 201,959 (215,315 ) 196,699 Comprehensive income 730,443 536,966 340,004 (880,486 ) 726,927 Less: comprehensive loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Comprehensive income attributable to LKQ stockholders $ 730,443 $ 536,966 $ 343,520 $ (880,486 ) $ 730,443	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Comprehensive Income (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 533,744 $ 523,610 $ 138,045 $ (665,171 ) $ 530,228 Less: net loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Net income attributable to LKQ stockholders 533,744 523,610 141,561 (665,171 ) 533,744 Other comprehensive income (loss): Foreign currency translation, net of tax 200,596 16,743 206,049 (222,792 ) 200,596 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,447 (133 ) — 133 3,447 Net change in unrealized gains/losses on pension plans, net of tax (6,035 ) (3,254 ) (2,781 ) 6,035 (6,035 ) Net change in other comprehensive loss from unconsolidated subsidiaries (1,309 ) — (1,309 ) 1,309 (1,309 ) Other comprehensive income 196,699 13,356 201,959 (215,315 ) 196,699 Comprehensive income 730,443 536,966 340,004 (880,486 ) 726,927 Less: comprehensive loss attributable to noncontrolling interest — — (3,516 ) — (3,516 ) Comprehensive income attributable to LKQ stockholders $ 730,443 $ 536,966 $ 343,520 $ (880,486 ) $ 730,443
Consolidated Condensed Balance Sheets	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Balance Sheets (In thousands) December 31, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 240,476 $ 44,326 $ 238,218 $ — $ 523,020 Receivables, net — 304,416 826,716 — 1,131,132 Intercompany receivables, net 9,822 — 18,261 (28,083 ) — Inventories — 1,289,389 1,483,388 — 2,772,777 Prepaid expenses and other current assets 11,606 94,146 155,138 — 260,890 Total current assets 261,904 1,732,277 2,721,721 (28,083 ) 4,687,819 Property, plant and equipment, net 423 640,648 593,329 — 1,234,400 Operating lease assets, net 3,701 808,726 496,084 — 1,308,511 Intangible assets: Goodwill — 2,012,282 2,394,253 — 4,406,535 Other intangibles, net 564 249,497 600,277 — 850,338 Investment in subsidiaries 5,345,724 127,551 — (5,473,275 ) — Intercompany notes receivable 1,021,380 120,099 — (1,141,479 ) — Equity method investments — 17,624 121,619 — 139,243 Other noncurrent assets 64,080 39,204 49,826 — 153,110 Total assets $ 6,697,776 $ 5,747,908 $ 6,977,109 $ (6,642,837 ) $ 12,779,956 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 2,883 $ 397,647 $ 542,265 $ — $ 942,795 Intercompany payables, net — 18,261 9,822 (28,083 ) — Accrued expenses: Accrued payroll-related liabilities 8,837 66,877 103,489 — 179,203 Refund liability — 46,789 50,525 — 97,314 Other accrued expenses 8,895 119,352 161,436 — 289,683 Other current liabilities 282 23,641 97,700 121,623 Current portion of operating lease liabilities 224 119,538 101,765 — 221,527 Current portion of long-term obligations 202,220 3,124 121,023 — 326,367 Total current liabilities 223,341 795,229 1,188,025 (28,083 ) 2,178,512 Long-term operating lease liabilities, excluding current portion 3,883 721,584 412,130 — 1,137,597 Long-term obligations, excluding current portion 1,331,015 14,268 2,370,106 — 3,715,389 Intercompany notes payable — 517,361 624,118 (1,141,479 ) — Deferred income taxes 5,229 161,574 143,326 — 310,129 Other noncurrent liabilities 125,432 80,611 159,629 — 365,672 Redeemable noncontrolling interest — — 24,077 — 24,077 Stockholders' equity: Total Company stockholders’ equity 5,008,876 3,457,281 2,015,994 (5,473,275 ) 5,008,876 Noncontrolling interest — — 39,704 — 39,704 Total stockholders’ equity 5,008,876 3,457,281 2,055,698 (5,473,275 ) 5,048,580 Total liabilities and stockholders' equity $ 6,697,776 $ 5,747,908 $ 6,977,109 $ (6,642,837 ) $ 12,779,956	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Balance Sheets (In thousands) December 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 25,633 $ 29,285 $ 276,843 $ — $ 331,761 Receivables, net 310 316,726 837,047 — 1,154,083 Intercompany receivables, net 6,978 — 12,880 (19,858 ) — Inventories — 1,343,612 1,492,463 — 2,836,075 Prepaid expenses and other current assets 18,611 99,356 81,063 — 199,030 Total current assets 51,532 1,788,979 2,700,296 (19,858 ) 4,520,949 Property, plant and equipment, net 1,547 600,054 618,561 — 1,220,162 Intangible assets: Goodwill — 1,973,364 2,408,094 — 4,381,458 Other intangibles, net 260 272,451 656,041 — 928,752 Investment in subsidiaries 5,224,006 111,826 — (5,335,832 ) — Intercompany notes receivable 1,220,582 10,515 — (1,231,097 ) — Equity method investments — 16,404 162,765 — 179,169 Other noncurrent assets 70,283 40,548 52,081 — 162,912 Total assets $ 6,568,210 $ 4,814,141 $ 6,597,838 $ (6,586,787 ) $ 11,393,402 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 2,454 $ 343,116 $ 596,828 $ — $ 942,398 Intercompany payables, net — 12,880 6,978 (19,858 ) — Accrued expenses: Accrued payroll-related liabilities 6,652 70,267 95,086 — 172,005 Refund liability — 50,899 53,686 — 104,585 Other accrued expenses 5,454 105,672 177,299 — 288,425 Other current liabilities 283 17,860 42,966 — 61,109 Current portion of long-term obligations 8,459 2,932 110,435 — 121,826 Total current liabilities 23,302 603,626 1,083,278 (19,858 ) 1,690,348 Long-term obligations, excluding current portion 1,628,677 13,532 2,546,465 — 4,188,674 Intercompany notes payable — 597,283 633,814 (1,231,097 ) — Deferred income taxes 8,045 135,355 168,034 — 311,434 Other noncurrent liabilities 125,888 99,147 139,159 — 364,194 Total Company stockholders’ equity 4,782,298 3,365,198 1,970,634 (5,335,832 ) 4,782,298 Noncontrolling interest — — 56,454 — 56,454 Total stockholders’ equity 4,782,298 3,365,198 2,027,088 (5,335,832 ) 4,838,752 Total liabilities and stockholders' equity $ 6,568,210 $ 4,814,141 $ 6,597,838 $ (6,586,787 ) $ 11,393,402
Consolidated Condensed Statements of Cash Flows	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2019 Parent Guarantors Non-Guarantors (1) Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 500,658 $ 275,443 $ 378,100 $ (90,168 ) $ 1,064,033 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (564 ) (134,992 ) (130,174 ) — (265,730 ) Proceeds from disposals of property, plant and equipment — 6,821 9,224 — 16,045 Investment and intercompany note activity with subsidiaries 130,600 — — (130,600 ) — Acquisitions, net of cash and restricted cash acquired — (23,643 ) (3,653 ) — (27,296 ) Proceeds from disposal of businesses — 19,682 (1,213 ) — 18,469 Investments in unconsolidated subsidiaries — (3,250 ) (4,344 ) — (7,594 ) Receipts of deferred purchase price on receivables under factoring arrangements — 358,995 — (358,995 ) — Other investing activities, net 967 286 — — 1,253 Net cash provided by (used in) investing activities 131,003 223,899 (130,160 ) (489,595 ) (264,853 ) CASH FLOWS FROM FINANCING ACTIVITIES: Purchase of treasury stock (291,813 ) — — — (291,813 ) Borrowings under revolving credit facilities 218,000 — 387,708 — 605,708 Repayments under revolving credit facilities (316,692 ) — (417,779 ) — (734,471 ) Repayments under term loans (8,750 ) — — — (8,750 ) Borrowings under receivables securitization facility — — 36,600 — 36,600 Repayments under receivables securitization facility — — (146,600 ) — (146,600 ) Payment of notes issued and assumed debt from acquisitions (19,123 ) — — — (19,123 ) Repayments of other debt, net (749 ) (2,185 ) (30,988 ) — (33,922 ) Other financing activities, net 2,309 — (10,607 ) — (8,298 ) Investment and intercompany note activity with parent — (34,026 ) (96,574 ) 130,600 — Dividends — (449,163 ) — 449,163 — Net cash used in financing activities (416,818 ) (485,374 ) (278,240 ) 579,763 (600,669 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — 1,073 (1,977 ) — (904 ) Net increase (decrease) in cash, cash equivalents and restricted cash 214,843 15,041 (32,277 ) — 197,607 Cash, cash equivalents and restricted cash of continuing operations, beginning of period 25,633 29,285 282,332 — 337,250 Cash, cash equivalents and restricted cash of continuing and discontinued operations, end of period 240,476 44,326 250,055 — 534,857 Less: Cash and cash equivalents of discontinued operations, end of period — — 6,470 — 6,470 Cash, cash equivalents and restricted cash, end of period $ 240,476 $ 44,326 $ 243,585 $ — $ 528,387	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2018 Parent Guarantors Non-Guarantors (1) Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 481,138 $ 277,595 $ 111,213 $ (159,207 ) $ 710,739 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (848 ) (136,033 ) (113,146 ) — (250,027 ) Proceeds from disposals of property, plant and equipment — 22,393 5,266 — 27,659 Investment and intercompany note activity with subsidiaries (97,261 ) — — 97,261 — Return of investment in subsidiaries 143,524 — — (143,524 ) — Acquisitions, net of cash and restricted cash acquired — (8,217 ) (1,206,778 ) — (1,214,995 ) Investments in unconsolidated subsidiaries — (12,216 ) (48,084 ) — (60,300 ) Receipts of deferred purchase price on receivables under factoring arrangements — 317,091 36,991 (317,091 ) 36,991 Other investing activities, net 887 180 666 — 1,733 Net cash provided by (used in) investing activities 46,302 183,198 (1,325,085 ) (363,354 ) (1,458,939 ) CASH FLOWS FROM FINANCING ACTIVITIES: Debt issuance costs (5,434 ) — (15,694 ) — (21,128 ) Proceeds from issuance of Euro Notes (2026/28) — — 1,232,100 — 1,232,100 Purchase of treasury stock (60,000 ) — — — (60,000 ) Borrowings under revolving credit facilities 765,632 — 901,693 — 1,667,325 Repayments under revolving credit facilities (884,863 ) — (644,107 ) — (1,528,970 ) Repayments under term loans (354,800 ) — — — (354,800 ) Borrowings under receivables securitization facility — — 10,120 — 10,120 Repayments under receivables securitization facility — — (120 ) — (120 ) Payment of notes issued and assumed debt from acquisitions — — (54,888 ) — (54,888 ) Repayments of other debt, net (385 ) (3,636 ) (7,709 ) — (11,730 ) Other financing activities, net 3,683 — 1,403 — 5,086 Investment and intercompany note activity with parent — (68,435 ) 165,696 (97,261 ) — Dividends — (392,883 ) (226,939 ) 619,822 — Net cash (used in) provided by financing activities (536,167 ) (464,954 ) 1,361,555 522,561 882,995 Effect of exchange rate changes on cash, cash equivalents and restricted cash — (1,685 ) (75,626 ) — (77,311 ) Net (decrease) increase in cash, cash equivalents and restricted cash (8,727 ) (5,846 ) 72,057 — 57,484 Cash, cash equivalents and restricted cash, beginning of period 34,360 35,131 210,275 — 279,766 Cash, cash equivalents and restricted cash, end of period $ 25,633 $ 29,285 $ 282,332 $ — $ 337,250	LKQ CORPORATION AND SUBSIDIARIES Condensed Consolidating Statements of Cash Flows (In thousands) Year Ended December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 243,011 $ 186,459 $ 95,617 $ (6,187 ) $ 518,900 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (648 ) (87,102 ) (91,340 ) — (179,090 ) Proceeds from disposals of property, plant and equipment — 6,490 2,217 — 8,707 Investment and intercompany note activity with subsidiaries 57,735 — — (57,735 ) — Acquisitions, net of cash and restricted cash acquired — (335,582 ) (177,506 ) — (513,088 ) Proceeds from disposals of businesses — 305,740 (4,443 ) — 301,297 Investments in unconsolidated subsidiaries — (2,750 ) (4,914 ) — (7,664 ) Receipts of deferred purchase price on receivables under factoring arrangements (1) — 294,925 — (294,925 ) — Other investing activities, net — — 5,243 — 5,243 Net cash provided by (used in) investing activities 57,087 181,721 (270,743 ) (352,660 ) (384,595 ) CASH FLOWS FROM FINANCING ACTIVITIES: Debt issuance costs (4,267 ) — — — (4,267 ) Borrowings under revolving credit facilities 558,000 — 281,171 — 839,171 Repayments under revolving credit facilities (824,862 ) — (121,615 ) — (946,477 ) Repayments under term loans (27,884 ) — — — (27,884 ) Borrowings under receivables securitization facility — — 11,245 — 11,245 Repayments under receivables securitization facility — — (11,245 ) — (11,245 ) (Repayments) borrowings of other debt, net (1,700 ) (1,318 ) 22,724 — 19,706 Other financing activities, net 1,945 (1,336 ) 6,575 — 7,184 Investment and intercompany note activity with parent — (65,498 ) 7,763 57,735 — Dividends — (301,112 ) — 301,112 — Net cash (used in) provided by financing activities (298,768 ) (369,264 ) 196,618 358,847 (112,567 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — 706 22,806 — 23,512 Net increase (decrease) in cash, cash equivalents and restricted cash 1,330 (378 ) 44,298 — 45,250 Cash, cash equivalents and restricted cash of continuing operations, beginning of period 33,030 35,360 159,010 — 227,400 Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period — 149 6,967 — 7,116 Cash, cash equivalents and restricted cash of continuing and discontinued operations, beginning of period 33,030 35,509 165,977 — 234,516 Cash, cash equivalents and restricted cash, end of period $ 34,360 $ 35,131 $ 210,275 $ — $ 279,766

Business Business - Additional

Business Business - Additional Information (Details)	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of Facilities	1,700

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands, € in Millions, £ in Millions	1 Months Ended		3 Months Ended	6 Months Ended			12 Months Ended					13 Months Ended	15 Months Ended
	Nov. 30, 2017	Jul. 30, 2017	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)shares	Jun. 30, 2018EUR (€)shares	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016GBP (£)	Dec. 31, 2016USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2017USD ($)	Jun. 30, 2018EUR (€)	Apr. 09, 2018USD ($)	Apr. 09, 2018EUR (€)
Business Acquisition
Gains on bargain purchases								$ 2,418
Cash used in acquisitions, net of cash acquired							$ 27,296	1,214,995	$ 513,088
Notes issued								11,347
Other purchase price obligations								2,461
Operating income							$ 896,643	882,241	$ 844,998
Number of acquisitions							7		26
Contingent consideration liabilities								3,107
Revenue							$ 12,506,109	11,876,674	$ 9,736,909
Warn Industries [Member]
Business Acquisition
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles								5,000
Business Acquisition, Effective Date of Acquisition	Nov. 30, 2017
2017 Acquisitions Excluding Warn [Member]
Business Acquisition
Business Acquisition Cost Of Acquired Entity Other Purchase Price Obligations Non Interest Bearing, Post Purchase Adjustment								(4,000)
Stahlgruber [Member]
Business Acquisition
Business Acquisition, Effective Date of Acquisition			May 30, 2018
Total acquisition date fair value of the consideration for acquisitions					$ 1,400,000	€ 1,200
Gains on bargain purchases								0
Cash used in acquisitions, net of cash acquired					1,100,000	€ 1,000		1,127,446
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned			$ 251,000		$ 251,000									€ 215
Notes issued								0
Other purchase price obligations								(6,084)
Debt Instrument, Face Amount															$ 1,200,000	€ 1,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares					8,055,569	8,055,569
Business Acquisition, Goodwill, Expected Tax Deductible Amount							$ 300,000
Operating income								52,000
Contingent consideration liabilities								0
Goodwill, Purchase Accounting Adjustments				$ (7,000)				(908,000)				$ (915,000)
Revenue								1,100,000
All 2018 Acquisitions excluding Stahlgruber [Member]
Business Acquisition
Total acquisition date fair value of the consideration for acquisitions								99,000
Cash used in acquisitions, net of cash acquired								85,000
Notes issued								11,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount								4,000
Operating income								3,000
Goodwill, Acquired During Period								68,000
Revenue								$ 46,000
Wholesale - NA [Member]
Business Acquisition
Number of acquisitions							3	4	6
Self Service [Member]
Business Acquisition
Number of acquisitions							1
Wholesale Europe [Member]
Business Acquisition
Number of acquisitions							3	9	16
All 2019 Acquisitions excluding Stahlgruber Czech Republic Wholesale Business [Member]
Business Acquisition
Total acquisition date fair value of the consideration for acquisitions							$ 63,000
Cash used in acquisitions, net of cash acquired							29,000
Settlement of pre-existing balances							5,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt							8,000
Notes issued							21,000
Other purchase price obligations							2,000
2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Total acquisition date fair value of the consideration for acquisitions									$ 542,000
Cash used in acquisitions, net of cash acquired									510,000
Notes issued									20,000				$ 20,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount									21,000				21,000
All 2017 Acquisitions [Member]
Business Acquisition
Operating income									2,000
Goodwill, Acquired During Period									307,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual									227,000
Andrew Page
Business Acquisition
Total acquisition date fair value of the consideration for acquisitions										£ 16	$ 20,000
Gains on bargain purchases									$ 2,000		$ 8,000		10,000
Required divestiture of branches due to Governmental review of the acquisition										10.00%	10.00%
Specialty
Business Acquisition
Number of acquisitions									4
Aftermarket Parts Distribution Businesses In Europe [Member]
Business Acquisition
Business Acquisition, Effective Date of Acquisition		Jul. 30, 2017
Number of acquisitions								4
Payment To Former Owners [Member] | All 2018 Acquisitions excluding Stahlgruber [Member]
Business Acquisition
Contingent consideration liabilities								$ (3,000)
Payment To Former Owners [Member] | All 2019 Acquisitions excluding Stahlgruber Czech Republic Wholesale Business [Member]
Business Acquisition
Contingent consideration liabilities							(7,000)
Payment To Former Owners [Member] | 2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Contingent consideration liabilities									$ (6,000)				(6,000)
Payment To Former Owners [Member] | Maximum [Member] | All 2018 Acquisitions excluding Stahlgruber [Member]
Business Acquisition
Contingent consideration liabilities								(5,000)
Payment To Former Owners [Member] | Maximum [Member] | All 2019 Acquisitions excluding Stahlgruber Czech Republic Wholesale Business [Member]
Business Acquisition
Contingent consideration liabilities							(8,000)
Payment To Former Owners [Member] | Maximum [Member] | 2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Contingent consideration liabilities									(19,000)				(19,000)
Non-interest Bearing [Member] | 2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Contingent consideration liabilities									(5,000)				$ (5,000)
Specialty
Business Acquisition
Revenue							$ 1,464,042	$ 1,477,680	$ 1,305,516

Purchase Price Allocations for

Purchase Price Allocations for Acquisitions (Details) $ in Thousands, € in Billions	6 Months Ended		12 Months Ended				15 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2018EUR (€)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2017USD ($)
Business Acquisition
Receivables				$ 163,997
Receivable reserves				(3,736)
Inventories				394,259
Prepaid expenses and other current assets				12,821
Property, plant and equipment				277,003
Goodwill			$ 4,406,535	4,381,458	$ 3,536,511		$ 3,536,511
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				320,414
Other noncurrent assets				16,662
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities				(83,415)
Current liabilities assumed				366,904
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt				84,800
Other noncurrent liabilities assumed				91,130
Consolidation, Less Than Wholly Owned Subsidiary, Non Controlling Interest Acquired, Value			10,365	44,110
Contingent consideration liabilities				(3,107)
Other purchase price obligations				2,461
Stock issued in acquisitions			0	251,334	0
Notes issued				11,347
Gains on bargain purchases				2,418
Settlement of other purchase price obligations (non-interest bearing)				1,711
Cash used in acquisitions, net of cash acquired			27,296	1,214,995	513,088
Defined Benefit Plan, Benefit Obligation, Business Combination			$ 2,071	79,211
Warn Industries [Member]
Business Acquisition
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles				5,000
2017 Acquisitions Excluding Warn [Member]
Business Acquisition
Business Acquisition Cost Of Acquired Entity Other Purchase Price Obligations Non Interest Bearing, Post Purchase Adjustment				(4,000)
2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Notes issued					20,000		20,000
Cash used in acquisitions, net of cash acquired					510,000
Stahlgruber [Member]
Business Acquisition
Receivables				144,826
Receivable reserves				2,818
Inventories				380,238
Prepaid expenses and other current assets				10,970
Property, plant and equipment				271,292
Goodwill				908,253
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				285,255
Other noncurrent assets				16,625
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities				78,130
Current liabilities assumed				(346,788)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt				(79,925)
Other noncurrent liabilities assumed				(80,824)
Consolidation, Less Than Wholly Owned Subsidiary, Non Controlling Interest Acquired, Value				(44,110)
Contingent consideration liabilities				0
Other purchase price obligations				(6,084)
Stock issued in acquisitions				(251,334)
Notes issued				0
Gains on bargain purchases				0
Settlement of other purchase price obligations (non-interest bearing)				0
Cash used in acquisitions, net of cash acquired	$ 1,100,000	€ 1		1,127,446
Defined Benefit Plan, Benefit Obligation, Business Combination				79,000
All 2018 Acquisitions and adjustments to 2017 acquisitions excluding Stahlgruber
Business Acquisition
Receivables				19,171
Receivable reserves				918
Inventories				14,021
Prepaid expenses and other current assets				1,851
Property, plant and equipment				5,711
Goodwill				64,637
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				35,159
Other noncurrent assets				37
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities				5,285
Current liabilities assumed				(20,116)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt				(4,875)
Other noncurrent liabilities assumed				(10,306)
Consolidation, Less Than Wholly Owned Subsidiary, Non Controlling Interest Acquired, Value				0
Contingent consideration liabilities				(3,107)
Other purchase price obligations				3,623
Stock issued in acquisitions				0
Notes issued				(11,347)
Gains on bargain purchases				(2,418)
Settlement of other purchase price obligations (non-interest bearing)				1,711
Cash used in acquisitions, net of cash acquired				87,549
All 2018 and 2017 Acquisitions [Member]
Business Acquisition
Goodwill				$ 972,890
Andrew Page
Business Acquisition
Gains on bargain purchases					$ 2,000	$ 8,000	$ 10,000

Pro Forma Effect of Businesses

Pro Forma Effect of Businesses Acquired (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition
Revenue	$ 12,506,109	$ 11,876,674	$ 9,736,909
Income from continuing operations	543,415	487,565	536,974
Less: net income (loss) attributable to continuing noncontrolling interest	$ 2,800	$ 3,050	$ (3,516)
Basic earnings per share from continuing operations	$ 1.75	$ 1.55	$ 1.74
Diluted earnings per share from continuing operations (1)	$ 1.75	$ 1.54	$ 1.73
Stahlgruber [Member]
Business Acquisition
Revenue		$ 1,100,000
All 2018 Acquisitions excluding Stahlgruber [Member]
Business Acquisition
Revenue		46,000
All Completed Acquisitions [Member]
Business Acquisition
Acquisition Related Costs, Net of Tax	$ 1,499	14,524	$ 8,787
Pro Forma [Member]
Business Acquisition
Revenue	12,530,723	12,856,212	11,942,523
Income from continuing operations	563,059	525,989	567,224
Income (Loss) from Continuing Operations, Net of Tax, Excluding Portion Attributable to Noncontrolling Interest	560,259	520,140	569,645
Pro Forma [Member] | Stahlgruber [Member]
Business Acquisition
Revenue	0	815,405	1,756,893
Income from continuing operations	14,481	17,309	4,796
Pro Forma [Member] | All 2019 Acquisitions excluding Stahlgruber Czech Republic Wholesale Business [Member]
Business Acquisition
Revenue	24,614
Income from continuing operations	3,664
Business Acquisition Pro Forma Net Income attributable to noncontrolling interest	$ 0
Pro Forma [Member] | All 2019 and 2018 acquisitions excluding Stahlgruber and Stahlgruber Czech Republic Wholesale Business [Member]
Business Acquisition
Revenue		164,133
Income from continuing operations		6,591
Business Acquisition Pro Forma Net Income attributable to noncontrolling interest		$ 2,799
Pro Forma [Member] | All 2018 and 2017 acquisitions excluding Stahlgruber [Member]
Business Acquisition
Revenue			448,721
Income from continuing operations			16,667
Business Acquisition Pro Forma Net Income attributable to noncontrolling interest			$ 1,095

Discontinued Operations Results

Discontinued Operations Results Of Discontinued Operations (Details) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended							12 Months Ended
	Mar. 01, 2017	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Capital Expenditures									$ 265,730	$ 250,027	$ 179,090
Purchases under supply agreement									30,000	24,000	42,000
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Impairment on net assets of discontinued operations		$ 2,000	$ (4,000)	$ 33,000	$ 15,000				47,000	35,682
Net income (loss) from discontinued operations						$ 4,000			1,619	(4,397)	(6,746)
Deferred income taxes									7,109	(2,180)	(46,537)
DCO Footnote 2 [Abstract]
Payments to Acquire Equity Method Investments									7,594	60,300	7,664
PGW
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Provided by (Used in) Operating Activities, Discontinued Operations	$ (4,000)
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue									0	0	111,130
Disposal Group, Including Discontinued Operation, Costs of Goods Sold									0	0	100,084
Disposal Group, Including Discontinued Operation, General and Administrative Expense									1,626	0	8,369
Disposal Group, Including Discontinued Operation, Operating Income (Loss)									(1,626)	0	2,677
Disposal Group, Including Discontinued Operation, Other Expense									0	0	1,204
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax									(1,626)	0	3,881
Discontinued Operation, Tax Effect of Discontinued Operation									(1,572)	0	3,598
disposal group, including discontinued operation, equity in earnings									0	0	(534)
IncomeLossFromDiscontinuedOperationsExcludingLossOnSaleNetOfTaxAttributableToReportingEntity									(54)	0	(251)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax									0	(4,397)	(6,495)
Net income (loss) from discontinued operations									$ (54)	$ (4,397)	$ (6,746)
DCO Footnote 1 [Abstract]
Interest Allocated to Discontinued Operations	2,000
DCO Footnote 2 [Abstract]
Loss on sale of business						$ (4,000)	$ (2,000)	$ 9,000
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation								4,000
Discontinued Operation, Intra-Entity Amounts, Discontinued Operation after Disposal, Expense								6,000
Proceeds from Divestiture of Businesses, Net of Cash Divested								$ 301,000
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(4,000)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	15,000
Intercompany Sales between Continuing and Discontinued Operations	$ (8,000)

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended			12 Months Ended
	Mar. 01, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 29, 2019	Dec. 31, 2016
Net income (loss) from discontinued operations		$ 4,000			$ 1,619	$ (4,397)	$ (6,746)
Proceeds from disposal of businesses					18,469	0	301,297
Cash disposed as part of divestment		0	$ 0			0	0		$ 7,116
Commitments and Contingencies Disclosure [Abstract]
Purchases under supply agreement					30,000	24,000	42,000
Disposal Group, Discontinued Operations, Cash and Cash Equivalents		0	0		(6,470)	0	0
Less: net income attributable to discontinued noncontrolling interest					974	0	0
Stahlgruber Czech Republic Wholesale Business [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt								$ 6,000
Net income (loss) from discontinued operations					2,000
Commitments and Contingencies Disclosure [Abstract]
Disposal Group, Discontinued Operations, Cash and Cash Equivalents								$ 5,000
Settlement of pre-existing balances					6,000
Less: net income attributable to discontinued noncontrolling interest					1,000
PGW
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 4,000	$ 2,000	$ (9,000)
Proceeds from Divestiture of Businesses, Net of Cash Divested				301,000
Net income (loss) from discontinued operations					$ (54)	$ (4,397)	$ (6,746)
Proceeds from disposal of businesses				316,000
Cash disposed as part of divestment				$ 15,000
Cash Provided by (Used in) Operating Activities, Discontinued Operations	$ (4,000)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(4,000)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	15,000
Commitments and Contingencies Disclosure [Abstract]
Intercompany Sales between Continuing and Discontinued Operations	$ (8,000)
Vitro S. A. B. de C.V. [Member] | PGW
Disposal Date				Mar. 1, 2017

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	Dec. 01, 2016USD ($)	Dec. 31, 2019USD ($)shares	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)shares	Sep. 30, 2018USD ($)	Sep. 30, 2018SEK (kr)	Mar. 31, 2018USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)shares	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019SEK (kr)shares	Oct. 25, 2019USD ($)	Jan. 01, 2019USD ($)
Summary of Significant Accounting Policies [Line Items]
Operating Lease, Liability		$ 1,359,124									$ 1,359,124
Operating lease assets, net		1,308,511				$ 0					1,308,511		$ 0	$ 0
Disposal Group, Continuing Operations, Revenue												$ 55,000
Number of Businesses Divested			2
Goodwill		4,406,535				4,381,458					4,406,535		4,381,458	3,536,511
Other intangibles, net		850,338				928,752					850,338		928,752
Restricted cash included in Other noncurrent assets		5,367				5,489					5,367		5,489	0
Self Insurance Reserve		$ 109,000				105,000					$ 109,000		105,000
Impairment of net assets held for sale and goodwill						33,000							(33,244)
Amount that fair value exceeds carrying value		25.00%									25.00%					25.00%
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Reserve for uncollectible accounts		$ 53,000				57,000					$ 53,000		57,000
Inventory Disclosure [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory						394,259							394,259
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Depreciation Methods											straight-line method
Depreciation											$ 174,000		157,000	129,000
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense											140,000		137,000	102,000
Estimated annual amortization expense in year one		120,000									120,000
Estimated annual amortization expense in year two		93,000									93,000
Estimated annual amortization expense in year three		80,000									80,000
Estimated annual amortization expense in year four		70,000									70,000
Estimated annual amortization expense in year five		64,000									64,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Equity method investments		139,243				179,169					139,243		179,169	208,404
Fair Value Measured On Recurring Basis Gains Losses Included In Earnings													5,000
Investments in unconsolidated subsidiaries											7,594		60,300	7,664
Derivative Asset, Noncurrent		3,443				22,636					3,443		22,636
Impairment of equity method investments											41,057		70,895	0
Equity in (losses) earnings of unconsolidated subsidiaries											$ 32,277		$ 64,471	$ (5,907)
Share Price of the Equity Method Investment | kr																kr 93
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal statutory rate											21.00%		21.00%	35.00%
Adoption of ASU 2018-02 (see Note 4)													$ 5,345
Self Insurance Reserve, Current		54,000				52,000					$ 54,000		52,000
Outstanding letters of credit		69,000				65,000					69,000		65,000
Stock Repurchase Program, Authorized Amount		1,000,000				500,000					$ 1,000,000		$ 500,000				$ 500,000
Stock Repurchased During Period, Shares | shares											10,900,000		2,300,000
Treasury Stock, Value		$ 351,813				$ 60,000					$ 351,813		$ 60,000
Percentage Threshold For Uncertain Tax Positions											50.00%
Treasury Stock, Common, Shares | shares		13,195,915				2,271,707					13,195,915		2,271,707			13,195,915
Payments for Repurchase of Common Stock											$ 291,813		$ 60,000	$ 0
Stock Repurchase Program Remaining Authorized Repurchases, Amount		$ 648,000									648,000
Goodwill, Impaired, Accumulated Impairment Loss		33,244									33,244
Impairment of Long-Lived Assets to be Disposed of		2,000	$ (4,000)	$ 33,000	$ 15,000						47,000		$ 35,682
Disposal Group, Continuing Operations, Assets		19,000									19,000
Disposal Group, Continuing Operations, Liabilities		$ 9,000									$ 9,000
Mekonomen [Member]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Equity Method Investment, Ownership Percentage						26.60%							26.60%
Revolving Credit Facility [Member]
Summary of Significant Accounting Policies [Line Items]
Weighted average interest rates		1.60%				1.90%					1.60%		1.90%			1.60%
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Line of Credit Facility, Remaining Borrowing Capacity		$ 1,800,000									$ 1,800,000
ManufacturedProducts [Member]
Inventory Disclosure [Abstract]
Inventory, Raw Materials and Supplies, Gross		17,000				$ 17,000					17,000		$ 17,000
Inventory, Work in Process, Gross		3,000				2,000					3,000		2,000
Inventory, Finished Goods, Gross		6,000				4,000					6,000		4,000
Stahlgruber [Member]
Summary of Significant Accounting Policies [Line Items]
Goodwill						908,253							908,253
Inventory Disclosure [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory						380,238							380,238
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Goodwill, Purchase Accounting Adjustments										$ 7,000			908,000		$ 915,000
Warn Industries [Member]
Summary of Significant Accounting Policies [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles													5,000
Mekonomen [Member]
Summary of Significant Accounting Policies [Line Items]
Equity Method Investments, Fair Value Disclosure		149,000									149,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Equity method investments		111,000									111,000
Equity Method Investment, Ownership Percentage	26.50%
Investments in unconsolidated subsidiaries	$ 181,000					48,000
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		5,000									5,000
Impairment of equity method investments					$ 40,000	48,000	$ 23,000				40,000		71,000
Proceeds from Equity Method Investment, Distribution							$ 8,000	kr 67,000,000
Noncontrolling Interest [Member]
Summary of Significant Accounting Policies [Line Items]
Dividends Payable		7,000									7,000
Accumulated Other Comprehensive Income (Loss)
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Adoption of ASU 2018-02 (see Note 4)									$ 5,000				5,345
Accounting Standards Update 2016-02 [Member]
Summary of Significant Accounting Policies [Line Items]
Operating Lease, Liability																		$ 1,300,000
Operating lease assets, net																		$ 1,300,000
Right to acquire equity method investment [Domain] | Mekonomen [Member]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Fair Value Measured On Recurring Basis Gains Losses Included In Earnings											0		(5,168)	0
Amendment No. 3, Fourth Amended and Restate Credit Agreement [Member] | Revolving Credit Facility [Member]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Outstanding letters of credit		69,000									69,000
Europe [Member]
Summary of Significant Accounting Policies [Line Items]
Operating lease assets, net		457,035				0					457,035		0	0
Goodwill		2,280,901				2,300,289					2,280,901		2,300,289	1,414,898
Impairment of net assets held for sale and goodwill													0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Equity method investments		121,619				162,765					121,619		162,765	208,068
Equity in (losses) earnings of unconsolidated subsidiaries											33,000		65,000	6,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss		0									0
Disposal Group, Continuing Operations, Goodwill		(5,000)									(5,000)
North America [Member]
Summary of Significant Accounting Policies [Line Items]
Operating lease assets, net		768,164				0					768,164		0	0
Goodwill		1,718,044				1,673,532					1,718,044		1,673,532	1,709,354
Impairment of net assets held for sale and goodwill													(33,244)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Equity method investments		17,624				$ 16,404					17,624		$ 16,404	$ 336
Equity in (losses) earnings of unconsolidated subsidiaries											1,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss		$ 33,244									33,244
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Summary of Significant Accounting Policies [Line Items]
Disposal Group, Continuing Operations, Revenue											$ 87,000

Summary of Signficant Account_4

Summary of Signficant Accounting Policies Schedule of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Product Information
Inventories		$ 394,259
Inventories	$ 2,772,777	2,836,075	$ 2,380,783
Aftermarket and refurbished products
Product Information
Inventories	2,297,895	2,309,458
Salvage and remanufactured products
Product Information
Inventories	447,908	503,199
ManufacturedProducts [Member]
Accounting Policies [Abstract]
Inventory, Raw Materials, Gross	17,000	17,000
Inventory, Work in Process, Gross	3,000	2,000
Inventory, Finished Goods, Gross	6,000	4,000
Product Information
Inventories	$ 26,974	$ 23,418

Summary of Signficant Account_5

Summary of Signficant Accounting Policies Schedule of Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2019
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Buildings and improvements | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Machinery and equipment | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Computer equipment and software | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Furniture and Fixtures [Member] | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years

Summary of Signficant Account_6

Summary of Signficant Accounting Policies Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	$ 1,988,740	$ 1,840,442
Less—Accumulated depreciation	(807,680)	(685,751)
Depreciation	174,000	157,000	$ 129,000
Property, Plant and Equipment, Net	1,234,400	1,220,162	$ 913,089
Land and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	194,437	177,998
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	384,918	351,733
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	679,292	617,424
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	153,900	143,547
Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	156,334	150,824
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	52,601	58,919
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	295,534	278,687
Finance Lease Asset [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	71,724	61,310
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	$ 53,340	$ 65,471
Minimum | Land and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Minimum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Maximum [Member] | Land and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Maximum [Member] | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Maximum [Member] | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Maximum [Member] | Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years

Changes in Carrying Amount of G

Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss		$ (33,244)
Amount that fair value exceeds carrying value		25.00%
Goodwill [Roll Forward]
Beginning balance		$ 4,381,458	$ 3,536,511
Business acquisitions and adjustments to previously recorded goodwill		54,012	972,890
Goodwill reclassified to assets held for sale		(4,721)
Goodwill, Written off Related to Sale of Business Unit		(1,919)
Impairment of goodwill	$ (33,000)		33,244
Exchange rate effects		(22,295)	(94,699)
Ending balance	4,381,458	4,406,535	4,381,458
North America [Member]
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss		(33,244)
Goodwill [Roll Forward]
Beginning balance		1,673,532	1,709,354
Business acquisitions and adjustments to previously recorded goodwill		38,913	6,805
Goodwill reclassified to assets held for sale		0
Goodwill, Written off Related to Sale of Business Unit		0
Impairment of goodwill			33,244
Exchange rate effects		5,599	(9,383)
Ending balance	1,673,532	1,718,044	1,673,532
Europe [Member]
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss		0
Goodwill [Roll Forward]
Beginning balance		2,300,289	1,414,898
Business acquisitions and adjustments to previously recorded goodwill		15,099	970,923
Goodwill reclassified to assets held for sale		(4,721)
Goodwill, Written off Related to Sale of Business Unit		(1,919)
Impairment of goodwill			0
Exchange rate effects		(27,847)	(85,532)
Ending balance	2,300,289	2,280,901	2,300,289
Specialty
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss		0
Goodwill [Roll Forward]
Beginning balance		407,637	412,259
Business acquisitions and adjustments to previously recorded goodwill		0	(4,838)
Goodwill reclassified to assets held for sale		0
Goodwill, Written off Related to Sale of Business Unit		0
Impairment of goodwill			0
Exchange rate effects		(47)	216
Ending balance	407,637	407,590	407,637
Stahlgruber [Member]
Goodwill [Roll Forward]
Beginning balance		$ 908,253
Ending balance	$ 908,253		$ 908,253

Components of Other Intangibles

Components of Other Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets
Amount that fair value exceeds carrying value	25.00%
Gross carrying amount	$ 1,331,373	$ 1,279,145
Accumulated amortization	(562,335)	(431,693)
Net	769,038	847,452
Other intangibles, net	850,338	928,752
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			16 years 6 months
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets
Gross carrying amount	488,945	496,166
Accumulated amortization	(119,957)	(94,451)
Net	368,988	401,715
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			11 years 2 months 12 days
Customer and supplier relationships
Finite-Lived Intangible Assets
Gross carrying amount	580,052	593,517
Accumulated amortization	(321,650)	(247,464)
Net	258,402	346,053
Software and technology related assets [Member]
Finite-Lived Intangible Assets
Gross carrying amount	248,941	176,118
Accumulated amortization	(108,979)	(79,283)
Net	139,962	96,835
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			11 years 1 month 6 days
Covenants not to compete
Finite-Lived Intangible Assets
Gross carrying amount	13,435	13,344
Accumulated amortization	(11,749)	(10,495)
Net	$ 1,686	2,849
Customer and supplier relationships [Member]
Finite-Lived Intangible Assets
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			18 years 7 months 6 days
Warn Industries [Member]
Finite-Lived Intangible Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles		5,000
Maximum [Member] | Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	30 years
Maximum [Member] | Customer and supplier relationships
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum [Member] | Software and technology related assets [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	15 years
Maximum [Member] | Covenants not to compete
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	5 years
Minimum | Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	4 years
Minimum | Customer and supplier relationships
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum | Software and technology related assets [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum | Covenants not to compete
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	2 years
Trademarks [Member]
Finite-Lived Intangible Assets
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 81,300	$ 81,300

Changes in Warranty Reserve (De

Changes in Warranty Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Warranty Reserve [Roll Forward]
Beginning balance	$ 23,262	$ 23,151
Warranty expense	58,253	43,682
Warranty claims	(56,074)	(43,571)
Ending balance	$ 25,441	$ 23,262

Summary of Signficant Account_7

Summary of Signficant Accounting Policies Equity Method Investments (Details) $ in Thousands, kr in Millions	Dec. 01, 2016USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2018SEK (kr)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Other than Temporary Impairment						$ 41,057	$ 70,895	$ 0
Payments to Acquire Equity Method Investments						7,594	60,300	7,664
Equity in (losses) earnings of unconsolidated subsidiaries						32,277	64,471	(5,907)
Mekonomen [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Other than Temporary Impairment		$ 40,000	$ 48,000	$ 23,000		40,000	$ 71,000
Payments to Acquire Equity Method Investments	$ 181,000		$ 48,000
Equity Method Investment, Ownership Percentage	26.50%
Proceeds from Equity Method Investment, Distribution				$ 8,000	kr 67
Mekonomen [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage			26.60%				26.60%
Europe [Member]
Schedule of Equity Method Investments [Line Items]
Equity in (losses) earnings of unconsolidated subsidiaries						33,000	$ 65,000	$ 6,000
North America [Member]
Schedule of Equity Method Investments [Line Items]
Equity in (losses) earnings of unconsolidated subsidiaries						$ 1,000

Summary of Signficant Account_8

Summary of Signficant Accounting Policies Finite-Lived Intangible Assets Acquired as Part of Business Combination (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Stahlgruber [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 285,255,000
Stahlgruber [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	173,946,000
Stahlgruber [Member] | Customer and supplier relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	77,980,000
Stahlgruber [Member] | Software and technology related assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	33,329,000
Stahlgruber [Member] | Covenants not to compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	0
All 2018 Acquisitions excluding Stahlgruber [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	30,025,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	8,870,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Customer and supplier relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	20,779,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Software and technology related assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	376,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Covenants not to compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	0
All 2018 Acquisitions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	315,280,000
All 2018 Acquisitions [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	182,816,000
All 2018 Acquisitions [Member] | Customer and supplier relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	98,759,000
All 2018 Acquisitions [Member] | Software and technology related assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	33,705,000
All 2018 Acquisitions [Member] | Covenants not to compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 0

Summary of Signficant Account_9

Summary of Signficant Accounting Policies Finite-Lived Intangible Assets Acquired As Part Of Business Combination, Remaining Useful Life (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		16 years 6 months
Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		11 years 2 months 12 days
Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		18 years 7 months 6 days
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		11 years 1 month 6 days
Covenants not to compete [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		4 years 4 months 24 days
All 2018 Acquisitions excluding Stahlgruber [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years 6 months
All 2018 Acquisitions excluding Stahlgruber [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
All 2018 Acquisitions excluding Stahlgruber [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 10 months 24 days
All 2018 Acquisitions excluding Stahlgruber [Member] | Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years 6 months
Stahlgruber [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	12 years 4 months 24 days
Stahlgruber [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	18 years
Stahlgruber [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Stahlgruber [Member] | Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years 2 months 12 days
All 2018 Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	12 years
All 2018 Acquisitions [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	17 years 7 months 6 days
All 2018 Acquisitions [Member] | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years
All 2018 Acquisitions [Member] | Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years 2 months 12 days

Summary of Signficant Accoun_10

Summary of Signficant Accounting Policies Treasury Stock (Details) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 25, 2019
Treasury Stock [Abstract]
Stock Repurchased During Period, Shares	10.9	2.3
Stock Repurchase Program, Authorized Amount	$ 1,000,000	$ 500,000		$ 500,000
Payments for Repurchase of Common Stock	291,813	$ 60,000	$ 0
Stock Repurchase Program Remaining Authorized Repurchases, Amount	$ 648,000

Summary of Signficant Accoun_11

Summary of Signficant Accounting Policies Noncontrolling Interest (Details) € in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2019EUR (€)	Dec. 31, 2019SEK (kr)
Noncontrolling Interest [Line Items]
Share Price of the Equity Method Investment | kr							kr 93
Reedemable NCI, Put Option	$ 24,000		$ 24,000			€ 21,000
Redeemable NCI, Call Option	26,000		26,000			€ 23,000
Redeemable noncontrolling interest	24,077		24,077	$ 0
Payments to Acquire Additional Interest in Subsidiaries		$ 19,000
Notes issued in connection with purchase of noncontrolling interest			14,196	$ 0	$ 0
Adjustments to Additional Paid in Capital, Other			49,520
Europe [Member]
Noncontrolling Interest [Line Items]
Notes issued in connection with purchase of noncontrolling interest		14,000
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Dividends Payable	7,000		7,000
Adjustments to Additional Paid in Capital, Other	(12,000)	(10,000)	22,415
Additional Paid-in Capital [Member]
Noncontrolling Interest [Line Items]
Adjustments to Additional Paid in Capital, Other	(18,000)	$ (9,000)	27,105
Long Term [Member] | Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Dividends Payable	5,000		5,000
Short Term [Member] | Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Dividends Payable	$ 2,000		$ 2,000

Revenue Recognition Disaggreg_2

Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue Recognition [Line Items]
Deferred Service-Type Warranty Revenue	$ 27,067	$ 24,006	$ 19,465
Deferred Service-Type Revenue, Additions	43,381	38,736
Deferred Service-Type Revenue Recognized	(40,320)	(34,195)
Revenue	12,506,109	11,876,674	9,736,909
Contract with Customer, Refund Liability	97,000	105,000
Contract with Customer, Right to Recover Product	52,000	56,000
Revenue, Variable Consideration Reserve	108,000	103,000
North America [Member]
Revenue Recognition [Line Items]
Revenue	5,209,294	5,182,609	4,799,651
Europe [Member]
Revenue Recognition [Line Items]
Revenue	5,838,124	5,221,754	3,636,811
Specialty
Revenue Recognition [Line Items]
Revenue	1,464,042	1,477,680	1,305,516
Parts and Services
Revenue Recognition [Line Items]
Revenue	11,877,846	11,233,407	9,208,634
Parts and Services | North America [Member]
Revenue Recognition [Line Items]
Revenue	4,600,903	4,558,220	4,278,531
Parts and Services | Europe [Member]
Revenue Recognition [Line Items]
Revenue	5,817,547	5,202,231	3,628,906
Parts and Services | Specialty
Revenue Recognition [Line Items]
Revenue	1,459,396	1,472,956	1,301,197
Other Revenue
Revenue Recognition [Line Items]
Revenue	$ 628,263	$ 643,267	$ 528,275

Revenue Recognition Movement in

Revenue Recognition Movement in Standard Product Warranty Accrual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Product Warranty Liability [Line Items]
Revenue, Variable Consideration Reserve	$ 108,000	$ 103,000
Deferred Service-Type Warranty Revenue	27,067	24,006	$ 19,465
Deferred Revenue, Additions	43,381	38,736
Deferred Revenue, Revenue Recognized	$ 40,320	$ 34,195
Minimum
Product Warranty Liability [Line Items]
Standard Product Warranty Period	6 months
Maximum [Member]
Product Warranty Liability [Line Items]
Standard Product Warranty Period	36 months

Restructuring and Acquisition_2

Restructuring and Acquisition Related Expenses - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Acquisition Related Expenses [Abstract]
Business Combination, Acquisition Related Costs	$ 2	$ 18	$ 15
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	18	14	5
Stahlgruber [Member]
Acquisition Related Expenses [Abstract]
Business Combination, Acquisition Related Costs			4
Andrew Page
Acquisition Related Expenses [Abstract]
Business Combination, Acquisition Related Costs			$ 5
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	14	10
Maximum [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Expected future restructuring expenses	(5)
Specialty
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs		$ 3
1 LKQ Europe Program [Member] | Minimum [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Expected future restructuring expenses	(45)
1 LKQ Europe Program [Member] | Maximum [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Expected future restructuring expenses	(55)
2019 Global Restructuring Program [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	37
2019 Global Restructuring Program [Member] | Minimum [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Expected future restructuring expenses	(5)
2019 Global Restructuring Program [Member] | Maximum [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Expected future restructuring expenses	(10)
Cost of Sales [Member] | Andrew Page
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	4
Cost of Sales [Member] | 2019 Global Restructuring Program [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	17
Restructuring Charges And Business Combination Acquisition Related Costs [Member] | 2019 Global Restructuring Program [Member]
Acquisition And Restructuring Integration Plans [Abstract]
Restructuring Costs	$ 20

Equity Incentive Plans - Additi

Equity Incentive Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 42.58	$ 32.15
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	70,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	10,000,000
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year One	$ 16,776
Stock-based compensation expense	27,695	$ 22,760	$ 22,832
Share-based Payment Arrangement, Expense, Tax Benefit	$ (6,227)	$ (5,220)	$ (5,459)
RSUs [Abstract]
RSUs granted, shares	270,388	189,204	235,537
Stock Options [Abstract]
Share-based Payment Arrangement, Expense, after Tax	$ 21,468	$ 17,540	$ 17,373
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Two	10,863
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Three	6,054
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Four	2,641
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Five	182
Unrecognized Stock Based Compensation Expense Expected To Be Recognized Total	$ 36,516
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,612,026	1,475,682
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 27.82
Stock-based compensation expense	$ 27,695	$ 22,760	22,826
RSUs [Abstract]
RSUs granted, shares	1,021,535
Fair value of RSUs vested during the period	$ 22,000	$ 27,000	28,000
Performance Based RSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	136,170	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 27.69
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Period	3 years
RSUs [Abstract]
RSUs granted, shares	136,170
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 11,000	$ 8,000	7,000
RSUs [Abstract]
Reporting period of positive diluted earnings per share	5 years
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 0	0	6
Stock Options [Abstract]
Options granted during the period	0
Options vested during the period	0
Minimum | Stock options
Stock Options [Abstract]
Stock options expiration period	6 years
Maximum [Member] | RSUs
Stock Options [Abstract]
Vesting period	5 years
Maximum [Member] | Stock options
Stock Options [Abstract]
Stock options expiration period	10 years
Vesting period	5 years
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 27,218	22,291	22,398
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 477	469	434
Continuing Operations [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense		$ 22,760	$ 22,832

Stock-Based Compensation Schedu

Stock-Based Compensation Schedule of Unvested Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted Average Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	270,388	189,204	235,537
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 42.58	$ 32.15
Performance Based RSU [Member]
Shares Outstanding [Abstract]
Unvested RSUs, shares	136,170	0
Weighted Average Fair Value [Abstract]
Unvested RSUs, weighted average grant date fair value	$ 27.69	$ 0
RSUs expected to vest, weighted average remaining contractual term	2 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	136,170
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 27.69
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected To Vest, Number	136,170
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected To Vest, Weighted Average Grant Date Fair Value	$ 27.69
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected To Vest, Aggregate Intrinsic Value	$ 4,861
RSUs
Shares Outstanding [Abstract]
Unvested RSUs, shares	1,612,026	1,475,682
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 33.38
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 32.50
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(88,255)
Weighted Average Fair Value [Abstract]
Unvested RSUs, weighted average grant date fair value	$ 31.72	$ 34.94
RSUs expected to vest, weighted average remaining contractual term	2 years 6 months
RSUs expected to vest, aggregate intrinsic value	$ 52,054
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	1,021,535
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 27.82
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(796,936)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected To Vest, Number	1,458,089
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected To Vest, Weighted Average Grant Date Fair Value	$ 31.75

Stock-Based Compensation Sche_2

Stock-Based Compensation Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Aggregate Intrinsic Value [Abstract]
Stock options exercised, aggregate intrinsic value		$ 18,000	$ 21,000
Stock options
Shares Outstanding [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	114,594	1,051,494
Weighted Average Fair Value [Abstract]
Stock options outstanding, weighted average exercise price	$ 12.26	$ 10.15
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(926,809)
Stock options exercised, weighted average exercise price	$ 9.77
Stock options forfeited/canceled, weighted average exercise price	21.25
Exercisable and expected to vest stock options, weighted average exercise price	$ 12.26
Weighted Average Contractual Term [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 days
Exercisable and expected to vest stock options, weighted average remaining contractual term (years)	3 days
Aggregate Intrinsic Value [Abstract]
Stock options exercised, aggregate intrinsic value	$ 19,725
Stock options outstanding, aggregate intrinsic value	2,686
Exercisable and expected to vest stock options, aggregate intrinsic value	$ 2,686
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	114,594
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	(10,091)

Schedule of Stock-Based Compens

Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year One	$ 16,776
Unrecognized Stock Based Compensation Expense Expected To Be Recognized Total	36,516
Stock-based compensation expense	27,695	$ 22,760	$ 22,832
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Two	10,863
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Three	6,054
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Four	2,641
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Five	182
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 27,695	$ 22,760	$ 22,826

Earnings Per Share Earnings P_2

Earnings Per Share Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Income from continuing operations	$ 543,415	$ 487,565	$ 536,974
Denominator for basic earnings per share—Weighted-average shares outstanding	310,155	314,428	308,607
Effect of dilutive securities:
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding	310,969	315,849	310,649
Basic earnings per share from continuing operations	$ 1.75	$ 1.55	$ 1.74
Diluted earnings per share from continuing operations (1)	$ 1.75	$ 1.54	$ 1.73
RSUs
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	393	409	544
Performance Based RSU [Member]
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	0
Stock options
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	421	1,012	1,498

Schedule of Antidilutive Securi

Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities	586	410	37
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities	24	8	39

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	35.00%
Accumulated other comprehensive loss	$ (200,885)	$ (174,950)	$ (70,476)	$ (267,175)
Pretax income (loss)	(868)	(74,346)	162,262
Income tax effect	3,000	(4,742)	8,924
Reclassification of unrealized loss (gain)	(36,468)	(37,063)	46,571
Reclassification of deferred income taxes	8,544	8,675	(17,824)
Other comprehensive income from unconsolidated subsidiaries	236	2,343	1,309
Disposal of business, net	(379)		(1,925)
Adoption of ASU 2018-02 (see Note 4)		5,345
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(170,893)	(177,597)	(71,933)	(272,529)
Pretax income (loss)	7,083	(113,030)	206,451
Income tax effect	0	4,507	(7,366)
Reclassification of unrealized loss (gain)	0	0	0
Reclassification of deferred income taxes	0	0	0
Other comprehensive income from unconsolidated subsidiaries	0	0	0
Disposal of business, net	(379)		1,511
Adoption of ASU 2018-02 (see Note 4)		2,859
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	5,358	14,374	11,538	8,091
Pretax income (loss)	23,850	37,552	(44,550)
Income tax effect	(5,579)	(8,846)	16,390
Reclassification of unrealized loss (gain)	(35,686)	(37,009)	50,090
Reclassification of deferred income taxes	8,399	8,653	(18,483)
Other comprehensive income from unconsolidated subsidiaries	0	0	0
Disposal of business, net	0		0
Adoption of ASU 2018-02 (see Note 4)		2,486
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(31,934)	(8,075)	(8,772)	(2,737)
Pretax income (loss)	(31,801)	1,132	361
Income tax effect	8,579	(403)	(100)
Reclassification of unrealized loss (gain)	(782)	(54)	(3,519)
Reclassification of deferred income taxes	145	22	659
Other comprehensive income from unconsolidated subsidiaries	0	0	0
Disposal of business, net	0		(3,436)
Adoption of ASU 2018-02 (see Note 4)		0
Accumulated Gain (Loss) from Unconsoldated Subsidiaries [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(3,416)	(3,652)	(1,309)	$ 0
Pretax income (loss)	0	0	0
Income tax effect	0	0	0
Reclassification of unrealized loss (gain)	0	0	0
Reclassification of deferred income taxes	0	0	0
Other comprehensive income from unconsolidated subsidiaries	236	2,343	1,309
Disposal of business, net	0		0
Adoption of ASU 2018-02 (see Note 4)		0
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	(5,872)	(5,482)	(373)
Interest expense | Currency Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	(15,794)	(11,105)	(6,835)
Interest income and other income, net [Member] | Currency Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	$ (14,020)	$ (20,422)	$ 57,298

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2018
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02 (see Note 4)		$ 5,345
Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02 (see Note 4)	$ 5,000	$ 5,345

Long-Term Obligations - Additio

Long-Term Obligations - Additional Information (Details) $ in Thousands, € in Millions	Jan. 10, 2020USD ($)	Nov. 20, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Jan. 29, 2024USD ($)	Dec. 20, 2018USD ($)	Apr. 09, 2018EUR (€)	Dec. 01, 2017USD ($)	Apr. 14, 2016	May 09, 2013USD ($)
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				$ 326,648
Outstanding letters of credit			$ 65,000	69,000	$ 65,000
RestrictivePaymentsUnderBorrowingAgreement				1,900,000
Gain (Loss) on Extinguishment of Debt				128	(1,350)	$ (456)
Long-term Debt, Maturities, Repayments of Principal in Year Two				133,951
Long-term Debt, Maturities, Repayments of Principal in Year Three				25,912
Long-term Debt, Maturities, Repayments of Principal in Year Four				21,650
Long-term Debt, Maturities, Repayments of Principal in Year Five				2,427,714
Long-term Debt, Maturities, Repayments of Principal after Year Five				1,136,151
Debt and Lease Obligation			4,347,697	4,072,026	4,347,697
Interest expense				138,504	146,377	101,640
Repayments of Long-term Debt				8,750	354,800	$ 27,884
US Notes (2023) [Member]
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				185,000
Long-term Debt			600,000	600,000	600,000
Senior notes interest rate												4.75%
Extinguishment of Debt, Amount	$ 614,000
Gain (Loss) on Extinguishment of Debt	13,000
Long-term Debt, Maturities, Repayments of Principal in Year Two				105,000
Long-term Debt, Maturities, Repayments of Principal in Year Five				310,000
Payment for Debt Extinguishment or Debt Prepayment Cost	9,000
Interest expense	$ 4,000
Debt Instrument, Redemption Price, Percentage	101.583%
Loans Payable [Member]
Debt Instrument
Secured Debt		$ 350,000	350,000	341,250	350,000
Repayments of Long-term Debt		240,000
Euro Notes (2024)
Debt Instrument
Long-term Debt			573,350	560,650	573,350
Senior notes interest rate											3.875%
Euro Notes 2026/28 [Member]
Debt Instrument
Payments of Financing Costs				16,000
Long-term Debt			1,146,700	$ 1,121,300	1,146,700				€ 1,000
Debt Instrument, Redemption Price, Percentage				100.00%
Receivables securitization
Debt Instrument
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount			$ 110,000	$ 0	$ 110,000
Senior Notes 2026 [Member]
Debt Instrument
Debt Instrument Redemption Percentage of Principal Amount Eligible To Be Redeemed				35.00%
Senior Notes 2028 [Member]
Debt Instrument
Debt Instrument Redemption Percentage of Principal Amount Eligible To Be Redeemed				35.00%
Revolving Credit Facility [Member]
Debt Instrument
Weighted average interest rates			1.90%	1.60%	1.90%
Line of Credit Facility, Remaining Borrowing Capacity				$ 1,800,000
Amendment No. 3, Fourth Amended and Restate Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity		$ 3,150,000
Line of Credit Facility, Frequency of Payments				quarterly installments
Line of Credit Facility, Periodic Payment							$ 4,000
Increment change in applicable margin										0.25%
Long-Term Line of Credit, Current			$ 9,000	$ 18,000	$ 9,000
Outstanding letters of credit				69,000
Payments of Financing Costs					4,000
Amendment No. 3, Fourth Amended and Restate Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument
Line of Credit Facility, Commitment Fee Percentage			0.125%
Fourth Amended Credit Agreement | Revolving Credit Facility [Member]
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity										$ 2,750,000
Mitsubishi UFJ [Member] | Receivables securitization
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity								$ 110,000
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount			$ 110,000	0	110,000
Twenty Twenty Three [Domain] | US Notes (2023) [Member]
Debt Instrument
Long-term Debt												$ 600,000
TwentyTwentySix [Member] | Euro Notes 2026/28 [Member]
Debt Instrument
Long-term Debt | €									€ 750
Senior notes interest rate									3.625%
TwentyTwentyEight [Member] | Euro Notes 2026/28 [Member]
Debt Instrument
Long-term Debt | €									€ 250
Senior notes interest rate									4.125%
Net Receivables [Member] | Mitsubishi UFJ [Member] | Receivables securitization
Debt Instrument
Debt Instrument, Collateral Amount			$ 132,000	$ 132,000	$ 132,000
Maximum increment [Member] | Amendment No. 2, Fourth Amended and Restate Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument
Increment change in commitment fees				0.05%

Schedule of Long-Term Obligatio

Schedule of Long-Term Obligations (Details) $ in Thousands, € in Millions	Jan. 10, 2020USD ($)	Nov. 20, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Apr. 09, 2018EUR (€)	Apr. 14, 2016EUR (€)	May 09, 2013USD ($)
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months			$ 326,648
Borrowings under revolving credit facilities			605,708	$ 1,667,325	$ 839,171
Repayments of Long-term Debt			8,750	354,800	$ 27,884
Finance Lease, Liability			40,837	39,966
Other Debt			113,010	117,448
Long-term obligations, total			4,072,026	4,347,697
Deferred Finance Costs, Noncurrent, Net			(29,990)	(36,906)
Deferred Finance Costs, Current, Net			(280)	(291)
Long-term obligations, total, net			4,041,756	4,310,500
Current portion of long-term obligations			(326,367)	(121,826)
Long-term obligations, excluding current portion			3,715,389	4,188,674
Loans Payable [Member]
Debt Instrument
Borrowings under revolving credit facilities		$ 400,000
Repayments of Long-term Debt		240,000
Term loan		$ 350,000	341,250	350,000
Revolving Credit Facility [Member]
Debt Instrument
Long-term Line of Credit			1,268,008	1,387,177
US Notes (2023) [Member]
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months			185,000
Payment for Debt Extinguishment or Debt Prepayment Cost	$ 9,000
Long-term Debt			600,000	600,000
Euro Notes (2024)
Debt Instrument
Long-term Debt			560,650	573,350
Euro Notes 2026/28 [Member]
Debt Instrument
Long-term Debt			1,121,300	1,146,700		€ 1,000
Receivables securitization
Debt Instrument
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount			0	110,000
Notes payable
Debt Instrument
Notes Payable			26,971	23,056
Revolving Credit Facility [Member]
Debt Instrument
Line of Credit Facility, Remaining Borrowing Capacity			1,800,000
Mitsubishi UFJ [Member] | Receivables securitization
Debt Instrument
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount			$ 0	$ 110,000
Twenty Twenty Three [Domain] | US Notes (2023) [Member]
Debt Instrument
Long-term Debt								$ 600,000
Twenty Twenty Four [Domain] | Euro Notes (2024)
Debt Instrument
Long-term Debt | €							€ 500
TwentyTwentySix [Member] | Euro Notes 2026/28 [Member]
Debt Instrument
Long-term Debt | €						750
TwentyTwentyEight [Member] | Euro Notes 2026/28 [Member]
Debt Instrument
Long-term Debt | €						€ 250

Schedule of Long-Term Obligat_2

Schedule of Long-Term Obligations (Parenthetical) (Details) - USD ($) $ in Thousands	Jan. 10, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months		$ 326,648
Finance Lease, Weighted Average Discount Rate, Percent		4.10%	4.50%
Debt Issuance Costs, Gross		$ 30,000
Long-term Debt, Maturities, Repayments of Principal in Year Two		133,951
Long-term Debt, Maturities, Repayments of Principal in Year Five		2,427,714
US Notes (2023) [Member]
Debt Instrument
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months		185,000
Debt Instrument, Redemption Price, Percentage	101.583%
Long-term Debt, Maturities, Repayments of Principal in Year Two		105,000
Long-term Debt, Maturities, Repayments of Principal in Year Five		$ 310,000
Senior Notes 2024 [Member]
Debt Instrument
Debt Instrument, Redemption Price, Percentage		100.00%
Notes payable
Debt Instrument
Debt, Weighted Average Interest Rate		3.20%	2.00%
Other Long Term Debt
Debt Instrument
Debt, Weighted Average Interest Rate		1.80%	1.80%

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities (Details) $ in Thousands, € in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019EUR (€)	Dec. 31, 2018USD ($)
Derivative Asset, Current	$ 2,975		$ 211
Derivative Liability, Current	970		127
Settlement of Notional Amounts | €		€ 4
Derivative Asset, Noncurrent	3,443		22,636
Derivative Liability, Noncurrent	23,349		40,870
Interest Rate Swap Sold [Member]
Derivative, Notional Amount			110,000
Interest Rate Swap [Member]
Derivative, Notional Amount	480,000		480,000
Derivative Asset, Current	0		0
Derivative Liability, Current	0		0
Derivative Liability, Noncurrent	0		0
Cross Currency Interest Rate Contract [Member]
Derivative, Notional Amount	466,621		574,315
Derivative Asset, Current	2,975		211
Derivative Liability, Current	970		127
Derivative Asset, Noncurrent	181		7,669
Derivative Liability, Noncurrent	23,349		40,870
Interest Rate Swap [Member]
Derivative Asset, Noncurrent			14,967
Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Derivative Asset, Noncurrent	3,262
2019 [Member] | 2018 Cross Currency Swaps [Member] | Cross Currency Interest Rate Contract [Member]
Settlement of Notional Amounts	(92,000)	€ (80)
Prepaid expenses and other current assets and Other accrued expenses [Member]
Effect of Netting Derivative Instruments	1,000
Other noncurrent assets and Other noncurrent liabilities [Member]
Effect of Netting Derivative Instruments	(1,000)		$ (14,000)
Gains [Member]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	12,000
Derivative Losses [Member]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 8,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) $ in Thousands, € in Billions	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Apr. 09, 2018EUR (€)
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Borrowings Under Credit Facility	$ 1,600,000	$ 1,700,000
Derivative Liability, Noncurrent	23,349	40,870
Borrowings Under Credit Facility, FV	1,600,000	1,700,000
Fair Value, Recurring [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	67,055	70,496
Financial and Nonfinancial Liabilities, Fair Value Disclosure	99,839	95,190
Fair Value, Recurring [Member] | Cash Surrender Value [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	60,637	47,649
Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	3,262	14,967
Fair Value, Recurring [Member] | Contingent Consideration Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	11,539	5,209
Fair Value, Recurring [Member] | Deferred Compensation Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	63,981	48,984
Fair Value, Recurring [Member] | Cross Currency Interest Rate Contract [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	3,156	7,880
Financial and Nonfinancial Liabilities, Fair Value Disclosure	24,319	40,997
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Surrender Value [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Contingent Consideration Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Deferred Compensation Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cross Currency Interest Rate Contract [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	67,055	70,496
Financial and Nonfinancial Liabilities, Fair Value Disclosure	88,300	89,981
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Surrender Value [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	60,637	47,649
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure		14,967
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Contingent Consideration Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Deferred Compensation Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	63,981	48,984
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cross Currency Interest Rate Contract [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	3,156	7,880
Financial and Nonfinancial Liabilities, Fair Value Disclosure	24,319	40,997
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	11,539	5,209
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Surrender Value [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Contingent Consideration Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	11,539	5,209
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Deferred Compensation Liabilities [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cross Currency Interest Rate Contract [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Euro Notes 2026/28 [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Long-term Debt	1,121,300	1,146,700	€ 1
Long-term Debt, Fair Value	1,200,000	1,100,000
Euro Notes (2024)
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Long-term Debt	560,650	573,350
Long-term Debt, Fair Value	632,000	586,000
Receivables securitization
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	0	110,000
US Notes (2023) [Member]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Long-term Debt	600,000	600,000
Long-term Debt, Fair Value	$ 609,000	$ 574,000

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Classification [Line Items]
Operating Lease, Payments	$ 297,712
Operating Lease, Weighted Average Remaining Lease Term	9 years 6 months
Operating Lease, Not Yet Commenced, Expense	$ 144,000
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	288,726
Finance Lease, Liability, Payments, Due Next Twelve Months	10,121
Lease, Liability, Payments, Due Next Twelve Months	298,847
Lessee, Operating Lease, Liability, Payments, Due Year Two	249,168
Finance Lease, Liability, Payments, Due Year Two	8,743
Lease, Liability, Payments, Due Year Two	257,911
Lessee, Operating Lease, Liability, Payments, Due Year Three	200,546
Finance Lease, Liability, Payments, Due Year Three	7,166
Lease, Liability, Payments, Due Year Three	207,712
Lessee, Operating Lease, Liability, Payments, Due Year Four	167,858
Finance Lease, Liability, Payments, Due Year Four	3,591
Lease, Liability, Payments, Due Year Four	171,449
Lessee, Operating Lease, Liability, Payments, Due Year Five	138,502
Finance Lease, Liability, Payments, Due Year Five	3,138
Lease, Liability, Payments, Due Year Five	141,640
Lessee, Operating Lease, Liability, Payments Due After Year Six	760,030
Operating Leases, Future Minimum Payments, Due in Two Years		$ 294,269
Residual Value of Leased Asset	67,000
Operating lease assets, net	1,308,511	0	$ 0
Finance Lease, Right-of-Use Asset	39,077
Lease Right-of-Use-Asset	1,347,588
Current portion of operating lease liabilities	221,527	0
Finance Lease, Liability, Current	9,409
Long-term operating lease liabilities, excluding current portion	1,137,597	0
Finance Lease, Liability, Noncurrent	31,428
Lease Liability	1,399,961
Operating Leases, Future Minimum Payments, Due in Three Years		256,172
Operating Leases, Future Minimum Payments, Due in Four Years		210,632
Operating Leases, Future Minimum Payments, Due Thereafter		777,165
Operating Leases, Future Minimum Payments, Due in Five Years		158,763
Operating Leases, Future Minimum Payments, Due in Five Years		131,518
Operating Leases, Future Minimum Payments Due		1,828,519
Finance Lease, Liability, Payments, Due After Year Six	19,381
Lease, Liability, Payments, Due After Year Six	779,411
Lessee, Operating Lease, Liability, Payments, Due	1,804,830
Finance Lease, Liability, Payment, Due	52,140
Lease, Liability, Payments Due	1,856,970
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	445,706
Finance Lease, Liability, Undiscounted Excess Amount	11,303
Lease, Liability, Undiscounted Excess Amount	457,009
Operating Lease, Liability	1,359,124
Finance Lease, Liability	$ 40,837	$ 39,966
Finance Lease, Weighted Average Remaining Lease Term	9 years 2 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	5.20%
Finance Lease, Weighted Average Discount Rate, Percent	4.10%	4.50%
Finance Lease, Principal Payments	$ 11,744
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	13,326
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	144,142
Lease, Cost	432,509
Cost of Sales [Member]
Classification [Line Items]
Operating Lease, Cost	13,416
Selling, General and Administrative Expenses [Member]
Classification [Line Items]
Operating Lease, Cost	303,619
Short-term Lease, Cost	9,392
Variable Lease, Cost	95,899
Sublease Income	(1,640)
Depreciation and Amortization [Member]
Classification [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	10,277
Interest expense
Classification [Line Items]
Finance Lease, Interest Expense	$ 1,546
Minimum [Member]
Classification [Line Items]
Lessee, Lease, Renewal Term	1 year
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	1 year
Maximum [Member]
Classification [Line Items]
Lessee, Lease, Renewal Term	40 years
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	25 years

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Rate		1.30%	1.30%	1.50%
Defined Benefit Plan, Plan with Benefit Obligation in Excess of Plan Assets, Benefit Obligation (Deprecated 2018-01-31)		$ 225,388	$ 171,185
Defined Benefit Plan, Service Cost		$ 3,592	$ 3,215	$ 4,525
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		1.40%	2.10%
Defined Benefit Plan, Plan Assets, Contributions by Employer Including Benefits Paid to Participants	$ 13,000	$ 5,000
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		42,000
Defined Benefit Plan, Plan Assets, Business Combination		0	$ 251
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		2,558	3,018
Defined Benefit Plan, Plan Assets, Contributions by Employer		4,740	9,975
Defined Benefit Plan, Benefit Obligation		225,388	201,492	$ 126,031
Defined Benefit Plan, Benefit Obligation, Business Combination		2,071	79,211
Assets for Plan Benefits, Defined Benefit Plan		0	377
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation		222,607	169,097
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets		$ 83,305	$ 60,988
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase		1.70%	0.90%
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Interest Cost Rate Cost		2.50%	2.50%	3.00%
Defined Benefit Plan, Plan Assets, Amount		$ 83,305	$ 91,672	$ 82,852
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant		408	415
Defined Benefit Plan, Plan Assets, Benefits Paid		(6,770)	(2,788)
Defined Benefit Plan, Plan Assets, Payment for Settlement		(8,493)	0
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		(810)	(2,051)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held		1,424	2,556
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement		(1,181)	(541)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Assets Transferred into (out of) Level 3		(19,640)	255
Defined Benefit Plans, Plan Assets Level 3 Reconciliation, Currency Translation		(915)	(2,056)
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months		43,446
Defined Benefit Plan, Expected Future Benefit Payment, Year Five		5,474
Defined Benefit Plan, Expected Future Benefit Payment, Year Four		5,003
Defined Benefit Plan, Expected Future Benefit Payment, Year Three		4,890
Defined Benefit Plan, Expected Future Benefit Payment, Year Two		4,357
Liability, Defined Benefit Plan, Noncurrent		(130,329)	(106,917)
Defined Benefit Plan, Interest Cost		4,077	3,476	3,670
Defined Benefit Plan, Expected Return (Loss) on Plan Assets		(2,337)	(2,949)	(2,467)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)		0	0	(181)
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant		408	415
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		32,018	(989)
Defined Benefit Plan, Benefit Obligation, Benefits Paid		(6,849)	(4,447)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		6	0
Defined Benefit Plan, Benefit Obligation, Payment for Settlement		(8,493)	(756)
Defined Benefit Plan, Amortization of Gain (Loss)		(404)	(54)	473
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment		0	0	(3,811)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		(378)	$ 74	$ (4)
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter		$ 29,946
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase		1.80%	1.90%	1.30%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		3.10%	4.80%	5.00%
Liability, Defined Benefit Plan, Current		$ (11,754)	$ (3,280)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		(142,083)	(109,820)
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		(2,922)	(4,664)
Defined Benefit Plan, Accumulated Benefit Obligation		222,607	199,337
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year		1,000
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		(142,083)	(109,820)
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets		83,305	60,988
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)		4,550	3,762	$ 2,205
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		29,468	30,684
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		40,676	60,988	$ 60,774
Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		13,161
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	30,684
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	30,684
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Cash and Cash Equivalents [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0
Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		13,161	0
Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Mutual Fund [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		13,161
Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		433	0
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		433	0
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Short-term Investments [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0
U.S. Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		29,035	0
U.S. Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		29,035	0
U.S. Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
U.S. Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
U.S. Bonds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0
Insurance Contracts, at Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		40,676	60,988
Insurance Contracts, at Fair Value [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Insurance Contracts, at Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Insurance Contracts, at Fair Value [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		40,676	$ 60,988
Insurance Contracts, at Fair Value [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0
The US Plan [Member]
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		8,000
Interest income and other income, net [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		$ (1,000)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended			96 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2025	Dec. 31, 2016
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		$ 83,415
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 2,000	1,000
Unrecognized Tax Benefits that Would Impact Deferred Taxes	$ 1,000	$ 1,000	$ 1,000
Tax Cuts and Jobs Act of 2017 Incomplete Accounting Change in Tax Liability Provisional Income Tax Expense Benefit			73,000
Effective Income Tax Rate Reconciliation, GILTI	0.60%	0.30%
Current Federal Tax Expense (Benefit)	$ 101,839	$ 90,216	196,825
Current State and Local Tax Expense (Benefit)	24,925	25,851	27,149
Current Foreign Tax Expense (Benefit)	81,081	77,508	58,123
Current Income Tax Expense (Benefit)	207,845	193,575	282,097
Deferred Federal Income Tax Expense (Benefit)	22,173	14,977	(37,486)
Deferred State and Local Income Tax Expense (Benefit)	6,376	4,386	4,044
Deferred Foreign Income Tax Expense (Benefit)	(21,064)	(21,543)	(13,095)
Deferred income taxes	7,109	(2,180)	(46,537)
Provision for income taxes	215,330	191,395	235,560
Income (Loss) from Continuing Operations before Income Taxes, Domestic	616,842	562,758	575,148
Income (Loss) from Continuing Operations before Income Taxes, Foreign	174,180	180,673	191,479
Income from continuing operations before provision for income taxes	$ 791,022	$ 743,431	$ 766,627
U.S. federal statutory rate	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Effect of U.S. Federal Tax Reform - Federal Deferred Tax Rate Change	0.00%	0.00%	(9.50%)
Effective Income Tax Rate Reconciliation, Effect of U.S. Federal Tax Reform - Transition Tax on Foreign Earnings	0.10%	(1.30%)	6.60%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	3.20%	3.50%	2.80%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	1.40%	0.90%	(3.20%)
Effective Income Tax Rate Reconciliation, Excess Tax Benefit on Stock Based Payments, Percent	(0.30%)	(0.60%)	(1.00%)
Effective Income Tax Rate Reconciliation, Excess Tax Benefit on Stock Based Payments, Percent	0.90%	1.60%	1.10%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.90%	0.60%	(1.10%)
Effective Income Tax Rate Reconciliation, Percent	27.20%	25.70%	30.70%
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	$ 51,869	$ 60,337
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	31,053	20,525
Deferred Tax Assets, Inventory	12,679	15,474
Deferred Tax Assets Tax Deferred Accounts Receivable	14,025	16,208
Interest Expense Deduction Carry Forward	25,448	20,392
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	4,755	4,859
Deferred Tax Assets, Operating Lease Assets, net	303,705	0
Deferred Tax Assets, Operating Loss Carryforwards	16,287	13,222
Deferred Tax Assets, Other	11,777	12,370
Deferred Tax Assets, Gross	471,598	163,387
Deferred Tax Assets, Valuation Allowance	(41,815)	(34,779)
Deferred Tax Assets, Net of Valuation Allowance	429,783	128,608
Deferred Tax Liabilities Goodwill and Intangible Assets Excluding Trade Name Intangible	219,879	216,699
Deferred Tax Liabilities Goodwill and Intangible Assets Excluding Trade Name Intangible	100,461	87,839
Deferred Tax Liabilities Trade Name Intangible	108,039	116,615
Deferred Tax Liabilities, Operating Lease Liabilities	292,498	0
Deferred Tax Liabilities, Other	8,916	15,511
Deferred Tax Liabilities, Gross	729,793	436,664
Deferred Tax Liabilities, Net	(300,010)	(308,056)
Deferred Tax Assets, Net, Noncurrent	10,119	3,378
Deferred income taxes	310,129	311,434
Unrecognized Tax Benefits	2,317	1,237	$ 1,690		$ 2,146
Unrecognized Tax Benefits, Increase Resulting from Acquisition	1,376	0	73
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	50	5	5
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(297)	(458)	(534)
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	(49)	0	0
Deferred Tax Assets, Tax Credit Carryforwards	1,000	1,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	7,000
Valuation Allowance, due to interest expense deductions	5,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,000	1,000	1,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	1,000
Undistributed Earnings of Foreign Subsidiaries	743,000
Tax Cuts and Jobs Act of 2017 Transition Tax Adjustment for Accumulated Foreign Earnings Provisional Amount	1,000	10,000
Tax Cuts and Jobs Act of 2017 Transition Tax for Accumulated Foreign Earnings	42,000
Tax Cuts and Jobs Act of 2017, transition tax for accumulated foreign earnings, provisional amount			51,000
Tax Cuts and Jobs Acts of 2017 Transition Tax For Accumulated Foreign Earnings Provisional Amount Payment Period				8 years
Tax Cuts And Jobs Act Of 2017 Transition Tax For Accumulated Foreign Earnings Provisional Amount, Remaining	33,000
Stahlgruber [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		(78,130)
PGW
Deferred Tax Assets, Capital Loss Carryforwards	5,000	5,000
Continuing Operations [Member]
Deferred income taxes	$ 7,485	$ (2,180)	$ (46,537)

Segment and Geographic Inform_3

Segment and Geographic Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Segment Reporting Information
Revenue	$ 12,506,109	$ 11,876,674	$ 9,736,909
Segment EBITDA	1,328,361	1,251,399	1,116,590
Depreciation and amortization	$ 314,406	294,077	230,203
Number of operating segments	4
Number of reportable segments	3
Intersegment [Member]
Segment Reporting Information
Revenue	$ 0	0	0
Third Party [Member]
Segment Reporting Information
Revenue	12,506,109	11,876,674	9,736,909
North America [Member]
Segment Reporting Information
Revenue	5,209,294	5,182,609	4,799,651
Segment EBITDA	712,957	660,153	655,275
Depreciation and amortization	$ 93,747	87,348	86,303
Number of reportable segments	1
North America [Member] | Intersegment [Member]
Segment Reporting Information
Revenue	$ 705	645	750
North America [Member] | Third Party [Member]
Segment Reporting Information
Revenue	5,208,589	5,181,964	4,798,901
Europe [Member]
Segment Reporting Information
Revenue	5,838,124	5,221,754	3,636,811
Segment EBITDA	454,220	422,721	319,156
Depreciation and amortization	191,195	178,473	120,805
Europe [Member] | Intersegment [Member]
Segment Reporting Information
Revenue	0	0	0
Europe [Member] | Third Party [Member]
Segment Reporting Information
Revenue	5,838,124	5,221,754	3,636,811
Specialty
Segment Reporting Information
Revenue	1,464,042	1,477,680	1,305,516
Segment EBITDA	161,184	168,525	142,159
Depreciation and amortization	29,464	28,256	23,095
Specialty | Intersegment [Member]
Segment Reporting Information
Revenue	4,646	4,724	4,319
Specialty | Third Party [Member]
Segment Reporting Information
Revenue	1,459,396	1,472,956	1,301,197
Intersegment Eliminations [Member]
Segment Reporting Information
Revenue	(5,351)	(5,369)	(5,069)
Segment EBITDA	0	0	0
Depreciation and amortization	0	0	0
Intersegment Eliminations [Member] | Intersegment [Member]
Segment Reporting Information
Revenue	(5,351)	(5,369)	(5,069)
Intersegment Eliminations [Member] | Third Party [Member]
Segment Reporting Information
Revenue	$ 0	$ 0	$ 0

Schedule of Financial Performan

Schedule of Financial Performance by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information
Revenue	$ 12,506,109	$ 11,876,674	$ 9,736,909
Segment EBITDA	1,328,361	1,251,399	1,116,590
Depreciation and amortization	314,406	294,077	230,203
North America [Member]
Segment Reporting Information
Revenue	5,209,294	5,182,609	4,799,651
Segment EBITDA	712,957	660,153	655,275
Depreciation and amortization	93,747	87,348	86,303
Europe [Member]
Segment Reporting Information
Revenue	5,838,124	5,221,754	3,636,811
Segment EBITDA	454,220	422,721	319,156
Depreciation and amortization	191,195	178,473	120,805
Specialty
Segment Reporting Information
Revenue	1,464,042	1,477,680	1,305,516
Segment EBITDA	161,184	168,525	142,159
Depreciation and amortization	29,464	28,256	23,095
Intersegment Eliminations [Member]
Segment Reporting Information
Revenue	(5,351)	(5,369)	(5,069)
Segment EBITDA	0	0	0
Depreciation and amortization	0	0	0
Third Party [Member]
Segment Reporting Information
Revenue	12,506,109	11,876,674	9,736,909
Third Party [Member] | North America [Member]
Segment Reporting Information
Revenue	5,208,589	5,181,964	4,798,901
Third Party [Member] | Europe [Member]
Segment Reporting Information
Revenue	5,838,124	5,221,754	3,636,811
Third Party [Member] | Specialty
Segment Reporting Information
Revenue	1,459,396	1,472,956	1,301,197
Third Party [Member] | Intersegment Eliminations [Member]
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member]
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member] | North America [Member]
Segment Reporting Information
Revenue	705	645	750
Intersegment [Member] | Europe [Member]
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member] | Specialty
Segment Reporting Information
Revenue	4,646	4,724	4,319
Intersegment [Member] | Intersegment Eliminations [Member]
Segment Reporting Information
Revenue	$ (5,351)	$ (5,369)	$ (5,069)

Reconciliation Of Segment EBITD

Reconciliation Of Segment EBITDA To Net Income (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Segment Earnings Before Interest Taxes Depreciation And Amortization to Net Income Table [Line Items]
Interest expense						$ 138,504	$ 146,377	$ 101,640
Net income						545,034	483,168	530,228
Less: net income (loss) attributable to continuing noncontrolling interest						2,800	3,050	(3,516)
Less: net income attributable to discontinued noncontrolling interest						974	0	0
Net income attributable to LKQ stockholders						541,260	480,118	533,744
Net income (loss) from discontinued operations					$ 4,000	1,619	(4,397)	(6,746)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent						540,615	484,515	540,490
Depreciation and amortization						290,770	274,213	219,546
Cost, Depreciation and Amortization						21,007	19,864	10,657
Depreciation and Amortization - Restructuring Expense - Cost of Goods Sold						305	0	0
Depreciation and Amortization - Restructuring Expenses						2,324	0	0
Interest Income (Expense), Nonoperating, Net						136,274	144,536	100,620
(Gain) loss on debt extinguishment						(128)	1,350	456
Provision for income taxes						215,330	191,395	235,560
EBITDA						1,206,497	1,115,873	1,107,329
Equity in (losses) earnings of unconsolidated subsidiaries						32,277	64,471	(5,907)
Fair Value Measured On Recurring Basis Gains Losses Included In Earnings							5,000
Other Nonrecurring Gain						12,063	0	0
Bargain Purchase On Business Combination And Gain Loss On Previously Held Equity Interests And Investments						1,157	2,418	3,870
Gains on bargain purchases							2,418
Restructuring Charges And Business Combination Acquisition Related Costs net of Restructuring Depreciation						34,658	32,428	19,672
CostofGoodsSoldRestructuringCharges						20,654	0	0
Inventory step-up adjustment - acquisition related						0	403	3,584
Impairment of net assets held for sale and goodwill						47,102	33,244	0
Impairment of Long-Lived Assets to be Disposed of	$ 2,000	$ (4,000)	$ 33,000	$ 15,000		47,000	35,682
Change in fair value of contingent consideration liabilities						(393)	208	4,218
Segment EBITDA						1,328,361	1,251,399	1,116,590
Right to acquire equity method investment [Domain] | Mekonomen [Member]
Reconciliation of Segment Earnings Before Interest Taxes Depreciation And Amortization to Net Income Table [Line Items]
Fair Value Measured On Recurring Basis Gains Losses Included In Earnings						$ 0	$ (5,168)	$ 0

Schedule of Capital Expenditure

Schedule of Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information
Capital Expenditures	$ 265,730	$ 250,027	$ 179,090
North America [Member]
Segment Reporting Information
Capital Expenditures	131,643	129,391	95,823
Europe [Member]
Segment Reporting Information
Capital Expenditures	121,596	99,885	71,494
Specialty
Segment Reporting Information
Capital Expenditures	12,491	20,751	8,175
Discontinued Operations [Member]
Segment Reporting Information
Capital Expenditures	$ 0	$ 0	$ 3,598

Schedule of Assets by Reportabl

Schedule of Assets by Reportable Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information
Receivables, net	$ 1,131,132	$ 1,154,083	$ 1,027,106
Inventories	2,772,777	2,836,075	2,380,783
Property, plant and equipment, net	1,234,400	1,220,162	913,089
Operating lease assets, net	1,308,511	0	0
Equity method investments	139,243	179,169	208,404
Other unallocated assets	6,193,893	6,003,913	4,837,490
Total assets	12,779,956	11,393,402	9,366,872
North America [Member]
Segment Reporting Information
Receivables, net	419,452	411,818	379,666
Inventories	991,062	1,076,306	1,076,393
Property, plant and equipment, net	610,573	570,508	537,286
Operating lease assets, net	768,164	0	0
Equity method investments	17,624	16,404	336
Europe [Member]
Segment Reporting Information
Receivables, net	636,216	649,174	555,372
Inventories	1,401,801	1,410,264	964,068
Property, plant and equipment, net	538,951	562,600	293,539
Operating lease assets, net	457,035	0	0
Equity method investments	121,619	162,765	208,068
Specialty
Segment Reporting Information
Receivables, net	75,464	93,091	92,068
Inventories	379,914	349,505	340,322
Property, plant and equipment, net	84,876	87,054	82,264
Operating lease assets, net	$ 83,312	$ 0	$ 0

Segment and Geographic Inform_4

Segment and Geographic Information Schedule of Revenue by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets
Revenue	$ 12,506,109	$ 11,876,674	$ 9,736,909
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Revenue	6,220,267	6,192,636	5,662,016
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Revenue	1,599,074	1,665,317	1,548,212
GERMANY
Revenues from External Customers and Long-Lived Assets
Revenue	1,578,543	974,514	1,744
Other countries
Revenues from External Customers and Long-Lived Assets
Revenue	$ 3,108,225	$ 3,044,207	$ 2,524,937

Schedule of Tangible Long-Lived

Schedule of Tangible Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets
Long-Lived Assets	$ 2,542,911	$ 1,220,162	$ 913,089
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Long-Lived Assets	1,467,701	620,125	583,236
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Long-Lived Assets	330,113	165,145	178,021
Other countries
Revenues from External Customers and Long-Lived Assets
Long-Lived Assets	404,102	217,416	151,791
GERMANY
Revenues from External Customers and Long-Lived Assets
Long-Lived Assets	$ 340,995	$ 217,476	$ 41

Selected Quarterly Data (unau_3

Selected Quarterly Data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Line Items [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ (2,000)	$ 4,000	$ (33,000)	$ (15,000)					$ (47,000)	$ (35,682)
Revenue									12,506,109	11,876,674	$ 9,736,909
Gross margin									4,851,794	4,574,857	3,799,623
Operating income									896,643	882,241	844,998
Income from continuing operations									543,415	487,565	536,974
Net (loss) income from discontinued operations					$ (4,000)				(1,619)	4,397	6,746
Net income									545,034	483,168	530,228
Less: net income (loss) attributable to continuing noncontrolling interest									2,800	3,050	(3,516)
Less: net income attributable to discontinued noncontrolling interest									974	0	0
Net income attributable to LKQ stockholders									$ 541,260	$ 480,118	$ 533,744
Income from continuing operations									$ 1.75	$ 1.54	$ 1.73
Income from continuing operations									$ 1.75	$ 1.55	$ 1.74
Impairment of equity method investments									$ 41,057	$ 70,895	$ 0
Impairment of net assets held for sale and goodwill					33,000					(33,244)
Mekonomen [Member]
Quarterly Financial Information Line Items [Line Items]
Impairment of equity method investments				40,000	48,000	$ 23,000			$ 40,000	$ 71,000
Selected Quarterly Data [Member]
Quarterly Financial Information Line Items [Line Items]
Revenue	3,009,860	3,147,773	3,248,173	3,100,303	3,002,781	3,122,378	$ 3,030,751	$ 2,720,764
Gross margin	1,196,014	1,200,329	1,247,187	1,208,264	1,161,809	1,197,198	1,161,879	1,053,971
Operating income	206,768	231,364	236,111	222,400	164,146	234,733	256,794	226,568
Income from continuing operations	140,833	151,812	151,707	99,063	42,456	134,480	157,866	152,763
Net (loss) income from discontinued operations	(440)	(781)	(398)	0	4,397	0	0	0
Net income	141,273	152,593	152,105	99,063	38,059	134,480	157,866	152,763
Less: net income (loss) attributable to continuing noncontrolling interest	479	(46)	1,352	1,015	2,010	378	859	(197)
Less: net income attributable to discontinued noncontrolling interest	406	376	192	0
Net income attributable to LKQ stockholders	$ 140,388	$ 152,263	$ 150,561	$ 98,048	$ 36,049	$ 134,102	$ 157,007	$ 152,960
Income from continuing operations	$ 0.46	$ 0.49	$ 0.49	$ 0.31	$ 0.13	$ 0.42	$ 0.50	$ 0.49
Income from continuing operations	$ 0.46	$ 0.49	$ 0.49	$ 0.31	$ 0.13	$ 0.42	$ 0.51	$ 0.49

Condensed Consolidating Stateme

Condensed Consolidating Statements of Income (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Revenue		$ 12,506,109,000	$ 11,876,674,000	$ 9,736,909,000
Cost of goods sold		7,654,315,000	7,301,817,000	5,937,286,000
Gross margin		4,851,794,000	4,574,857,000	3,799,623,000
Selling, general and administrative expenses		3,580,300,000	3,352,731,000	2,715,407,000
Restructuring and acquisition related expenses		36,979,000	32,428,000	19,672,000
Impairment of net assets held for sale and goodwill		47,102,000	33,244,000	0
Depreciation and amortization		290,770,000	274,213,000	219,546,000
Operating income		896,643,000	882,241,000	844,998,000
Other expense (income):
Interest expense		138,504,000	146,377,000	101,640,000
Intercompany interest (income) expense, net		0	0	0
(Gain) loss on debt extinguishment		(128,000)	1,350,000	456,000
Gains on bargain purchases			(2,418,000)
Other Nonoperating Income (Expense)		(32,755,000)	(8,917,000)	(23,725,000)
Total other expense, net		105,621,000	138,810,000	78,371,000
Income from continuing operations before provision for income taxes		791,022,000	743,431,000	766,627,000
Provision for income taxes		215,330,000	191,395,000	235,560,000
Equity in (losses) earnings of unconsolidated subsidiaries		(32,277,000)	(64,471,000)	5,907,000
Equity in earnings of subsidiaries		0	0	0
Net income (loss) from discontinued operations	$ 4,000,000	1,619,000	(4,397,000)	(6,746,000)
Net income		545,034,000	483,168,000	530,228,000
Less: net income (loss) attributable to continuing noncontrolling interest		2,800,000	3,050,000	(3,516,000)
Income from continuing operations		543,415,000	487,565,000	536,974,000
Less: net income attributable to discontinued noncontrolling interest		974,000	0	0
Net Income (Loss) Attributable to Parent		541,260,000	480,118,000	533,744,000
Parent
Condensed Financial Statements, Captions [Line Items]
Revenue		0	0	0
Cost of goods sold		0	0	0
Gross margin		0	0	0
Selling, general and administrative expenses		45,914,000	27,394,000	29,884,000
Restructuring and acquisition related expenses		0	0	0
Impairment of net assets held for sale and goodwill		0	0
Depreciation and amortization		479,000	137,000	118,000
Operating income		(46,393,000)	(27,531,000)	(30,002,000)
Other expense (income):
Interest expense		52,376,000	66,794,000	66,030,000
Intercompany interest (income) expense, net		(58,762,000)	(65,072,000)	(17,873,000)
(Gain) loss on debt extinguishment		0	1,350,000	456,000
Other Nonoperating Income (Expense)		(13,269,000)	(1,082,000)	242,000
Total other expense, net		(19,655,000)	1,990,000	48,855,000
Income from continuing operations before provision for income taxes		(26,738,000)	(29,521,000)	(78,857,000)
Provision for income taxes		(7,062,000)	(18,600,000)	28,684,000
Equity in (losses) earnings of unconsolidated subsidiaries		0	0	0
Equity in earnings of subsidiaries		559,317,000	495,436,000	648,031,000
Net income (loss) from discontinued operations		1,619,000	(4,397,000)	(6,746,000)
Net income		541,260,000	480,118,000	533,744,000
Less: net income (loss) attributable to continuing noncontrolling interest		0	0	0
Income from continuing operations		539,641,000	484,515,000	540,490,000
Less: net income attributable to discontinued noncontrolling interest		0
Net Income (Loss) Attributable to Parent		541,260,000	480,118,000	533,744,000
Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue		6,269,185,000	6,276,951,000	5,780,904,000
Cost of goods sold		3,711,074,000	3,783,376,000	3,458,304,000
Gross margin		2,558,111,000	2,493,575,000	2,322,600,000
Selling, general and administrative expenses		1,732,282,000	1,713,118,000	1,557,883,000
Restructuring and acquisition related expenses		8,644,000	3,140,000	7,352,000
Impairment of net assets held for sale and goodwill		39,355,000	33,244,000
Depreciation and amortization		105,288,000	99,665,000	96,717,000
Operating income		672,542,000	644,408,000	660,648,000
Other expense (income):
Interest expense		299,000	640,000	546,000
Intercompany interest (income) expense, net		32,899,000	40,756,000	(2,383,000)
(Gain) loss on debt extinguishment		(128,000)	0	0
Other Nonoperating Income (Expense)		(20,376,000)	(15,586,000)	(14,323,000)
Total other expense, net		12,694,000	25,810,000	(16,160,000)
Income from continuing operations before provision for income taxes		659,848,000	618,598,000	676,808,000
Provision for income taxes		169,173,000	163,937,000	168,288,000
Equity in (losses) earnings of unconsolidated subsidiaries		1,220,000	173,000	0
Equity in earnings of subsidiaries		10,824,000	16,598,000	21,836,000
Net income (loss) from discontinued operations		(1,253,000)	(4,397,000)	(6,746,000)
Net income		501,466,000	467,035,000	523,610,000
Less: net income (loss) attributable to continuing noncontrolling interest		0	0	0
Income from continuing operations		502,719,000	471,432,000	530,356,000
Less: net income attributable to discontinued noncontrolling interest		0
Net Income (Loss) Attributable to Parent		501,466,000	467,035,000	523,610,000
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue		6,384,822,000	5,766,958,000	4,116,161,000
Cost of goods sold		4,091,139,000	3,685,676,000	2,639,138,000
Gross margin		2,293,683,000	2,081,282,000	1,477,023,000
Selling, general and administrative expenses		1,802,104,000	1,612,219,000	1,127,640,000
Restructuring and acquisition related expenses		28,335,000	29,288,000	12,320,000
Impairment of net assets held for sale and goodwill		7,747,000	0
Depreciation and amortization		185,003,000	174,411,000	122,711,000
Operating income		270,494,000	265,364,000	214,352,000
Other expense (income):
Interest expense		85,829,000	78,943,000	35,064,000
Intercompany interest (income) expense, net		25,863,000	24,316,000	20,256,000
(Gain) loss on debt extinguishment		0	0	0
Other Nonoperating Income (Expense)		890,000	7,751,000	(9,644,000)
Total other expense, net		112,582,000	111,010,000	45,676,000
Income from continuing operations before provision for income taxes		157,912,000	154,354,000	168,676,000
Provision for income taxes		53,219,000	46,058,000	38,588,000
Equity in (losses) earnings of unconsolidated subsidiaries		(33,497,000)	(64,644,000)	5,907,000
Equity in earnings of subsidiaries		0	0	0
Net income (loss) from discontinued operations		1,673,000	0	2,050,000
Net income		72,869,000	43,652,000	138,045,000
Less: net income (loss) attributable to continuing noncontrolling interest		2,800,000	3,050,000	(3,516,000)
Income from continuing operations		71,196,000	43,652,000	135,995,000
Less: net income attributable to discontinued noncontrolling interest		974,000
Net Income (Loss) Attributable to Parent		69,095,000	40,602,000	141,561,000
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenue		(147,898,000)	(167,235,000)	(160,156,000)
Cost of goods sold		(147,898,000)	(167,235,000)	(160,156,000)
Gross margin		0	0	0
Selling, general and administrative expenses		0	0	0
Restructuring and acquisition related expenses		0	0	0
Impairment of net assets held for sale and goodwill		0	0
Depreciation and amortization		0	0	0
Operating income		0	0	0
Other expense (income):
Interest expense		0	0	0
Intercompany interest (income) expense, net		0	0	0
(Gain) loss on debt extinguishment		0	0	0
Other Nonoperating Income (Expense)		0	0	0
Total other expense, net		0	0	0
Income from continuing operations before provision for income taxes		0	0	0
Provision for income taxes		0	0	0
Equity in (losses) earnings of unconsolidated subsidiaries		0	0	0
Equity in earnings of subsidiaries		(570,141,000)	(512,034,000)	(669,867,000)
Net income (loss) from discontinued operations		(420,000)	4,397,000	4,696,000
Net income		(570,561,000)	(507,637,000)	(665,171,000)
Less: net income (loss) attributable to continuing noncontrolling interest		0	0	0
Income from continuing operations		(570,141,000)	(512,034,000)	(669,867,000)
Less: net income attributable to discontinued noncontrolling interest		0
Net Income (Loss) Attributable to Parent		$ (570,561,000)	$ (507,637,000)	$ (665,171,000)

Condensed Consolidating State_2

Condensed Consolidating Statements of Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Net income	$ 545,034,000	$ 483,168,000	$ 530,228,000
Less: net income (loss) attributable to continuing noncontrolling interest	2,800,000	3,050,000	(3,516,000)
Less: net income attributable to discontinued noncontrolling interest	974,000	0	0
Net income attributable to LKQ stockholders	541,260,000	480,118,000	533,744,000
Other comprehensive income (loss):
Foreign currency translation, net of tax	6,704,000	(108,523,000)	200,596,000
Net change in unrealized gains/losses on cash flow hedges, net of tax	(9,016,000)	350,000	3,447,000
Net change in unrealized gains/losses on pension plans, net of tax	(23,859,000)	697,000	(6,035,000)
Net change in other comprehensive loss from unconsolidated subsidiaries	(236,000)	2,343,000	1,309,000
Other comprehensive (loss) income	(25,935,000)	(109,819,000)	196,699,000
Comprehensive income	519,099,000	373,349,000	726,927,000
Comprehensive income attributable to LKQ stockholders	515,325,000	370,299,000	730,443,000
Less: comprehensive income (loss) attributable to continuing noncontrolling interest	2,800,000	3,050,000	(3,516,000)
Less: comprehensive income attributable to discontinued noncontrolling interest	974,000	0	0
Parent
Condensed Financial Statements, Captions [Line Items]
Net income	541,260,000	480,118,000	533,744,000
Less: net income (loss) attributable to continuing noncontrolling interest	0	0	0
Less: net income attributable to discontinued noncontrolling interest	0
Net income attributable to LKQ stockholders	541,260,000	480,118,000	533,744,000
Other comprehensive income (loss):
Foreign currency translation, net of tax	6,704,000	(108,523,000)	200,596,000
Net change in unrealized gains/losses on cash flow hedges, net of tax	(9,016,000)	350,000	3,447,000
Net change in unrealized gains/losses on pension plans, net of tax	(23,859,000)	697,000	(6,035,000)
Net change in other comprehensive loss from unconsolidated subsidiaries	(236,000)	2,343,000	1,309,000
Other comprehensive (loss) income	(25,935,000)	(109,819,000)	196,699,000
Comprehensive income	515,325,000	370,299,000	730,443,000
Comprehensive income attributable to LKQ stockholders	515,325,000	370,299,000	730,443,000
Less: comprehensive income (loss) attributable to continuing noncontrolling interest		0
Less: comprehensive income attributable to discontinued noncontrolling interest	0
Guarantors
Condensed Financial Statements, Captions [Line Items]
Net income	501,466,000	467,035,000	523,610,000
Less: net income (loss) attributable to continuing noncontrolling interest	0	0	0
Less: net income attributable to discontinued noncontrolling interest	0
Net income attributable to LKQ stockholders	501,466,000	467,035,000	523,610,000
Other comprehensive income (loss):
Foreign currency translation, net of tax	5,477,000	(8,628,000)	16,743,000
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	0	(133,000)
Net change in unrealized gains/losses on pension plans, net of tax	(6,088,000)	1,266,000	(3,254,000)
Net change in other comprehensive loss from unconsolidated subsidiaries	0	0	0
Other comprehensive (loss) income	(611,000)	(7,362,000)	13,356,000
Comprehensive income	500,855,000	459,673,000	536,966,000
Comprehensive income attributable to LKQ stockholders	500,855,000	459,673,000	536,966,000
Less: comprehensive income (loss) attributable to continuing noncontrolling interest		0
Less: comprehensive income attributable to discontinued noncontrolling interest	0
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Net income	72,869,000	43,652,000	138,045,000
Less: net income (loss) attributable to continuing noncontrolling interest	2,800,000	3,050,000	(3,516,000)
Less: net income attributable to discontinued noncontrolling interest	974,000
Net income attributable to LKQ stockholders	69,095,000	40,602,000	141,561,000
Other comprehensive income (loss):
Foreign currency translation, net of tax	5,360,000	(75,462,000)	206,049,000
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	0	0
Net change in unrealized gains/losses on pension plans, net of tax	(17,771,000)	(569,000)	(2,781,000)
Net change in other comprehensive loss from unconsolidated subsidiaries	(236,000)	2,343,000	1,309,000
Other comprehensive (loss) income	(12,175,000)	(78,374,000)	201,959,000
Comprehensive income	60,694,000	(34,722,000)	340,004,000
Comprehensive income attributable to LKQ stockholders	56,920,000	(37,772,000)	343,520,000
Less: comprehensive income (loss) attributable to continuing noncontrolling interest	2,800,000	3,050,000	(3,516,000)
Less: comprehensive income attributable to discontinued noncontrolling interest	974,000
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net income	(570,561,000)	(507,637,000)	(665,171,000)
Less: net income (loss) attributable to continuing noncontrolling interest	0	0	0
Less: net income attributable to discontinued noncontrolling interest	0
Net income attributable to LKQ stockholders	(570,561,000)	(507,637,000)	(665,171,000)
Other comprehensive income (loss):
Foreign currency translation, net of tax	(10,837,000)	84,090,000	(222,792,000)
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	0	133,000
Net change in unrealized gains/losses on pension plans, net of tax	23,859,000	(697,000)	6,035,000
Net change in other comprehensive loss from unconsolidated subsidiaries	236,000	(2,343,000)	(1,309,000)
Other comprehensive (loss) income	12,786,000	85,736,000	(215,315,000)
Comprehensive income	(557,775,000)	(421,901,000)	(880,486,000)
Comprehensive income attributable to LKQ stockholders	(557,775,000)	(421,901,000)	$ (880,486,000)
Less: comprehensive income (loss) attributable to continuing noncontrolling interest		$ 0
Less: comprehensive income attributable to discontinued noncontrolling interest	$ 0

Condensed Consolidating Balance

Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents, at carrying value, excluding restricted cash	$ 523,020	$ 331,761	$ 279,766
Receivables, net	1,131,132	1,154,083	1,027,106
Intercompany receivables, net	0	0
Inventories	2,772,777	2,836,075	2,380,783
Prepaid expenses and other current assets	260,890	199,030
Total current assets	4,687,819	4,520,949
Property, plant and equipment, net	1,234,400	1,220,162	913,089
Operating lease assets, net	1,308,511	0	0
Intangible assets:
Goodwill	4,406,535	4,381,458	3,536,511
Other intangibles, net	850,338	928,752
Investment in subsidiaries	0	0
Intercompany notes receivable	0	0
Equity method investments	139,243	179,169	208,404
Other noncurrent assets	153,110	162,912
Total assets	12,779,956	11,393,402	9,366,872
Current liabilities:
Accounts payable	942,795	942,398
Intercompany payables, net	0	0
Accrued expenses:
Accrued payroll-related liabilities	179,203	172,005
Refund liability	289,683	288,425
Other accrued expenses	97,314	104,585
Other current liabilities	121,623	61,109
Current portion of operating lease liabilities	221,527	0
Current portion of long-term obligations	326,367	121,826
Total current liabilities	2,178,512	1,690,348
Long-term operating lease liabilities, excluding current portion	1,137,597	0
Long-term obligations, excluding current portion	3,715,389	4,188,674
Intercompany notes payable	0	0
Deferred income taxes	310,129	311,434
Other noncurrent liabilities	365,672	364,194
Redeemable noncontrolling interest	24,077	0
Total Company stockholders' equity	5,008,876	4,782,298
Noncontrolling interest	39,704	56,454
Total stockholders' equity	5,048,580	4,838,752	$ 4,206,653	$ 3,442,949
Total liabilities and stockholders' equity	12,779,956	11,393,402
Parent
Current assets:
Cash and cash equivalents, at carrying value, excluding restricted cash	240,476	25,633
Receivables, net	0	310
Intercompany receivables, net	9,822	6,978
Inventories	0	0
Prepaid expenses and other current assets	11,606	18,611
Total current assets	261,904	51,532
Property, plant and equipment, net	423	1,547
Operating lease assets, net	3,701
Intangible assets:
Goodwill	0	0
Other intangibles, net	564	260
Investment in subsidiaries	5,345,724	5,224,006
Intercompany notes receivable	1,021,380	1,220,582
Equity method investments	0	0
Other noncurrent assets	64,080	70,283
Total assets	6,697,776	6,568,210
Current liabilities:
Accounts payable	2,883	2,454
Intercompany payables, net	0	0
Accrued expenses:
Accrued payroll-related liabilities	8,837	6,652
Refund liability	8,895	5,454
Other accrued expenses	0	0
Other current liabilities	282	283
Current portion of operating lease liabilities	224
Current portion of long-term obligations	202,220	8,459
Total current liabilities	223,341	23,302
Long-term operating lease liabilities, excluding current portion	3,883
Long-term obligations, excluding current portion	1,331,015	1,628,677
Intercompany notes payable	0	0
Deferred income taxes	5,229	8,045
Other noncurrent liabilities	125,432	125,888
Redeemable noncontrolling interest	0
Total Company stockholders' equity	5,008,876	4,782,298
Noncontrolling interest	0	0
Total stockholders' equity	5,008,876	4,782,298
Total liabilities and stockholders' equity	6,697,776	6,568,210
Guarantors
Current assets:
Cash and cash equivalents, at carrying value, excluding restricted cash	44,326	29,285
Receivables, net	304,416	316,726
Intercompany receivables, net	0	0
Inventories	1,289,389	1,343,612
Prepaid expenses and other current assets	94,146	99,356
Total current assets	1,732,277	1,788,979
Property, plant and equipment, net	640,648	600,054
Operating lease assets, net	808,726
Intangible assets:
Goodwill	2,012,282	1,973,364
Other intangibles, net	249,497	272,451
Investment in subsidiaries	127,551	111,826
Intercompany notes receivable	120,099	10,515
Equity method investments	17,624	16,404
Other noncurrent assets	39,204	40,548
Total assets	5,747,908	4,814,141
Current liabilities:
Accounts payable	397,647	343,116
Intercompany payables, net	18,261	12,880
Accrued expenses:
Accrued payroll-related liabilities	66,877	70,267
Refund liability	119,352	105,672
Other accrued expenses	46,789	50,899
Other current liabilities	23,641	17,860
Current portion of operating lease liabilities	119,538
Current portion of long-term obligations	3,124	2,932
Total current liabilities	795,229	603,626
Long-term operating lease liabilities, excluding current portion	721,584
Long-term obligations, excluding current portion	14,268	13,532
Intercompany notes payable	517,361	597,283
Deferred income taxes	161,574	135,355
Other noncurrent liabilities	80,611	99,147
Redeemable noncontrolling interest	0
Total Company stockholders' equity	3,457,281	3,365,198
Noncontrolling interest	0	0
Total stockholders' equity	3,457,281	3,365,198
Total liabilities and stockholders' equity	5,747,908	4,814,141
Non-Guarantors
Current assets:
Cash and cash equivalents, at carrying value, excluding restricted cash	238,218	276,843
Receivables, net	826,716	837,047
Intercompany receivables, net	18,261	12,880
Inventories	1,483,388	1,492,463
Prepaid expenses and other current assets	155,138	81,063
Total current assets	2,721,721	2,700,296
Property, plant and equipment, net	593,329	618,561
Operating lease assets, net	496,084
Intangible assets:
Goodwill	2,394,253	2,408,094
Other intangibles, net	600,277	656,041
Investment in subsidiaries	0	0
Intercompany notes receivable	0	0
Equity method investments	121,619	162,765
Other noncurrent assets	49,826	52,081
Total assets	6,977,109	6,597,838
Current liabilities:
Accounts payable	542,265	596,828
Intercompany payables, net	9,822	6,978
Accrued expenses:
Accrued payroll-related liabilities	103,489	95,086
Refund liability	161,436	177,299
Other accrued expenses	50,525	53,686
Other current liabilities	97,700	42,966
Current portion of operating lease liabilities	101,765
Current portion of long-term obligations	121,023	110,435
Total current liabilities	1,188,025	1,083,278
Long-term operating lease liabilities, excluding current portion	412,130
Long-term obligations, excluding current portion	2,370,106	2,546,465
Intercompany notes payable	624,118	633,814
Deferred income taxes	143,326	168,034
Other noncurrent liabilities	159,629	139,159
Redeemable noncontrolling interest	24,077
Total Company stockholders' equity	2,015,994	1,970,634
Noncontrolling interest	39,704	56,454
Total stockholders' equity	2,055,698	2,027,088
Total liabilities and stockholders' equity	6,977,109	6,597,838
Eliminations
Current assets:
Cash and cash equivalents, at carrying value, excluding restricted cash	0	0
Receivables, net	0	0
Intercompany receivables, net	(28,083)	(19,858)
Inventories	0	0
Prepaid expenses and other current assets	0	0
Total current assets	(28,083)	(19,858)
Property, plant and equipment, net	0	0
Operating lease assets, net	0
Intangible assets:
Goodwill	0	0
Other intangibles, net	0	0
Investment in subsidiaries	(5,473,275)	(5,335,832)
Intercompany notes receivable	(1,141,479)	(1,231,097)
Equity method investments	0	0
Other noncurrent assets	0	0
Total assets	(6,642,837)	(6,586,787)
Current liabilities:
Accounts payable	0	0
Intercompany payables, net	(28,083)	(19,858)
Accrued expenses:
Accrued payroll-related liabilities	0	0
Refund liability	0	0
Other accrued expenses	0	0
Other current liabilities		0
Current portion of operating lease liabilities	0
Current portion of long-term obligations	0	0
Total current liabilities	(28,083)	(19,858)
Long-term operating lease liabilities, excluding current portion	0
Long-term obligations, excluding current portion	0	0
Intercompany notes payable	(1,141,479)	(1,231,097)
Deferred income taxes	0	0
Other noncurrent liabilities	0	0
Redeemable noncontrolling interest	0
Total Company stockholders' equity	(5,473,275)	(5,335,832)
Noncontrolling interest	0	0
Total stockholders' equity	(5,473,275)	(5,335,832)
Total liabilities and stockholders' equity	$ (6,642,837)	$ (6,586,787)

Condensed Consolidating State_3

Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	$ 1,064,033	$ 710,739	$ 518,900
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(265,730)	(250,027)	(179,090)
Proceeds from Disposal of Property, Plant, and Equipment	16,045	27,659	8,707
Investment and intercompany note activity with subsidiaries	0	0	0
Proceeds from investment in subsidiary, distribution, return of capital		0
Acquisitions, net of cash and restricted cash acquired	(27,296)	(1,214,995)	(513,088)
Payments to Acquire Equity Method Investments	(7,594)	(60,300)	(7,664)
Receipts of deferred purchase price on receivables under factoring arrangements	0	36,991	0
Other investing activities, net	1,253	1,733	5,243
Net cash used in investing activities	(264,853)	(1,458,939)	(384,595)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs	0	(21,128)	(4,267)
Proceeds from issuance of Euro Notes (2026/28)	0	1,232,100	0
Payments for Repurchase of Common Stock	(291,813)	(60,000)	0
Borrowings under revolving credit facilities	605,708	1,667,325	839,171
Repayments under revolving credit facilities	(734,471)	(1,528,970)	(946,477)
Repayments under term loans	(8,750)	(354,800)	(27,884)
Borrowings under receivables securitization facility	36,600	10,120	11,245
(Repayments) borrowings of other debt, net			19,706
Other financing activities, net	(8,298)	5,086	7,184
Investment and intercompany note activity with parent	0	0	0
Dividends	0	0	0
Net cash (used in) provided by financing activities	(600,669)	882,995	(112,567)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(904)	(77,311)	23,512
Net increase in cash, cash equivalents and restricted cash	197,607	57,484	45,250
Cash And Cash Equivalents, Continuing Operations		337,250	279,766	$ 227,400
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	534,857	337,250	279,766	234,516
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period	0	0	(7,116)
Repayments under receivables securitization facility	(146,600)	(120)	(11,245)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	528,387	337,250	279,766
Proceeds from disposal of businesses	18,469	0	301,297
Payment of notes issued and assumed debt from acquisitions	(19,123)	(54,888)	0
(Repayments) borrowings of other debt, net	(33,922)	(11,730)	19,706
Less: Cash and cash equivalents of discontinued operations, end of period	6,470	0	0
Parent
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	500,658	481,138	243,011
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(564)	(848)	(648)
Proceeds from Disposal of Property, Plant, and Equipment	0	0	0
Investment and intercompany note activity with subsidiaries	130,600	(97,261)	57,735
Proceeds from investment in subsidiary, distribution, return of capital		143,524
Acquisitions, net of cash and restricted cash acquired	0	0	0
Payments to Acquire Equity Method Investments	0	0	0
Receipts of deferred purchase price on receivables under factoring arrangements	0	0	0
Other investing activities, net	967	887	0
Net cash used in investing activities	131,003	46,302	57,087
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs		(5,434)	(4,267)
Proceeds from issuance of Euro Notes (2026/28)		0
Payments for Repurchase of Common Stock	(291,813)	(60,000)
Borrowings under revolving credit facilities	218,000	765,632	558,000
Repayments under revolving credit facilities	(316,692)	(884,863)	(824,862)
Repayments under term loans	(8,750)	(354,800)	(27,884)
Borrowings under receivables securitization facility	0	0	0
(Repayments) borrowings of other debt, net			(1,700)
Other financing activities, net	2,309	3,683	1,945
Investment and intercompany note activity with parent	0	0	0
Dividends	0	0	0
Net cash (used in) provided by financing activities	(416,818)	(536,167)	(298,768)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0	0
Net increase in cash, cash equivalents and restricted cash	214,843	(8,727)	1,330
Cash And Cash Equivalents, Continuing Operations				33,030
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	240,476	25,633	34,360	33,030
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period			0
Repayments under receivables securitization facility	0	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	240,476	25,633	34,360
Proceeds from disposal of businesses	0		0
Payment of notes issued and assumed debt from acquisitions	(19,123)	0
(Repayments) borrowings of other debt, net	(749)	(385)
Less: Cash and cash equivalents of discontinued operations, end of period	0
Guarantors
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	275,443	277,595	186,459
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(134,992)	(136,033)	(87,102)
Proceeds from Disposal of Property, Plant, and Equipment	6,821	22,393	6,490
Investment and intercompany note activity with subsidiaries	0	0	0
Proceeds from investment in subsidiary, distribution, return of capital		0
Acquisitions, net of cash and restricted cash acquired	(23,643)	(8,217)	(335,582)
Payments to Acquire Equity Method Investments	(3,250)	(12,216)	(2,750)
Receipts of deferred purchase price on receivables under factoring arrangements	358,995	317,091	294,925
Other investing activities, net	286	180	0
Net cash used in investing activities	223,899	183,198	181,721
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs		0	0
Proceeds from issuance of Euro Notes (2026/28)		0
Payments for Repurchase of Common Stock	0	0
Borrowings under revolving credit facilities	0	0	0
Repayments under revolving credit facilities	0	0	0
Repayments under term loans	0	0	0
Borrowings under receivables securitization facility	0	0	0
(Repayments) borrowings of other debt, net			(1,318)
Other financing activities, net	0	0	(1,336)
Investment and intercompany note activity with parent	(34,026)	(68,435)	(65,498)
Dividends	(449,163)	(392,883)	(301,112)
Net cash (used in) provided by financing activities	(485,374)	(464,954)	(369,264)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,073	(1,685)	706
Net increase in cash, cash equivalents and restricted cash	15,041	(5,846)	(378)
Cash And Cash Equivalents, Continuing Operations				35,360
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	44,326	29,285	35,131	35,509
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period			(149)
Repayments under receivables securitization facility	0	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	44,326	29,285	35,131
Proceeds from disposal of businesses	19,682		305,740
Payment of notes issued and assumed debt from acquisitions	0	0
(Repayments) borrowings of other debt, net	(2,185)	(3,636)
Less: Cash and cash equivalents of discontinued operations, end of period	0
Non-Guarantors
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	378,100	111,213	95,617
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(130,174)	(113,146)	(91,340)
Proceeds from Disposal of Property, Plant, and Equipment	9,224	5,266	2,217
Investment and intercompany note activity with subsidiaries	0	0	0
Proceeds from investment in subsidiary, distribution, return of capital		0
Acquisitions, net of cash and restricted cash acquired	(3,653)	(1,206,778)	(177,506)
Payments to Acquire Equity Method Investments	(4,344)	(48,084)	(4,914)
Receipts of deferred purchase price on receivables under factoring arrangements	0	36,991	0
Other investing activities, net	0	666	5,243
Net cash used in investing activities	(130,160)	(1,325,085)	(270,743)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs		(15,694)	0
Proceeds from issuance of Euro Notes (2026/28)		1,232,100
Payments for Repurchase of Common Stock	0	0
Borrowings under revolving credit facilities	387,708	901,693	281,171
Repayments under revolving credit facilities	(417,779)	(644,107)	(121,615)
Repayments under term loans	0	0	0
Borrowings under receivables securitization facility	36,600	10,120	11,245
(Repayments) borrowings of other debt, net			22,724
Other financing activities, net	(10,607)	1,403	6,575
Investment and intercompany note activity with parent	(96,574)	165,696	7,763
Dividends	0	(226,939)	0
Net cash (used in) provided by financing activities	(278,240)	1,361,555	196,618
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,977)	(75,626)	22,806
Net increase in cash, cash equivalents and restricted cash	(32,277)	72,057	44,298
Cash And Cash Equivalents, Continuing Operations				159,010
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	250,055	282,332	210,275	165,977
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period			(6,967)
Repayments under receivables securitization facility	(146,600)	(120)	(11,245)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	243,585	282,332	210,275
Proceeds from disposal of businesses	(1,213)		(4,443)
Payment of notes issued and assumed debt from acquisitions	0	(54,888)
(Repayments) borrowings of other debt, net	(30,988)	(7,709)
Less: Cash and cash equivalents of discontinued operations, end of period	6,470
Eliminations
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	(90,168)	(159,207)	(6,187)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0	0
Proceeds from Disposal of Property, Plant, and Equipment	0	0	0
Investment and intercompany note activity with subsidiaries	(130,600)	97,261	(57,735)
Proceeds from investment in subsidiary, distribution, return of capital		(143,524)
Acquisitions, net of cash and restricted cash acquired	0	0	0
Payments to Acquire Equity Method Investments	0	0	0
Receipts of deferred purchase price on receivables under factoring arrangements	(358,995)	(317,091)	(294,925)
Other investing activities, net	0	0	0
Net cash used in investing activities	(489,595)	(363,354)	(352,660)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt issuance costs		0	0
Proceeds from issuance of Euro Notes (2026/28)		0
Payments for Repurchase of Common Stock	0	0
Borrowings under revolving credit facilities	0	0	0
Repayments under revolving credit facilities	0	0	0
Repayments under term loans	0	0	0
Borrowings under receivables securitization facility	0	0	0
(Repayments) borrowings of other debt, net			0
Other financing activities, net	0	0	0
Investment and intercompany note activity with parent	130,600	(97,261)	57,735
Dividends	449,163	619,822	301,112
Net cash (used in) provided by financing activities	579,763	522,561	358,847
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0	0
Net increase in cash, cash equivalents and restricted cash	0	0	0
Cash And Cash Equivalents, Continuing Operations				0
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	0	0	0	$ 0
Add: Cash, cash equivalents and restricted cash of discontinued operations, beginning of period			0
Repayments under receivables securitization facility	0	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	0	0	0
Proceeds from disposal of businesses	0		$ 0
Payment of notes issued and assumed debt from acquisitions	0	0
(Repayments) borrowings of other debt, net	0	$ 0
Less: Cash and cash equivalents of discontinued operations, end of period	$ 0

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	$ 52,685	$ 57,207	$ 57,609	$ 45,608
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	12,088	13,970	15,387
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	(18,308)	(15,945)	(13,012)
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	$ 1,698	$ 1,573	9,626
Allowance For Estimated Returns, Discounts, And Allowances [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount			42,325	$ 38,345
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense			1,885,517
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction			(1,884,250)
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired			$ 2,713