LKQ (LKQ) 10-Q 7 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 27, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	LKQ
Entity Registrant Name	LKQ CORP
Entity Central Index Key	1,065,696
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		309,710,577

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue	$ 2,720,764	$ 2,342,843
Cost of goods sold	1,666,793	1,412,750
Gross margin	1,053,971	930,093
Selling, general and administrative expenses (1)	766,891	642,817
Restructuring and acquisition related expenses	4,054	2,928
Depreciation and amortization	56,458	48,656
Operating income	226,568	235,692
Other expense (income):
Interest expense, net	28,515	23,988
Other income, net	(2,882)	(1,046)
Total other expense, net	25,633	22,942
Income from continuing operations before provision for income taxes	200,935	212,750
Provision for income taxes	49,584	72,155
Equity in earnings of unconsolidated subsidiaries	1,412	214
Income from continuing operations	152,763	140,809
Net loss from discontinued operations	0	(4,531)
Net income	152,763	136,278
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	$ 152,960	$ 136,278
Basic earnings per share: (2)
Income from continuing operations	$ 0.49	$ 0.46
Net loss from discontinued operations		(0.01)
Net income	0.49	0.44
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	0.49	0.44
Diluted earnings per share: (1)
Income from continuing operations	0.49	0.45
Net loss from discontinued operations		(0.01)
Net income	0.49	0.44
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	$ 0.49	$ 0.44

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 152,763	$ 136,278
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	152,960	136,278
Other comprehensive income (loss):
Foreign currency translation, net of tax	48,485	21,579
Net change in unrealized gains/losses on cash flow hedges, net of tax	3,254	3,163
Net change in unrealized gains/losses on pension plans, net of tax	(621)	(3,041)
Net change in other comprehensive loss from unconsolidated subsidiaries	(605)	(162)
Other comprehensive income	50,513	21,539
Comprehensive income	203,276	157,817
Less: comprehensive loss attributable to noncontrolling interest	(197)
Comprehensive income attributable to LKQ stockholders	$ 203,473	$ 157,817

Unaudited Condensed Consolidat4

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 245,679	$ 279,766
Receivables, net	1,211,788	1,027,106
Inventories	2,401,309	2,380,783
Prepaid expenses and other current assets	180,367	134,479
Total current assets	4,039,143	3,822,134
Property, plant and equipment, net	929,756	913,089
Intangible assets:
Goodwill	3,572,198	3,536,511
Other intangibles, net	740,804	743,769
Equity method investments	208,210	208,404
Other assets	146,067	142,965
Total assets	9,636,178	9,366,872
Current liabilities:
Accounts payable	812,661	788,613
Accrued expenses:
Accrued payroll-related liabilities	112,140	143,424
Other accrued expenses	267,364	218,600
Refund liability	99,179	0
Other current liabilities	41,167	45,727
Current portion of long-term obligations	142,277	126,360
Total current liabilities	1,474,788	1,322,724
Long-term obligations, excluding current portion	3,170,788	3,277,620
Deferred income taxes	242,226	252,359
Other noncurrent liabilities	329,395	307,516
Commitments and Contingencies
Stockholders’ equity:
Common stock, $0.01 par value, 1,000,000,000 shares authorized, 309,630,976 and 309,126,386 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	3,096	3,091
Additional paid-in capital	1,146,391	1,141,451
Retained earnings	3,271,718	3,124,103
Accumulated other comprehensive loss	(14,618)	(70,476)
Total Company stockholders' equity	4,406,587	4,198,169
Noncontrolling interest	12,394	8,484
Total stockholders' equity	4,418,981	4,206,653
Total liabilities and stockholders’ equity	$ 9,636,178	$ 9,366,872

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
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	309,630,976	309,126,386
Common stock, shares outstanding	309,630,976	309,126,386

Unaudited Condensed Consolidat6

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 152,763	$ 136,278
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	61,066	50,604
Stock-based compensation expense	5,982	7,285
Loss on sale of business		8,580
Other	(3,134)	1,343
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:
Receivables, net	(130,520)	(108,893)
Inventories	5,016	(745)
Prepaid income taxes/income taxes payable	37,362	61,064
Accounts payable	23,924	24,449
Other operating assets and liabilities	(7,296)	(7,672)
Net cash provided by operating activities	145,163	172,293
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(62,189)	(44,398)
Acquisitions, net of cash acquired	(2,966)	(77,056)
Proceeds from disposals of business/investment		301,297
Other investing activities, net	534	1,314
Net cash (used in) provided by investing activities	(64,621)	181,157
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	2,255	2,464
Taxes paid related to net share settlements of stock-based compensation awards	(3,292)	(3,644)
Debt issuance costs	(724)
Borrowings under revolving credit facilities	201,669	45,239
Repayments under revolving credit facilities	(321,525)	(389,313)
Repayments under term loans	(4,405)	(9,295)
Repayments under receivables securitization facility		(150)
Borrowings of Other Long-term Debt	4,409	23,313
Other financing activities, net	4,107	5,000
Net cash used in financing activities	(117,506)	(326,386)
Effect of exchange rate changes on cash and cash equivalents	2,877	3,034
Net (decrease) increase in cash and cash equivalents	(34,087)	30,098
Cash and cash equivalents of continuing operations, beginning of period	279,766	227,400
Add: Cash and cash equivalents of discontinued operations, beginning of period	0	7,116
Cash and cash equivalents of continuing and discontinued operations, beginning of period	279,766	227,400
Cash and cash equivalents, end of period	245,679	264,614
Supplemental disclosure of cash paid for:
Income taxes, net of refunds	15,464	13,746
Interest	13,975	10,965
Supplemental disclosure of noncash investing and financing activities:
Noncash property, plant and equipment additions	4,199	2,936
Notes and other financing receivables in connection with disposals of business/investment		5,848
Continuing and Discontinued Operations
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash and cash equivalents of continuing operations, beginning of period		234,516
Cash and cash equivalents of continuing and discontinued operations, beginning of period		234,516
Supplemental disclosure of noncash investing and financing activities:
Business Acquisition Contingent Consideration And Liabilities At Fair Value	$ 34	$ 10,969

Unaudited Condensed Consolidat7

Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Noncontrolling interest	$ 8,484					$ 8,484
Beginning balance, shares at Dec. 31, 2017		309,127,000
Beginning balance at Dec. 31, 2017	4,198,169	$ 3,091	$ 1,141,451	$ 3,124,103	$ (70,476)
Beginning Balance at January 1, 2018 at Dec. 31, 2017	4,206,653
Net income	152,960			152,960
Less: net loss attributable to noncontrolling interest	(197)
Net income	152,763
Other comprehensive income	50,513
Vesting of restricted stock units, net of shares withheld for employee tax		300,000
Vesting of restricted stock units, net of shares withheld for employee tax	(2,396)	$ 3	(2,399)
Stock-based compensation expense	$ 5,982		5,982
Exercise of stock options	226,260	226,000
Exercise of stock options, value	$ 2,255	$ 2	2,253
Shares withheld for net share settlements of stock option awards, shares		22,000
Shares withheld for net share settlement of stock option awards, value	(896)		(896)
Adoption of ASU 2018-02 (see Note 4)	5,345			(5,345)
Capital contributions from noncontrolling interest shareholder	4,107					4,107
Ending balance, shares at Mar. 31, 2018		309,631,000
Ending balance at Mar. 31, 2018	4,406,587	$ 3,096	$ 1,146,391	$ 3,271,718	$ (14,618)
Ending Balance at March 31, 2018 at Mar. 31, 2018	4,418,981
Noncontrolling interest	$ 12,394					$ 12,394

Interim Financial Statements (N

Interim Financial Statements (Notes)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interim Financial Statements	Interim Financial Statements The accompanying unaudited condensed consolidated 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 have prepared the accompanying unaudited condensed consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") applicable to interim financial statements. Accordingly, certain information related to our significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been condensed or omitted. These unaudited condensed consolidated financial statements reflect, in the opinion of management, all material adjustments (which include only normally recurring adjustments) necessary to fairly state, in all material respects, our financial position, results of operations and cash flows for the periods presented. Operating results for interim periods are not necessarily indicative of the results that can be expected for any subsequent interim period or for a full year. These interim financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018 ("2017 Form 10-K").

Business Combinations (Notes)

Business Combinations (Notes)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Business Combinations	Business Combinations During the three months ended March 31, 2018 , we completed one acquisition of a wholesale business in North America. This acquisition was not material to our results of operations or financial position as of and for the three months ended March 31, 2018. 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 acquisitions in Specialty included the acquisition of the aftermarket business of Warn Industries, Inc. ("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. We typically fund our acquisitions using borrowings under our credit facilities or other financing arrangements. During the year ended December 31, 2017, we recorded $307 million of goodwill related to these acquisitions, of which we expect $21 million to be deductible for income tax purposes. On December 10, 2017, we entered into an agreement to acquire Stahlgruber GmbH ("Stahlgruber"), a leading European wholesale distributor of aftermarket spare parts for passenger cars, tools, capital equipment and accessories with operations in Germany, Austria, Czech Republic, Italy, Slovenia, and Croatia with further sales to Switzerland. This acquisition will expand LKQ's geographic presence in continental Europe and serve as an additional strategic hub for our European operations. In addition, we believe this acquisition will allow for continued improvement in procurement, logistics and infrastructure optimization. The enterprise value for the pending Stahlgruber acquisition is €1.5 billion , which will be financed with the proceeds from €1.0 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. On May 3, 2018, the European Commission cleared the proposed acquisition for the entire European Union, except with respect to the wholesale automotive parts business in the Czech Republic. The acquisition of the Czech Republic wholesale business has been referred to the Czech competition authority for review. We anticipate that the closing of the transaction with respect to Stahlgruber's operations outside of the Czech Republic will occur during the second quarter of 2018. The Czech Republic wholesale business represents an immaterial portion of Stahlgruber's revenue and profitability. 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 three months ended March 31, 2018 and the last nine months of the year ended December 31, 2017 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 final estimation of 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 first quarter of 2018, the measurement period adjustments recorded for acquisitions completed in prior periods were not material. The purchase price allocations for the acquisitions completed during the year ended December 31, 2017 are as follows (in thousands): Year Ended December, 31, 2017 All (1) Receivables $ 73,782 Receivable reserves (7,032 ) Inventories (2) 150,342 Prepaid expenses and other current assets (295 ) Property , plant and equipment 41,039 Goodwill 314,817 Other intangibles 181,216 Other assets 3,257 Deferred income taxes (65,087 ) Current liabilities assumed (111,484 ) Debt assumed (33,586 ) Other noncurrent liabilities assumed (1,917 ) Contingent consideration liabilities (6,234 ) Other purchase price obligations (5,074 ) Notes issued (20,187 ) Settlement of pre-existing balances 242 Gains on bargain purchases (3) (3,870 ) Settlement of other purchase price obligations (non-interest bearing) 3,159 Cash used in acquisitions, net of cash acquired $ 513,088 (1) The amounts recorded during the year ended December 31, 2017 include $6 million and $3 million of adjustments to reduce property, plant and equipment and other assets for Rhiag-Inter Auto Parts Italia S.p.A. (“Rhiag”) and Pittsburgh Glass Works LLC (“PGW”), respectively. (2) The amount for our 2017 acquisitions includes a $4 million step-up adjustment related to our Warn acquisition. (3) The amount recorded during the year ended December 31, 2017 includes a $2 million increase to the gain on bargain purchase recorded for our Andrew Page acquisition as a result of changes to our estimate of the fair value of the net assets acquired. The remainder of the gain on bargain purchase recorded during the year ended December 31, 2017 is an immaterial amount related to another acquisition in Europe completed in the second quarter of 2017. The fair value of our intangible assets is based on a number of inputs including projections of future cash flows, assumed royalty rates and customer attrition rates, all of which are Level 3 inputs. 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 primary objectives of our acquisitions made during 2017 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. Certain 2017 acquisitions were completed to enable us to align our distribution model in the Benelux region. When we identify potential acquisitions, we attempt to target companies with a leading market presence, an experienced management team and workforce that provide 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 three months ended March 31, 2018 as though the businesses 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 . The pro forma adjustments are based upon unaudited financial information of the acquired entities (in thousands, except per share data): Three Months Ended March 31, 2018 2017 Revenue, as reported $ 2,720,764 $ 2,342,843 Revenue of purchased businesses for the period prior to acquisition: All acquisitions 26 139,216 Pro forma revenue $ 2,720,790 $ 2,482,059 Income from continuing operations, as reported $ 152,763 $ 140,809 Income from continuing operations of purchased businesses for the period prior to acquisition, and pro forma purchase accounting adjustments: All acquisitions 0 7,470 Acquisition related expenses, net of tax (1) 623 1,243 Pro forma income from continuing operations $ 153,386 $ 149,522 Earnings per share from continuing operations, basic - as reported $ 0.49 $ 0.46 Effect of purchased businesses for the period prior to acquisition: All acquisitions 0.00 0.02 Acquisition related expenses, net of tax (1) 0.00 0.00 Pro forma earnings per share from continuing operations, basic (2) $ 0.50 $ 0.49 Earnings per share from continuing operations, diluted - as reported $ 0.49 $ 0.45 Effect of purchased businesses for the period prior to acquisition: All acquisitions 0.00 0.02 Acquisition related expenses, net of tax (1) 0.00 0.00 Pro forma earnings per share from continuing operations, diluted (2) $ 0.49 $ 0.48 (1) Includes expenses related to acquisitions closed in the period and excludes expenses for acquisitions not yet completed. (2) The sum of the individual earnings per share amounts may not equal the total due to rounding. 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)	3 Months Ended
	Mar. 31, 2018
Discontinued Operations [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Discontinued Operations 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 15, "Segment and Geographic Information " for further information regarding our segments. In connection with the Stock and Asset Purchase 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 following table summarizes the operating results of the Company’s discontinued operations related to the sale described above for the three months ended March 31, 2017, as presented in Net loss from discontinued operations on the Unaudited Condensed Consolidated Statements of Income (in thousands): Three Months Ended March 31, 2017 Revenue $ 111,130 Cost of goods sold 100,084 Selling, general and administrative expenses 8,369 Operating income 2,677 Interest and other income, net (1) 1,204 Income from discontinued operations before taxes 3,881 Provision for income taxes 3,598 Equity in loss of unconsolidated subsidiaries (534 ) Loss from discontinued operations, net of tax (251 ) Loss on sale of discontinued operations, net of tax (2) (4,280 ) Net loss from discontinued operations $ (4,531 ) (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 . This expense was offset by foreign currency gains. (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 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. 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 will 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 three months ended March 31, 2018 and for the period between the sale date of March 1, 2017 and March 31, 2017, were $10 million and $4 million , respectively.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Financial Statement Information Allowance for Doubtful Accounts We have a reserve for uncollectible accounts, which was approximately $63 million and $58 million at March 31, 2018 and December 31, 2017 , respectively. Inventories Inventories consist of the following (in thousands): March 31, December 31, 2018 2017 Aftermarket and refurbished products $ 1,915,537 $ 1,877,653 Salvage and remanufactured products 469,648 487,108 Manufactured products 16,124 16,022 Total inventories $ 2,401,309 $ 2,380,783 Aftermarket and refurbished products and salvage and remanufactured products are primarily composed of finished goods. As of March 31, 2018 , manufactured products inventory was composed of $9 million of raw materials, $2 million of work in process, and $5 million of finished goods. As of December 31, 2017, manufactured products inventory was composed of $10 million of raw materials, $2 million of work in process, and $4 million of finished goods. Property, Plant and Equipment We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold on the Unaudited Condensed Consolidated Statements of Income. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the three months ended March 31, 2018 and 2017 was $37 million and $27 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. The changes in the carrying amount of goodwill by reportable segment for the three months ended March 31, 2018 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 584 259 (4,977 ) (4,134 ) Exchange rate effects (2,891 ) 42,510 202 39,821 Balance as of March 31, 2018 $ 1,707,047 $ 1,457,667 $ 407,484 $ 3,572,198 The components of other intangibles, net are as follows (in thousands): March 31, 2018 December 31, 2017 Intangible assets subject to amortization $ 658,704 $ 664,969 Indefinite-lived intangible assets Trademarks 81,300 78,800 Other indefinite-lived intangible assets 800 — Total $ 740,804 $ 743,769 The components of intangible assets subject to amortization are as follows (in thousands): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 333,802 $ (79,437 ) $ 254,365 $ 327,332 $ (75,095 ) $ 252,237 Customer and supplier relationships 520,386 (185,417 ) 334,969 510,113 (167,532 ) 342,581 Software and other technology related assets 129,851 (65,070 ) 64,781 124,049 (59,081 ) 64,968 Covenants not to compete 13,920 (9,331 ) 4,589 14,981 (9,798 ) 5,183 Total $ 997,959 $ (339,255 ) $ 658,704 $ 976,475 $ (311,506 ) $ 664,969 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 6-20 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 $24 million and $23 million during the three months ended March 31, 2018 and 2017 , respectively. Estimated amortization expense for each of the five years in the period ending December 31, 2022 is $75 million (for the remaining nine months of 2018), $85 million , $72 million , $60 million and $51 million , respectively. Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $208 million at both March 31, 2018 and December 31, 2017. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen AB ("Mekonomen") from AxMeko AB, an affiliate of Axel Johnson AB, for an aggregate purchase price of $181 million . Headquartered in Stockholm, Sweden, Mekonomen is the leading independent car parts and service chain in the Nordic region of Europe, offering a range of products including spare parts and accessories for cars, and workshop services for consumers and businesses. 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 March 31, 2018 , the book value of our investment in Mekonomen exceeded our share of the book value of Mekonomen's net assets by $125 million ; this difference is primarily related to goodwill and the fair value of other intangible assets. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. For the three months ended March 31, 2018 and 2017 , we recorded equity in earnings totaling $2 million and $0.3 million , respectively, related to our investment in Mekonomen, which represents our share of the results for the three months ended December 31, 2017 and 2016, respectively, including adjustments to convert the results to GAAP and to recognize the impact of our purchase accounting adjustments. In May 2017, we received a cash dividend of $7 million (SEK 67 million ) related to our investment in Mekonomen. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at March 31, 2018 was $163 million compared to a carrying value of $202 million . We evaluated our investment in Mekonomen for other-than-temporary impairment and concluded the decline in fair value was not other-than-temporary. 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 it. We record the warranty costs in Cost of goods sold on our Unaudited Condensed 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 Unaudited Condensed 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 December 31, 2017 $ 23,151 Warranty expense 10,000 Warranty claims (9,294 ) Balance as of March 31, 2018 $ 23,857 Recent Accounting Pronouncements Adoption of New Revenue Standard In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2014-09, "Revenue from Contracts with Customers" ("ASU 2014-09"). This update outlines a new comprehensive revenue recognition model that supersedes most current revenue recognition guidance and requires companies to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB has issued several updates to ASU 2014-09, which collectively with ASU 2014-09, represent the FASB Accounting Standards Codification Topic 606 (“ASC 606”). On January 1, 2018, we adopted ASC 606 for all contracts using the modified retrospective method, which means the historical periods are presented under the previous revenue standards with the cumulative net income effect being adjusted through retained earnings. Most of the changes resulting from our adoption of ASC 606 were changes in presentation within the Unaudited Condensed Consolidated Balance Sheets and the Unaudited Condensed Consolidated Statements of Income. Therefore, while we made adjustments to certain opening balances on our January 1, 2018 balance sheet, we made no adjustments to opening retained earnings. We expect the impact of the adoption of ASC 606 to be immaterial to our net income on an ongoing basis. See Note 5, "Revenue Recognition" for the required disclosures under ASC 606. With the adoption of ASC 606, we reclassified certain amounts related to variable consideration. Under ASC 606, we are required to present a refund liability and a returns asset within the Unaudited Condensed 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. Additionally, under ASC 606 , the changes in the refund liability are reported in revenue, and the changes in the returns assets are reported in Cost of goods sold in the Unaudited Condensed Consolidated Statements of Income. Prior to adoption, the change in the reserve for returns was generally reported as a net amount within revenue. As a result, the income statement presentation was adjusted concurrently with the balance sheet change beginning in 2018. The cumulative effect of the changes made to our consolidated January 1, 2018 balance sheet for the adoption of ASC 606 was as follows (in thousands): Balance as of December 31, 2017 Adjustments Due to ASC 606 Balance as of January 1, 2018 Balance Sheet Assets Accounts receivable $ 1,027,106 $ 38,511 $ 1,065,617 Prepaid expenses and other current assets 134,479 44,508 178,987 Liabilities Refund liability — 83,019 83,019 The impact of the adoption of ASC 606 on our Unaudited Condensed Consolidated Balance Sheet and Unaudited Condensed Consolidated Statement of Income as of and for the three months ended March 31, 2018 was as follows (in thousands): Balance as of March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Balance Sheet Assets Accounts receivable $ 1,211,788 $ 1,165,618 $ 46,170 Prepaid expenses and other current assets 180,367 127,358 53,009 Liabilities Refund liability 99,179 — 99,179 For the three months ended March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Income Statement Revenue $ 2,720,764 $ 2,728,712 $ (7,948 ) Cost of goods sold 1,666,793 1,674,173 (7,380 ) Selling, general and administrative expenses 766,891 767,459 (568 ) We have not included a table of the impact of the balance sheet adjustments on the Unaudited Condensed Consolidated Statement of Cash Flows as the adjustment will net to zero within the operating activities section of this statement. Under ASC 606, we have elected not to adjust consideration for the effect of a significant financing component at contract inception if the period between the transfer of goods to the customer and payment received from the customer is one year or less. Generally, our payment terms are short term in nature, but in some instances we may offer extended terms to customers exceeding one year such that interest would be accrued with respect to those contracts. The interest that would be accrued related to these contracts is immaterial at March 31, 2018. 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. Other Recently Adopted Accounting Pronouncements During the first quarter of 2018, we adopted ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which changes how entities will recognize, measure, present and make disclosures about certain financial assets and financial liabilities. The adoption of ASU 2016-01 did not have a significant impact on our financial position, results of operations, cash flows or disclosures. During the first quarter of 2018, we adopted ASU No. 2016-15, "Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"), which includes guidance on classification for the following items: debt prepayment or debt extinguishment costs, settlement of zero coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims and corporate-owned or bank-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions, and other separately identifiable cash flows where application of the predominance principle is prescribed. No adjustments were required in our Unaudited Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2018. Within our Unaudited Condensed Consolidating Statements of Cash Flows in Note 16, "Condensed Consolidating Financial Information ," we now present a new line item, Payments of deferred purchase price on receivables securitization, as a result of adopting ASU 2016-15; prior year cash flow information within this footnote has been recast to reflect the impact of adopting this accounting standard. Other than the addition of this new line item, there was no impact to our Unaudited Condensed Consolidating Statements of Cash Flows. During the first quarter of 2018, we adopted ASU No. 2017-01 "Clarifying the Definition of a Business" (“ASU 2017-01”), which requires an evaluation of whether substantially all of the fair value of assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transaction does not qualify as a business. The guidance also requires an acquired business to include at least one substantive process and narrows the definition of outputs. The adoption of ASU 2017-01 did not have a material impact on our unaudited condensed consolidated financial statements. 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 allows a reclassification from accumulated other comprehensive income 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"). In addition, under ASU 2018-02, an entity is required to provide certain disclosures regarding stranded tax effects. ASU 2018-02 is effective for fiscal years and interim periods beginning after December 15, 2018; early adoption is permitted. As a result of the adoption of ASU 2018-02, we recorded a $5 million reclassification to increase Accumulated Other Comprehensive (Loss) Income and decrease Retained Earnings. Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, "Leases" ("ASU 2016-02"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The main difference between current GAAP and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under current GAAP. ASU 2016-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. The standard requires that entities apply the effects of these changes using a modified retrospective approach, which includes a number of optional practical expedients. While we are still in the process of quantifying the impact that the adoption of ASU 2016-02 will have on our consolidated financial statements and related disclosures, we anticipate the adoption will materially affect our consolidated balance sheet and disclosures, as the majority of our operating leases will be recorded on the balance sheet under ASU 2016-02. While we do not anticipate the adoption of this accounting standard to have a material impact on our consolidated statements of income at this time, this conclusion may change as we finalize our assessment. In order to assist in our timely implementation of the new standard, we have purchased new software to track our leases. We have engaged a third party to assist with the implementation of the new software with an expectation to complete the implementation by the end of 2018. In August 2017, the FASB issued 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. ASU 2017-12 is effective for fiscal years and interim periods beginning after December 15, 2018; early adoption is permitted. Entities will adopt the provisions of ASU 2017-12 by applying a modified retrospective approach to existing hedging relationships as of the adoption date. At this time, we are still evaluating the impact of this standard on our financial statements.

Revenue Recognition Revenue Rec

Revenue Recognition Revenue Reconition (Notes)	3 Months Ended
	Mar. 31, 2018
Revenue Recognition [Abstract]
Revenue Recognition DIsclosure	Revenue Recognition The core principle of ASC 606 is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASC 606 defines a five-step process to achieve this core principle, which includes: 1. Identifying contracts with customers, 2. Identifying performance obligations within those contracts, 3. Determining the transaction price, 4. Allocating the transaction price to the performance obligation in the contract, which may include an estimate of variable consideration, and 5. Recognizing revenue when or as each performance obligation is satisfied. The majority of our revenue is derived from the sale of vehicle parts. Under both the previous revenue standards and ASC 606, we recognize revenue when the products are shipped to, delivered to or picked up by customers and title has transferred. 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): Three Months Ended March 31, 2018 2017 North America $ 1,172,585 $ 1,079,875 Europe 1,037,046 819,167 Specialty 350,674 313,899 Parts and services 2,560,305 2,212,941 Other 160,459 129,902 Total revenue $ 2,720,764 $ 2,342,843 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 additional services that are generally recorded concurrently with the related product sales, such as the sale of service-type warranties and fees for admission to our self service yards. In North America, our vehicle replacement products include sheet metal collision parts such as doors, hoods, fenders; bumper covers; head and tail lamps; automotive glass products such as windshields; mirrors and grills; 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 Specialty, 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 to 36 months. Under 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 January 1, 2018 $ 19,465 Additional warranty revenue deferred 10,097 Warranty revenue recognized (8,055 ) Balance March 31, 2018 $ 21,507 Other Revenue Revenue from other sources includes scrap sales, bulk sales to mechanical manufacturers (including cores) and sales of aluminum ingots and sows from our furnace operations. We derive scrap metal 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. We constrain our estimate of consideration to be received to the extent that we believe there will be a significant reversal in revenue. Revenue by Geographic Area See Note 15, "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 which includes returns, discounts, rebates, refunds, credits, price concessions, incentives, performance bonuses, or other similar items. The previous revenue guidance required us to estimate the transaction price using a best estimate approach. 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. In addition, our estimates of variable consideration are constrained to the extent that a significant reversal in revenue is expected. We recorded a refund liability and return asset for expected returns of $99 million and $53 million , respectively as of March 31, 2018 and a net reserve of $38 million as of December 31, 2017. The refund liability is presented separately on the balance sheet within liabilities while the return asset is presented within prepaid expenses and other current assets. Additionally, we recorded a reserve for our variable consideration of $44 million and $78 million as of March 31, 2018 and December 31, 2017, respectively. Variable consideration consists primarily of discounts, volume rebates, and other customer sales incentives which are recorded in Receivables, net on the Unaudited Condensed Consolidated Balance Sheets. 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.

Restructuring and Acquisition R

Restructuring and Acquisition Related Expenses	3 Months Ended
	Mar. 31, 2018
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, totaled $2 million and $3 million for the three months ended March 31, 2018 and 2017 , respectively. Acquisition related expenses for the three months ended March 31, 2018 consisted of external costs for (i) completed acquisitions, (ii) pending acquisitions as of March 31, 2018, including $1 million related to Stahlgruber, and (iii) potential acquisitions that were terminated. Acquisition related expenses for the three months ended March 31, 2017 consisted of $1 million of costs related to our acquisition of Andrew Page, with the remaining $2 million related to other completed acquisitions and acquisitions that were pending as of March 31, 2017. Acquisition Integration Plans and Restructuring During the three months ended March 31, 2018 , we incurred $2 million of restructuring expenses. Expenses incurred during the three months ended March 31, 2018 were primarily related to the integration of our acquisition of Andrew Page. This integration included the closure of duplicate facilities and termination of employees. During the three months ended March 31, 2017, we incurred less than $1 million of restructuring expenses, primarily related to the ongoing integration activities in our Specialty segment. 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 2018. 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 $15 million .

Equity Incentive Plans

Equity Incentive Plans	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [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 may grant qualified and nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units (“RSUs”), performance shares and performance units under the LKQ Corporation 1998 Equity Incentive Plan (the “Equity Incentive Plan”). We have granted RSUs, stock options, and restricted stock under the Equity Incentive Plan. We expect to issue new shares of common stock to cover past and future equity grants. RSUs RSUs vest over periods of up to five years, subject to a continued service condition. Currently outstanding RSUs 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 most 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; we have an immaterial amount of RSUs containing other performance-based vesting conditions. 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. The fair value of RSUs that vested during the three months ended March 31, 2018 was $15 million . The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the three months ended March 31, 2018 : 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, 2018 1,624,390 $ 29.94 Granted 562,380 $ 43.35 Vested (359,863 ) $ 29.00 Forfeited / Canceled (18,015 ) $ 31.29 Unvested as of March 31, 2018 1,808,892 $ 34.28 Expected to vest after March 31, 2018 1,630,647 $ 34.26 3.0 $ 61,883 (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. Stock Options Stock options vest over periods of up to five years, subject to a continued service condition. Stock options expire either six or ten years from the date they are granted. No options were granted during the three months ended March 31, 2018 . No options vested during the three months ended March 31, 2018 ; 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 three months ended March 31, 2018 : Number Outstanding Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Balance as of January 1, 2018 1,738,073 $ 9.20 Exercised (226,260 ) $ 9.97 $ 7,123 Canceled (509 ) $ 32.31 Balance as of March 31, 2018 1,511,304 $ 9.08 1.4 $ 43,631 Exercisable as of March 31, 2018 1,511,304 $ 9.08 1.4 $ 43,631 (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. Stock-Based Compensation Expense Total pre-tax stock-based compensation expense for RSUs totaled $6 million and $7 million for the three months ended March 31, 2018 and 2017 , respectively. As of March 31, 2018 , unrecognized compensation expense related to unvested RSUs is $51 million . Stock-based compensation expense related to these awards will be different to the extent that forfeitures are realized.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following chart sets forth the computation of earnings per share (in thousands, except per share amounts): Three Months Ended March 31, 2018 2017 Income from continuing operations $ 152,763 $ 140,809 Denominator for basic earnings per share—Weighted-average shares outstanding 309,517 308,028 Effect of dilutive securities: RSUs 619 564 Stock options 1,211 1,708 Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding 311,347 310,300 Basic earnings per share from continuing operations $ 0.49 $ 0.46 Diluted earnings per share from continuing operations $ 0.49 $ 0.45 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 three months ended March 31, 2018 and 2017 (in thousands): Three Months Ended March 31, 2018 2017 Antidilutive securities: RSUs — 147 Stock options — 78

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Three Months Ended March 31, 2017 Foreign Unrealized Gain Unrealized (Loss) Gain Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income 20,068 832 836 — 21,736 Income tax effect — (356 ) (318 ) — (674 ) Reclassification of unrealized loss (gain) — 4,257 (171 ) — 4,086 Reclassification of deferred income taxes — (1,570 ) 48 — (1,522 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive (loss) income from unconsolidated subsidiaries — — — (162 ) (162 ) Ending balance $ (250,950 ) $ 11,254 $ (5,778 ) $ (162 ) $ (245,636 ) The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Three Months Ended March 31, 2018 Foreign Unrealized (Loss) Gain Unrealized (Loss) Gain on Pension Plans Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax income (loss) 48,435 (4,501 ) (629 ) — 43,305 Income tax effect 50 1,053 8 — 1,111 Reclassification of unrealized loss — 8,747 — — 8,747 Reclassification of deferred income taxes — (2,045 ) — — (2,045 ) Other comprehensive loss from unconsolidated subsidiaries — — — (605 ) (605 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Ending balance $ (20,589 ) $ 17,278 $ (9,393 ) $ (1,914 ) $ (14,618 ) Accumulated Other Comprehensive Income (Loss) The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Three Months Ended March 31, 2018 Foreign Unrealized (Loss) Gain Unrealized (Loss) Gain on Pension Plans Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax income (loss) 48,435 (4,501 ) (629 ) — 43,305 Income tax effect 50 1,053 8 — 1,111 Reclassification of unrealized loss — 8,747 — — 8,747 Reclassification of deferred income taxes — (2,045 ) — — (2,045 ) Other comprehensive loss from unconsolidated subsidiaries — — — (605 ) (605 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Ending balance $ (20,589 ) $ 17,278 $ (9,393 ) $ (1,914 ) $ (14,618 ) Three Months Ended March 31, 2017 Foreign Unrealized Gain Unrealized (Loss) Gain Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income 20,068 832 836 — 21,736 Income tax effect — (356 ) (318 ) — (674 ) Reclassification of unrealized loss (gain) — 4,257 (171 ) — 4,086 Reclassification of deferred income taxes — (1,570 ) 48 — (1,522 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive (loss) income from unconsolidated subsidiaries — — — (162 ) (162 ) Ending balance $ (250,950 ) $ 11,254 $ (5,778 ) $ (162 ) $ (245,636 ) Net unrealized gains on our interest rate swaps totaling $2 million and net unrealized losses of $1 million were reclassified to Interest expense, net in our Unaudited Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, respectively. We also reclassified gains of $1 million and $2 million to Interest expense, net related to our cross currency swaps during the three months ended March 31, 2018 and 2017, respectively. Also related to our cross currency swaps, we reclassified losses of $12 million and $5 million to Other income, net in our Unaudited Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, respectively; these gains and losses offset the impact of the remeasurement of the underlying contracts. The deferred income taxes related to our cash flow hedges were reclassified from Accumulated other comprehensive income (loss) to provision for income taxes. As a result of the adoption of ASU 2018-02 in the first quarter of 2018, we recorded a $5 million reclassification to increase Accumulated Other Comprehensive (Loss) Income and decrease Retained Earnings. See Note 4, "Financial Statement Information " for further information regarding the adoption of ASU 2018-02.

Long-Term Obligations

Long-Term Obligations	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Long-Term Obligations	Long-Term Obligations Long-term obligations consist of the following (in thousands): March 31, December 31, 2018 2017 Senior secured credit agreement: Term loans payable $ 700,395 $ 704,800 Revolving credit facilities 1,172,140 1,283,551 U.S. Notes (2023) 600,000 600,000 Euro Notes (2024) 616,200 600,150 Receivables securitization facility 100,000 100,000 Notes payable through October 2025 at weighted average interest rates of 1.4% and 1.4%, respectively 29,413 29,146 Other long-term debt at weighted average interest rates of 1.9% and 1.7%, respectively 120,940 110,633 Total debt 3,339,088 3,428,280 Less: long-term debt issuance costs (23,157 ) (21,476 ) Less: current debt issuance costs (2,866 ) (2,824 ) Total debt, net of debt issuance costs 3,313,065 3,403,980 Less: current maturities, net of debt issuance costs (142,277 ) (126,360 ) Long term debt, net of debt issuance costs $ 3,170,788 $ 3,277,620 Senior Secured Credit Agreement On December 1, 2017, LKQ Corporation, LKQ Delaware LLP, and certain other subsidiaries (collectively, the "Borrowers") entered into Amendment No. 2 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) extend the maturity date by approximately two years to January 29, 2023; (2) increase the total availability under the revolving credit facility's multicurrency component from $2.45 billion to $2.75 billion ; (3) increase the permitted net leverage ratio thresholds, including a temporary step-up in the allowable net leverage ratio in the case of permitted acquisitions; (4) modify the applicable margins and fees in the pricing grid; (5) increase the ability of LKQ and its subsidiaries to incur additional indebtedness; and (6) make other immaterial or clarifying modifications and amendments. The increase in the revolving credit facility's multicurrency component of $300 million will be used for general corporate purposes. Amounts under the revolving credit facility are due and payable upon maturity of the Credit Agreement on January 29, 2023. Term loan borrowings, which totaled $700 million as of March 31, 2018, are due and payable in quarterly installments equal to $4 million on the last day of each fiscal quarter ending on or after March 31, 2018 and prior to March 31, 2019 and $9 million on the last day of each fiscal quarter ending on or after March 31, 2019, with the remaining balance due and payable on January 29, 2023. 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 both March 31, 2018 and December 31, 2017 were 2.2% . 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 0.025% and 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, $22 million and $18 million were classified as current maturities at March 31, 2018 and December 31, 2017. As of March 31, 2018 , there were letters of credit outstanding in the aggregate amount of $65 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 March 31, 2018 was $1.5 billion . Related to the execution of Amendment No. 2 to the Fourth Amended and Restated Credit Agreement in December 2017, we incurred $5 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. 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) are 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") and U.S. Bank National Association, as trustee. The U.S. Notes (2023) are registered under the Securities Act of 1933. The U.S. Notes (2023) bear interest at a rate of 4.75% per year from the most recent payment date on which interest has been paid or provided for. Interest on the U.S. Notes (2023) is payable in arrears on May 15 and November 15 of each year. The U.S. Notes (2023) are fully and unconditionally guaranteed, jointly and severally, by the Guarantors. The U.S. Notes (2023) and the related guarantees are, respectively, LKQ Corporation's and each Guarantor's senior unsecured obligations and are 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) are effectively subordinated to all of the liabilities of our subsidiaries that are not guaranteeing the U.S. Notes (2023) to the extent of the assets of those subsidiaries. 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 the Irish Stock Exchange. Euro Notes (2026/28) - Subsequent Event 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, will be used to (i) finance a portion of the consideration payable for the pending 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, the Company and certain of the Company’s 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, beginning on October 1, 2018. 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. We have agreed to use commercially reasonable efforts to cause the Euro Notes (2026/28) to be listed on the Global Exchange Market of Euronext Dublin as promptly as practicable after the issue date of the Euro Notes (2026/28) (and in any event prior to May 24, 2018, the 45th day following the issue date of the notes). In addition to other conventional redemption provisions, the Euro Notes (2026/28) are subject to a special mandatory redemption in the event that on or prior to October 6, 2018, (a) the Stahlgruber acquisition is not consummated or (b) the purchase and sale agreement governing the Stahlgruber acquisition is terminated. The special mandatory redemption price will be equal to 100% of the initial issue price of the notes, plus accrued and unpaid interest from the date of initial issuance (or, if after the October 1, 2018 interest payment date, from October 1, 2018) up to, but excluding, the special mandatory redemption date. Receivables Securitization Facility On November 29, 2016, we amended the terms of our receivables securitization facility with The Bank of Tokyo-Mitsubishi UFJ, LTD. ("BTMU") to: (i) extend the term of the facility to November 8, 2019; (ii) increase the maximum amount available to $100 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 BTMU for the benefit of conduit investors and/or financial institutions for cash proceeds. Upon payment of the receivables by customers, rather than remitting to BTMU 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 in our Consolidated Balance Sheets, under which the receivables included in the program collateralize the amounts invested by BTMU, 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. As of both March 31, 2018 and December 31, 2017 , $144 million of net receivables were collateral for the investment under the receivables facility. 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) the London InterBank Offered Rate ("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. As of March 31, 2018 , the interest rate under the receivables facility was based on commercial paper rates and was 2.7% . The outstanding balances of $100 million as of both March 31, 2018 and December 31, 2017, were classified as long-term on the Unaudited Condensed Consolidated Balance Sheets because we have the ability and intent to refinance these borrowings on a long-term basis.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	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. The effective portion of changes in the fair value of the interest rate swap agreements is recorded in Accumulated Other Comprehensive Income (Loss) and is reclassified to interest expense when the underlying interest payment has an impact on earnings. The ineffective portion of changes in the fair value of the interest rate swap agreements is reported in interest expense. Our interest rate swap contracts have maturity dates ranging from January to June 2021. As of March 31, 2018 , we held interest rate swap contracts representing $590 million of U.S. dollar-denominated debt. 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. The effective portion of the changes in fair value of the foreign currency forward contracts is recorded in Accumulated Other Comprehensive Income (Loss) and reclassified to other income, net when the underlying transaction has an impact on earnings. In 2016, we entered into three cross currency swap agreements for a total notional amount of $422 million ( €400 million ). The notional amount steps down by €15 million annually through 2020 with the remainder maturing in January 2021. These cross currency swaps 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. The effective portion of the changes in the fair value of the derivative instruments is recorded in Accumulated Other Comprehensive Income (Loss) and is reclassified to interest expense, net when the underlying transactions have an impact on earnings. The following table summarizes the notional amounts and fair values of our designated cash flow hedges as of March 31, 2018 and December 31, 2017 (in thousands): Notional Amount Fair Value at March 31, 2018 (USD) Fair Value at December 31, 2017 (USD) March 31, 2018 December 31, 2017 Other Assets Other Noncurrent Liabilities Other Assets Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 590,000 $ 590,000 $ 24,253 $ — $ 19,102 $ — Cross currency swap agreements USD/euro $ 402,580 $ 406,546 9,208 77,812 5,504 61,492 Total cash flow hedges $ 33,461 $ 77,812 $ 24,606 $ 61,492 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 in our Unaudited Condensed Consolidated Balance Sheets. The impact of netting the fair values of these contracts would result in a decrease to Other Assets and Other Noncurrent Liabilities on our Unaudited Condensed Consolidated Balance Sheets of $17 million and $12 million at March 31, 2018 and December 31, 2017 , respectively. The activity related to our cash flow hedges is included in Note 9, "Accumulated Other Comprehensive Income (Loss) ." Ineffectiveness related to our cash flow hedges was immaterial to our results of operations during the three months ended March 31, 2018 and 2017 . We do not expect future ineffectiveness related to our cash flow hedges to have a material effect on our results of operations. As of March 31, 2018 , we estimate that less than $1 million of derivative gains (net of tax) included in Accumulated Other Comprehensive Income (Loss) will be reclassified into our Unaudited Condensed Consolidated Statements of Income within the next 12 months. 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 and intercompany financing transactions 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 March 31, 2018 and December 31, 2017, along with the effect on our results of operations during the three months ended March 31, 2018 and 2017 , were immaterial.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Financial Assets and Liabilities Measured at Fair Value We use the market and income approaches to estimate the fair value our financial assets and liabilities, and during the three months ended March 31, 2018 , 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 in 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 March 31, 2018 and December 31, 2017 (in thousands): Balance as of March 31, 2018 Fair Value Measurements as of March 31, 2018 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 46,196 $ — $ 46,196 $ — Interest rate swaps 24,253 — 24,253 — Cross currency swap agreements 9,208 — 9,208 — Total Assets $ 79,657 $ — $ 79,657 $ — Liabilities: Contingent consideration liabilities $ 2,700 $ — $ — $ 2,700 Deferred compensation liabilities 50,676 — 50,676 — Cross currency swap agreements 77,812 — 77,812 — Total Liabilities $ 131,188 $ — $ 128,488 $ 2,700 Balance as of December 31, 2017 Fair Value Measurements as of December 31, 2017 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 45,984 $ — $ 45,984 $ — Interest rate swaps 19,102 — 19,102 — Cross currency swap agreements 5,504 — 5,504 — Total Assets $ 70,590 $ — $ 70,590 $ — Liabilities: Contingent consideration liabilities $ 2,636 $ — $ — $ 2,636 Deferred compensation liabilities 47,199 — 47,199 — Cross currency swap agreements 61,492 — 61,492 — Total Liabilities $ 111,327 $ — $ 108,691 $ 2,636 The cash surrender value of life insurance is included in Other assets on our Unaudited Condensed 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 Unaudited Condensed Consolidated Balance Sheets; the noncurrent portion of these amounts is included in Other noncurrent liabilities on our Unaudited Condensed 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 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 Unaudited Condensed Consolidated Balance Sheets at cost. Based on market conditions as of March 31, 2018 and December 31, 2017 , the fair value of our credit agreement borrowings reasonably approximated the carrying values of $1.9 billion and $2.0 billion , respectively. In addition, based on market conditions, the fair values of the outstanding borrowings under the receivables facility reasonably approximated the carrying values of $100 million at both March 31, 2018 and December 31, 2017 . As of March 31, 2018 and December 31, 2017 , the fair values of the U.S. Notes (2023) were approximately $602 million and $615 million , respectively, compared to a carrying value of $ 600 million . As of March 31, 2018 and December 31, 2017 , the fair values of the Euro Notes (2024) were approximately $652 million and $658 million compared to carrying values of $616 million and $600 million , respectively. 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 March 31, 2018 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 value of our Euro Notes (2024) is determined based upon observable market inputs including quoted market prices in a market that is not active, and therefore is classified as Level 2 within the fair value hierarchy.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Leases We are obligated under noncancelable operating leases for corporate office space, warehouse and distribution facilities, trucks and certain equipment. The future minimum lease commitments under these leases at March 31, 2018 are as follows (in thousands): Nine months ending December 31, 2018 $ 186,038 Years ending December 31: 2019 207,724 2020 171,530 2021 132,755 2022 107,405 2023 91,007 Thereafter 532,760 Future Minimum Lease Payments $ 1,429,219 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.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes At the end of each interim period, we estimate our annual effective tax rate and apply that rate to our interim earnings. We also record the tax impact of certain unusual or infrequently occurring items, including changes in judgment about valuation allowances and the effects of changes in tax laws or rates, in the interim period in which they occur. The computation of the annual estimated effective tax rate at each interim period requires certain estimates and significant judgment including, but not limited to, the expected operating income for the year, projections of the proportion of income earned and taxed in state and foreign jurisdictions, permanent and temporary differences between book and taxable income, and the likelihood of recovering deferred tax assets generated in the current year. The accounting estimates used to compute the provision for income taxes may change as new events occur, additional information is obtained or as the tax environment changes. Our effective income tax rate for the three months ended March 31, 2018 was 24.7% , compared to 33.9% for the comparable prior year period. The decrease was primarily attributable to the reduction of the U.S. federal statutory income tax rate from 35% to 21% as a result of the enactment of the Tax Act in December 2017. The effective tax rate also reflects the impact of favorable discrete items of approximately $3 million for each of the three months ended March 31, 2018 and 2017 for excess tax benefits from stock-based payments. The quarter over quarter change in these amounts increased the effective tax rate by 0.2% compared to the prior year. The Tax Act introduced broad and complex changes to the U.S. tax code, including the aforementioned reduction in the U.S. corporate tax rate, a one-time transition tax on the historical unremitted earnings of foreign subsidiaries, and a new minimum tax on foreign earnings (Global Intangible Low-Taxed Income, “GILTI”). On December 22, 2017, the SEC staff issued Staff Accounting Bulletin 118 ("SAB 118"), which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the related accounting for provisional amounts under ASC 740, "Accounting for Income Taxes." As a result of the Tax Act, in 2017, we recognized a provisional tax liability of $51 million related to the one-time transition tax on historical foreign earnings, payable over a period of eight years. We also recorded a provisional decrease to net U.S. deferred tax liabilities of $73 million . For a description of the impact of the Tax Act for the year ended December 31, 2017, refer to Note 13, "Income Taxes" of our financial statements as of and for the year ended December 31, 2017 included in the 2017 Form 10-K. During the three-month period ended March 31, 2018, there were no changes made to the provisional amounts recognized in 2017. We continue to gather the information necessary to finalize those provisional amounts. Our estimates could be affected as we gain a more thorough understanding of the Tax Act from additional guidance issued by the U.S. tax authorities. Changes to the provisional estimates of the tax effect of the Tax Act will be recorded as a discrete item in the interim period the amounts are considered complete. The Company has included the estimated 2018 impact of the GILTI Tax as a period cost and included it as part of the estimated annual effective tax rate. The 2018 estimated annual effective tax rate also includes the impact of all other U.S. tax reform provisions that were effective on January 1, 2018. These estimates are subject to change as additional guidance on the tax reform provisions is issued.

Segment and Geographic Informat

Segment and Geographic Information	3 Months Ended
	Mar. 31, 2018
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 Three Months Ended March 31, 2018 Revenue: Third Party $ 1,329,660 $ 1,040,430 $ 350,674 $ — $ 2,720,764 Intersegment 183 — 1,118 (1,301 ) — Total segment revenue $ 1,329,843 $ 1,040,430 $ 351,792 $ (1,301 ) $ 2,720,764 Segment EBITDA $ 177,713 $ 75,534 $ 41,969 $ — $ 295,216 Depreciation and amortization (1) 21,228 32,757 7,081 — 61,066 Three Months Ended March 31, 2017 Revenue: Third Party $ 1,208,047 $ 820,897 $ 313,899 $ — $ 2,342,843 Intersegment 193 — 1,035 (1,228 ) — Total segment revenue $ 1,208,240 $ 820,897 $ 314,934 $ (1,228 ) $ 2,342,843 Segment EBITDA $ 176,135 $ 78,694 $ 35,441 $ — $ 290,270 Depreciation and amortization (1) 20,378 24,751 5,475 — 50,604 (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, change in fair value of contingent consideration liabilities, other acquisition related gains and losses and equity in earnings of unconsolidated subsidiaries. EBITDA, which is the basis for Segment EBITDA, is calculated as net income excluding noncontrolling interest, discontinued operations, depreciation, amortization, interest and income tax expense. The table below provides a reconciliation of Net Income to Segment EBITDA (in thousands): Three Months Ended March 31, 2018 2017 Net income $ 152,763 $ 136,278 Less: net loss attributable to noncontrolling interest (197 ) — Net income attributable to LKQ stockholders 152,960 136,278 Subtract: Net loss from discontinued operations — (4,531 ) Net income from continuing operations attributable to LKQ stockholders 152,960 140,809 Add: Depreciation and amortization 56,458 48,656 Depreciation and amortization - cost of goods sold 4,608 1,948 Interest expense, net 28,515 23,988 Provision for income taxes 49,584 72,155 EBITDA 292,125 287,556 Subtract: Equity in earnings of unconsolidated subsidiaries 1,412 214 Add: Restructuring and acquisition related expenses (1) 4,054 2,928 Inventory step-up adjustment - acquisition related 403 — Change in fair value of contingent consideration liabilities 46 — Segment EBITDA $ 295,216 $ 290,270 (1) See Note 6, "Restructuring and Acquisition Related Expenses ," for further information. The following table presents capital expenditures by reportable segment (in thousands): Three Months Ended March 31, 2018 2017 Capital Expenditures North America $ 29,662 $ 16,760 Europe 28,815 20,458 Specialty 3,712 3,582 Discontinued operations — 3,598 Total capital expenditures $ 62,189 $ 44,398 The following table presents assets by reportable segment (in thousands): March 31, December 31, 2018 2017 Receivables, net North America $ 448,973 $ 379,666 Europe 622,592 555,372 Specialty 140,223 92,068 Total receivables, net (1) 1,211,788 1,027,106 Inventories North America 1,053,322 1,076,393 Europe 998,617 964,068 Specialty 349,370 340,322 Total inventories 2,401,309 2,380,783 Property, Plant and Equipment, net North America 542,453 537,286 Europe 304,048 293,539 Specialty 83,255 82,264 Total property, plant and equipment, net 929,756 913,089 Equity Method Investments North America 336 336 Europe 207,874 208,068 Total equity method investments 208,210 208,404 Other unallocated assets 4,885,115 4,837,490 Total assets $ 9,636,178 $ 9,366,872 (1) Refer to Note 4, "Financial Statement Information," for the increase in total receivables, net compared to December 31, 2017 as a result of the adoption of ASC 606. We report net receivables; inventories; net property , plant and equipment; 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, prepaid and other current and noncurrent assets, goodwill, other intangibles and income taxes. The majority of our operations are conducted in the U.S. Our European operations are located in the U.K., the Netherlands, Belgium, Italy, Czech Republic, Poland, Slovakia and other European countries. Our operations in other countries include operations in Canada, engine remanufacturing and bumper refurbishing 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): Three Months Ended March 31, 2018 2017 Revenue United States $ 1,560,027 $ 1,417,040 United Kingdom 430,992 382,652 Other countries 729,745 543,151 Total revenue $ 2,720,764 $ 2,342,843 The following table sets forth our tangible long-lived assets by geographic area (in thousands): March 31, December 31, 2018 2017 Long-lived Assets United States $ 589,848 $ 583,236 United Kingdom 186,347 178,021 Other countries 153,561 151,832 Total long-lived assets $ 929,756 $ 913,089

Condensed Consolidating Financi

Condensed Consolidating Financial Information	3 Months Ended
	Mar. 31, 2018
Condensed Consolidating Financial Information [Abstract]
Condensed Consolidating Financial Information	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 unaudited 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 unaudited condensed consolidating financial statements below have been prepared from our financial information on the same basis of accounting as the unaudited condensed 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. LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Income (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 1,577,595 $ 1,180,242 $ (37,073 ) $ 2,720,764 Cost of goods sold — 945,915 757,951 (37,073 ) 1,666,793 Gross margin — 631,680 422,291 — 1,053,971 Selling, general and administrative expenses 9,130 426,797 330,964 — 766,891 Restructuring and acquisition related expenses — 330 3,724 — 4,054 Depreciation and amortization 29 24,338 32,091 — 56,458 Operating (loss) income (9,159 ) 180,215 55,512 — 226,568 Other expense (income): Interest expense, net 18,008 212 10,295 — 28,515 Intercompany interest (income) expense, net (15,400 ) 9,680 5,720 — — Other (income) expense, net (1,015 ) (5,882 ) 4,015 — (2,882 ) Total other expense, net 1,593 4,010 20,030 — 25,633 (Loss) income before (benefit) provision for income taxes (10,752 ) 176,205 35,482 — 200,935 (Benefit) provision for income taxes (3,904 ) 45,877 7,611 — 49,584 Equity in earnings of unconsolidated subsidiaries — — 1,412 — 1,412 Equity in earnings (loss) of subsidiaries 159,808 5,110 — (164,918 ) — Net income 152,960 135,438 29,283 (164,918 ) 152,763 Less: net loss attributable to noncontrolling interest — — (197 ) — (197 ) Net income attributable to LKQ stockholders $ 152,960 $ 135,438 $ 29,480 $ (164,918 ) $ 152,960 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Income (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 1,453,516 $ 929,971 $ (40,644 ) $ 2,342,843 Cost of goods sold — 863,375 590,019 (40,644 ) 1,412,750 Gross margin — 590,141 339,952 — 930,093 Selling, general and administrative expenses 9,183 385,528 248,106 — 642,817 Restructuring and acquisition related expenses — 1,883 1,045 — 2,928 Depreciation and amortization 30 23,481 25,145 — 48,656 Operating (loss) income (9,213 ) 179,249 65,656 — 235,692 Other expense (income): Interest expense, net 16,180 198 7,610 — 23,988 Intercompany interest (income) expense, net (5,672 ) 1,019 4,653 — — Other expense (income), net 291 (169 ) (1,168 ) — (1,046 ) Total other expense, net 10,799 1,048 11,095 — 22,942 (Loss) income from continuing operations before (benefit) provision for income taxes (20,012 ) 178,201 54,561 — 212,750 (Benefit) provision for income taxes (7,437 ) 70,038 9,554 — 72,155 Equity in (loss) earnings of unconsolidated subsidiaries (182 ) — 396 — 214 Equity in earnings of subsidiaries 153,566 4,813 — (158,379 ) — Income from continuing operations 140,809 112,976 45,403 (158,379 ) 140,809 Net (loss) income from discontinued operations (4,531 ) (4,531 ) 2,050 2,481 (4,531 ) Net income $ 136,278 $ 108,445 $ 47,453 $ (155,898 ) $ 136,278 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Comprehensive Income (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 152,960 $ 135,438 $ 29,283 $ (164,918 ) $ 152,763 Less: net loss attributable to noncontrolling interest — — (197 ) — (197 ) Net income attributable to LKQ stockholders 152,960 135,438 29,480 (164,918 ) 152,960 Other comprehensive income (loss): Foreign currency translation, net of tax 48,485 (2,183 ) 49,055 (46,872 ) 48,485 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,254 — — — 3,254 Net change in unrealized gains/losses on pension plans, net of tax (621 ) (621 ) — 621 (621 ) Net change in other comprehensive loss from unconsolidated subsidiaries (605 ) — (605 ) 605 (605 ) Other comprehensive income (loss) 50,513 (2,804 ) 48,450 (45,646 ) 50,513 Comprehensive income 203,473 132,634 77,733 (210,564 ) 203,276 Less: comprehensive loss attributable to noncontrolling interest — — (197 ) — (197 ) Comprehensive income attributable to LKQ stockholders $ 203,473 $ 132,634 $ 77,930 $ (210,564 ) $ 203,473 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Comprehensive Income (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 136,278 $ 108,445 $ 47,453 $ (155,898 ) $ 136,278 Other comprehensive income (loss): Foreign currency translation, net of tax 21,579 3,878 21,132 (25,010 ) 21,579 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,163 (133 ) — 133 3,163 Net change in unrealized gains/losses on pension plans, net of tax (3,041 ) (2,805 ) (236 ) 3,041 (3,041 ) Net change in other comprehensive loss from unconsolidated subsidiaries (162 ) — (162 ) 162 (162 ) Other comprehensive income 21,539 940 20,734 (21,674 ) 21,539 Total comprehensive income $ 157,817 $ 109,385 $ 68,187 $ (177,572 ) $ 157,817 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Balance Sheets (In thousands) March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 17,340 $ 28,975 $ 199,364 $ — $ 245,679 Receivables, net 843 372,264 838,681 — 1,211,788 Intercompany receivables, net 6,747 — 21,170 (27,917 ) — Inventories — 1,319,468 1,081,841 — 2,401,309 Prepaid expenses and other current assets 1,864 94,231 84,272 — 180,367 Total current assets 26,794 1,814,938 2,225,328 (27,917 ) 4,039,143 Property, plant and equipment, net 904 569,829 359,023 — 929,756 Intangible assets: Goodwill — 2,005,814 1,566,384 — 3,572,198 Other intangibles, net — 289,057 451,747 — 740,804 Investment in subsidiaries 5,355,015 105,772 — (5,460,787 ) — Intercompany notes receivable 1,143,818 32,777 — (1,176,595 ) — Equity method investments — 336 207,874 — 208,210 Other assets 79,657 36,403 30,007 — 146,067 Total assets $ 6,606,188 $ 4,854,926 $ 4,840,363 $ (6,665,299 ) $ 9,636,178 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 8,407 $ 358,971 $ 445,283 $ — $ 812,661 Intercompany payables, net — 21,170 6,747 (27,917 ) — Accrued expenses: Accrued payroll-related liabilities 5,224 34,590 72,326 — 112,140 Other accrued expenses 12,360 101,274 153,730 — 267,364 Refund liability — 54,270 44,909 — 99,179 Other current liabilities 6,224 19,255 15,688 — 41,167 Current portion of long-term obligations 20,863 1,912 119,502 — 142,277 Total current liabilities 53,078 591,442 858,185 (27,917 ) 1,474,788 Long-term obligations, excluding current portion 1,956,376 7,341 1,207,071 — 3,170,788 Intercompany notes payable — 657,601 518,994 (1,176,595 ) — Deferred income taxes 13,345 115,736 113,145 — 242,226 Other noncurrent liabilities 176,802 102,559 50,034 — 329,395 Stockholders' equity: Total Company stockholders’ equity 4,406,587 3,380,247 2,080,540 (5,460,787 ) 4,406,587 Noncontrolling interest — — 12,394 — 12,394 Total stockholders’ equity 4,406,587 3,380,247 2,092,934 (5,460,787 ) 4,418,981 Total liabilities and stockholders' equity $ 6,606,188 $ 4,854,926 $ 4,840,363 $ (6,665,299 ) $ 9,636,178 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Balance Sheets (In thousands) December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 34,360 $ 35,131 $ 210,275 $ — $ 279,766 Receivables, net — 290,958 736,148 — 1,027,106 Intercompany receivables, net 2,669 3,010 230 (5,909 ) — Inventories — 1,334,766 1,046,017 — 2,380,783 Prepaid expenses and other current assets 34,136 44,849 55,494 — 134,479 Total current assets 71,165 1,708,714 2,048,164 (5,909 ) 3,822,134 Property, plant and equipment, net 910 563,262 348,917 — 913,089 Intangible assets: Goodwill — 2,010,209 1,526,302 — 3,536,511 Other intangibles, net — 291,036 452,733 — 743,769 Investment in subsidiaries 5,952,687 102,931 — (6,055,618 ) — Intercompany notes receivable 1,156,550 782,638 — (1,939,188 ) — Equity method investments — 336 208,068 — 208,404 Other assets 70,590 33,597 38,778 — 142,965 Total assets $ 7,251,902 $ 5,492,723 $ 4,622,962 $ (8,000,715 ) $ 9,366,872 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 5,742 $ 340,951 $ 441,920 $ — $ 788,613 Intercompany payables, net — 230 5,679 (5,909 ) — Accrued expenses: Accrued payroll-related liabilities 9,448 65,811 68,165 — 143,424 Other accrued expenses 5,219 95,900 117,481 — 218,600 Other current liabilities 282 27,066 18,379 — 45,727 Current portion of long-term obligations 16,468 1,912 107,980 — 126,360 Total current liabilities 37,159 531,870 759,604 (5,909 ) 1,322,724 Long-term obligations, excluding current portion 2,095,826 7,372 1,174,422 — 3,277,620 Intercompany notes payable 750,000 677,708 511,480 (1,939,188 ) — Deferred income taxes 12,402 116,021 123,936 — 252,359 Other noncurrent liabilities 158,346 101,189 47,981 — 307,516 Stockholders' equity: Total Company stockholders’ equity 4,198,169 4,058,563 1,997,055 (6,055,618 ) 4,198,169 Noncontrolling interest — — 8,484 — 8,484 Total stockholders’ equity 4,198,169 4,058,563 2,005,539 (6,055,618 ) 4,206,653 Total liabilities and stockholders' equity $ 7,251,902 $ 5,492,723 $ 4,622,962 $ (8,000,715 ) $ 9,366,872 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Cash Flows (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 95,942 $ 96,517 $ 243 $ (47,539 ) $ 145,163 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (163 ) (29,908 ) (32,118 ) — (62,189 ) Investment and intercompany note activity with subsidiaries 24,333 — — (24,333 ) — Acquisitions, net of cash acquired — (2,966 ) — — (2,966 ) Payments of deferred purchase price on receivables securitization — 7,456 — (7,456 ) — Other investing activities, net — (145 ) 679 — 534 Net cash provided by (used in) investing activities 24,170 (25,563 ) (31,439 ) (31,789 ) (64,621 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 2,255 — — — 2,255 Taxes paid related to net share settlements of stock-based compensation awards (3,292 ) — — — (3,292 ) Debt issuance costs (724 ) — — — (724 ) Borrowings under revolving credit facilities 161,000 — 40,669 — 201,669 Repayments under revolving credit facilities (291,966 ) — (29,559 ) — (321,525 ) Repayments under term loans (4,405 ) — — — (4,405 ) (Repayments) borrowings of other debt, net — (30 ) 4,439 — 4,409 Other financing activities, net — — 4,107 — 4,107 Investment and intercompany note activity with parent — (21,759 ) (2,574 ) 24,333 — Dividends — (54,995 ) — 54,995 — Net cash (used in) provided by financing activities (137,132 ) (76,784 ) 17,082 79,328 (117,506 ) Effect of exchange rate changes on cash and cash equivalents — (326 ) 3,203 — 2,877 Net decrease in cash and cash equivalents (17,020 ) (6,156 ) (10,911 ) — (34,087 ) Cash and cash equivalents, beginning of period 34,360 35,131 210,275 — 279,766 Cash and cash equivalents, end of period $ 17,340 $ 28,975 $ 199,364 $ — $ 245,679 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Cash Flows (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 118,537 $ 106,243 $ 35,789 $ (88,276 ) $ 172,293 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (18,226 ) (26,172 ) — (44,398 ) Investment and intercompany note activity with subsidiaries 249,828 — — (249,828 ) — Acquisitions, net of cash acquired — (74,937 ) (2,119 ) — (77,056 ) Proceeds from disposals of business/investment — 305,740 (4,443 ) — 301,297 Payments of deferred purchase price on receivables securitization (1) — 6,362 — (6,362 ) — Other investing activities, net — 1,008 306 — 1,314 Net cash provided by (used in) investing activities 249,828 219,947 (32,428 ) (256,190 ) 181,157 CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 2,464 — — — 2,464 Taxes paid related to net share settlements of stock-based compensation awards (3,644 ) — — — (3,644 ) Borrowings under revolving credit facilities 10,000 — 35,239 — 45,239 Repayments under revolving credit facilities (376,966 ) — (12,347 ) — (389,313 ) Repayments under term loans (9,295 ) — — — (9,295 ) Repayments under receivables securitization facility — — (150 ) — (150 ) (Repayments) borrowings of other debt, net (1,698 ) (1,099 ) 26,110 — 23,313 Other financing activities, net — 5,000 — — 5,000 Investment and intercompany note activity with parent — (246,463 ) (3,365 ) 249,828 — Dividends — (94,638 ) — 94,638 — Net cash (used in) provided by financing activities (379,139 ) (337,200 ) 45,487 344,466 (326,386 ) Effect of exchange rate changes on cash and cash equivalents — 30 3,004 — 3,034 Net (decrease) increase in cash and cash equivalents (10,774 ) (10,980 ) 51,852 — 30,098 Cash and cash equivalents of continuing operations, beginning of period 33,030 35,360 159,010 — 227,400 Add: Cash and cash equivalents of discontinued operations, beginning of period — 149 6,967 — 7,116 Cash and cash equivalents of continuing and discontinued operations, beginning of period 33,030 35,509 165,977 — 234,516 Cash and cash equivalents, end of period $ 22,256 $ 24,529 $ 217,829 $ — $ 264,614 (1) Reflects the impact of adopting ASU 2016-15

Summary of Significant Accoun24

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Receivables and Allowance for Doubtful Accounts	Allowance for Doubtful Accounts We have a reserve for uncollectible accounts, which was approximately $63 million and $58 million at March 31, 2018 and December 31, 2017 , respectively.
Inventory	Inventories Inventories consist of the following (in thousands): March 31, December 31, 2018 2017 Aftermarket and refurbished products $ 1,915,537 $ 1,877,653 Salvage and remanufactured products 469,648 487,108 Manufactured products 16,124 16,022 Total inventories $ 2,401,309 $ 2,380,783 Aftermarket and refurbished products and salvage and remanufactured products are primarily composed of finished goods. As of March 31, 2018 , manufactured products inventory was composed of $9 million of raw materials, $2 million of work in process, and $5 million of finished goods. As of December 31, 2017, manufactured products inventory was composed of $10 million of raw materials, $2 million of work in process, and $4 million of finished goods.
Property and Equipment	Property, Plant and Equipment We record depreciation expense associated with our refurbishing, remanufacturing, manufacturing and furnace operations as well as our distribution centers in Cost of goods sold on the Unaudited Condensed Consolidated Statements of Income. All other depreciation expense is reported in Depreciation and amortization. Total depreciation expense for the three months ended March 31, 2018 and 2017 was $37 million and $27 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. The changes in the carrying amount of goodwill by reportable segment for the three months ended March 31, 2018 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 584 259 (4,977 ) (4,134 ) Exchange rate effects (2,891 ) 42,510 202 39,821 Balance as of March 31, 2018 $ 1,707,047 $ 1,457,667 $ 407,484 $ 3,572,198 The components of other intangibles, net are as follows (in thousands): March 31, 2018 December 31, 2017 Intangible assets subject to amortization $ 658,704 $ 664,969 Indefinite-lived intangible assets Trademarks 81,300 78,800 Other indefinite-lived intangible assets 800 — Total $ 740,804 $ 743,769 The components of intangible assets subject to amortization are as follows (in thousands): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 333,802 $ (79,437 ) $ 254,365 $ 327,332 $ (75,095 ) $ 252,237 Customer and supplier relationships 520,386 (185,417 ) 334,969 510,113 (167,532 ) 342,581 Software and other technology related assets 129,851 (65,070 ) 64,781 124,049 (59,081 ) 64,968 Covenants not to compete 13,920 (9,331 ) 4,589 14,981 (9,798 ) 5,183 Total $ 997,959 $ (339,255 ) $ 658,704 $ 976,475 $ (311,506 ) $ 664,969 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 6-20 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 $24 million and $23 million during the three months ended March 31, 2018 and 2017 , respectively. Estimated amortization expense for each of the five years in the period ending December 31, 2022 is $75 million (for the remaining nine months of 2018), $85 million , $72 million , $60 million and $51 million , respectively.
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 it. We record the warranty costs in Cost of goods sold on our Unaudited Condensed 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 Unaudited Condensed 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 December 31, 2017 $ 23,151 Warranty expense 10,000 Warranty claims (9,294 ) Balance as of March 31, 2018 $ 23,857
Investment in Unconsolidated Subsidiary	Investments in Unconsolidated Subsidiaries Our investment in unconsolidated subsidiaries was $208 million at both March 31, 2018 and December 31, 2017. On December 1, 2016, we acquired a 26.5% equity interest in Mekonomen AB ("Mekonomen") from AxMeko AB, an affiliate of Axel Johnson AB, for an aggregate purchase price of $181 million . Headquartered in Stockholm, Sweden, Mekonomen is the leading independent car parts and service chain in the Nordic region of Europe, offering a range of products including spare parts and accessories for cars, and workshop services for consumers and businesses. 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 March 31, 2018 , the book value of our investment in Mekonomen exceeded our share of the book value of Mekonomen's net assets by $125 million ; this difference is primarily related to goodwill and the fair value of other intangible assets. We are recording our equity in the net earnings of Mekonomen on a one quarter lag. For the three months ended March 31, 2018 and 2017 , we recorded equity in earnings totaling $2 million and $0.3 million , respectively, related to our investment in Mekonomen, which represents our share of the results for the three months ended December 31, 2017 and 2016, respectively, including adjustments to convert the results to GAAP and to recognize the impact of our purchase accounting adjustments. In May 2017, we received a cash dividend of $7 million (SEK 67 million ) related to our investment in Mekonomen. The Level 1 fair value of our equity investment in the publicly traded Mekonomen common stock at March 31, 2018 was $163 million compared to a carrying value of $202 million . We evaluated our investment in Mekonomen for other-than-temporary impairment and concluded the decline in fair value was not other-than-temporary.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adoption of New Revenue Standard In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 2014-09, "Revenue from Contracts with Customers" ("ASU 2014-09"). This update outlines a new comprehensive revenue recognition model that supersedes most current revenue recognition guidance and requires companies to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB has issued several updates to ASU 2014-09, which collectively with ASU 2014-09, represent the FASB Accounting Standards Codification Topic 606 (“ASC 606”). On January 1, 2018, we adopted ASC 606 for all contracts using the modified retrospective method, which means the historical periods are presented under the previous revenue standards with the cumulative net income effect being adjusted through retained earnings. Most of the changes resulting from our adoption of ASC 606 were changes in presentation within the Unaudited Condensed Consolidated Balance Sheets and the Unaudited Condensed Consolidated Statements of Income. Therefore, while we made adjustments to certain opening balances on our January 1, 2018 balance sheet, we made no adjustments to opening retained earnings. We expect the impact of the adoption of ASC 606 to be immaterial to our net income on an ongoing basis. See Note 5, "Revenue Recognition" for the required disclosures under ASC 606. With the adoption of ASC 606, we reclassified certain amounts related to variable consideration. Under ASC 606, we are required to present a refund liability and a returns asset within the Unaudited Condensed 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. Additionally, under ASC 606 , the changes in the refund liability are reported in revenue, and the changes in the returns assets are reported in Cost of goods sold in the Unaudited Condensed Consolidated Statements of Income. Prior to adoption, the change in the reserve for returns was generally reported as a net amount within revenue. As a result, the income statement presentation was adjusted concurrently with the balance sheet change beginning in 2018. The cumulative effect of the changes made to our consolidated January 1, 2018 balance sheet for the adoption of ASC 606 was as follows (in thousands): Balance as of December 31, 2017 Adjustments Due to ASC 606 Balance as of January 1, 2018 Balance Sheet Assets Accounts receivable $ 1,027,106 $ 38,511 $ 1,065,617 Prepaid expenses and other current assets 134,479 44,508 178,987 Liabilities Refund liability — 83,019 83,019 The impact of the adoption of ASC 606 on our Unaudited Condensed Consolidated Balance Sheet and Unaudited Condensed Consolidated Statement of Income as of and for the three months ended March 31, 2018 was as follows (in thousands): Balance as of March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Balance Sheet Assets Accounts receivable $ 1,211,788 $ 1,165,618 $ 46,170 Prepaid expenses and other current assets 180,367 127,358 53,009 Liabilities Refund liability 99,179 — 99,179 For the three months ended March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Income Statement Revenue $ 2,720,764 $ 2,728,712 $ (7,948 ) Cost of goods sold 1,666,793 1,674,173 (7,380 ) Selling, general and administrative expenses 766,891 767,459 (568 ) We have not included a table of the impact of the balance sheet adjustments on the Unaudited Condensed Consolidated Statement of Cash Flows as the adjustment will net to zero within the operating activities section of this statement. Under ASC 606, we have elected not to adjust consideration for the effect of a significant financing component at contract inception if the period between the transfer of goods to the customer and payment received from the customer is one year or less. Generally, our payment terms are short term in nature, but in some instances we may offer extended terms to customers exceeding one year such that interest would be accrued with respect to those contracts. The interest that would be accrued related to these contracts is immaterial at March 31, 2018. 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. Other Recently Adopted Accounting Pronouncements During the first quarter of 2018, we adopted ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which changes how entities will recognize, measure, present and make disclosures about certain financial assets and financial liabilities. The adoption of ASU 2016-01 did not have a significant impact on our financial position, results of operations, cash flows or disclosures. During the first quarter of 2018, we adopted ASU No. 2016-15, "Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"), which includes guidance on classification for the following items: debt prepayment or debt extinguishment costs, settlement of zero coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims and corporate-owned or bank-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions, and other separately identifiable cash flows where application of the predominance principle is prescribed. No adjustments were required in our Unaudited Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2018. Within our Unaudited Condensed Consolidating Statements of Cash Flows in Note 16, "Condensed Consolidating Financial Information ," we now present a new line item, Payments of deferred purchase price on receivables securitization, as a result of adopting ASU 2016-15; prior year cash flow information within this footnote has been recast to reflect the impact of adopting this accounting standard. Other than the addition of this new line item, there was no impact to our Unaudited Condensed Consolidating Statements of Cash Flows. During the first quarter of 2018, we adopted ASU No. 2017-01 "Clarifying the Definition of a Business" (“ASU 2017-01”), which requires an evaluation of whether substantially all of the fair value of assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transaction does not qualify as a business. The guidance also requires an acquired business to include at least one substantive process and narrows the definition of outputs. The adoption of ASU 2017-01 did not have a material impact on our unaudited condensed consolidated financial statements. 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 allows a reclassification from accumulated other comprehensive income 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"). In addition, under ASU 2018-02, an entity is required to provide certain disclosures regarding stranded tax effects. ASU 2018-02 is effective for fiscal years and interim periods beginning after December 15, 2018; early adoption is permitted. As a result of the adoption of ASU 2018-02, we recorded a $5 million reclassification to increase Accumulated Other Comprehensive (Loss) Income and decrease Retained Earnings. Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, "Leases" ("ASU 2016-02"), to increase transparency and comparability by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The main difference between current GAAP and ASU 2016-02 is the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under current GAAP. ASU 2016-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. The standard requires that entities apply the effects of these changes using a modified retrospective approach, which includes a number of optional practical expedients. While we are still in the process of quantifying the impact that the adoption of ASU 2016-02 will have on our consolidated financial statements and related disclosures, we anticipate the adoption will materially affect our consolidated balance sheet and disclosures, as the majority of our operating leases will be recorded on the balance sheet under ASU 2016-02. While we do not anticipate the adoption of this accounting standard to have a material impact on our consolidated statements of income at this time, this conclusion may change as we finalize our assessment. In order to assist in our timely implementation of the new standard, we have purchased new software to track our leases. We have engaged a third party to assist with the implementation of the new software with an expectation to complete the implementation by the end of 2018. In August 2017, the FASB issued 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. ASU 2017-12 is effective for fiscal years and interim periods beginning after December 15, 2018; early adoption is permitted. Entities will adopt the provisions of ASU 2017-12 by applying a modified retrospective approach to existing hedging relationships as of the adoption date. At this time, we are still evaluating the impact of this standard on our financial statements.

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Purchase Price Allocations For Acquisitions	The purchase price allocations for the acquisitions completed during the year ended December 31, 2017 are as follows (in thousands): Year Ended December, 31, 2017 All (1) Receivables $ 73,782 Receivable reserves (7,032 ) Inventories (2) 150,342 Prepaid expenses and other current assets (295 ) Property , plant and equipment 41,039 Goodwill 314,817 Other intangibles 181,216 Other assets 3,257 Deferred income taxes (65,087 ) Current liabilities assumed (111,484 ) Debt assumed (33,586 ) Other noncurrent liabilities assumed (1,917 ) Contingent consideration liabilities (6,234 ) Other purchase price obligations (5,074 ) Notes issued (20,187 ) Settlement of pre-existing balances 242 Gains on bargain purchases (3) (3,870 ) Settlement of other purchase price obligations (non-interest bearing) 3,159 Cash used in acquisitions, net of cash acquired $ 513,088
Pro Forma Effect Of Businesses Acquired	The following pro forma summary presents the effect of the businesses acquired during the three months ended March 31, 2018 as though the businesses 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 . The pro forma adjustments are based upon unaudited financial information of the acquired entities (in thousands, except per share data): Three Months Ended March 31, 2018 2017 Revenue, as reported $ 2,720,764 $ 2,342,843 Revenue of purchased businesses for the period prior to acquisition: All acquisitions 26 139,216 Pro forma revenue $ 2,720,790 $ 2,482,059 Income from continuing operations, as reported $ 152,763 $ 140,809 Income from continuing operations of purchased businesses for the period prior to acquisition, and pro forma purchase accounting adjustments: All acquisitions 0 7,470 Acquisition related expenses, net of tax (1) 623 1,243 Pro forma income from continuing operations $ 153,386 $ 149,522 Earnings per share from continuing operations, basic - as reported $ 0.49 $ 0.46 Effect of purchased businesses for the period prior to acquisition: All acquisitions 0.00 0.02 Acquisition related expenses, net of tax (1) 0.00 0.00 Pro forma earnings per share from continuing operations, basic (2) $ 0.50 $ 0.49 Earnings per share from continuing operations, diluted - as reported $ 0.49 $ 0.45 Effect of purchased businesses for the period prior to acquisition: All acquisitions 0.00 0.02 Acquisition related expenses, net of tax (1) 0.00 0.00 Pro forma earnings per share from continuing operations, diluted (2) $ 0.49 $ 0.48

Discontinued Operations Discont

Discontinued Operations Discontinued Operations Income statement (Tables)	3 Months Ended
	Mar. 31, 2017
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 three months ended March 31, 2017, as presented in Net loss from discontinued operations on the Unaudited Condensed Consolidated Statements of Income (in thousands): Three Months Ended March 31, 2017 Revenue $ 111,130 Cost of goods sold 100,084 Selling, general and administrative expenses 8,369 Operating income 2,677 Interest and other income, net (1) 1,204 Income from discontinued operations before taxes 3,881 Provision for income taxes 3,598 Equity in loss of unconsolidated subsidiaries (534 ) Loss from discontinued operations, net of tax (251 ) Loss on sale of discontinued operations, net of tax (2) (4,280 ) Net loss from discontinued operations $ (4,531 )

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Schedule Of Inventory	Inventories consist of the following (in thousands): March 31, December 31, 2018 2017 Aftermarket and refurbished products $ 1,915,537 $ 1,877,653 Salvage and remanufactured products 469,648 487,108 Manufactured products 16,124 16,022 Total inventories $ 2,401,309 $ 2,380,783
Changes In Carrying Amount Of Goodwill	The changes in the carrying amount of goodwill by reportable segment for the three months ended March 31, 2018 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 584 259 (4,977 ) (4,134 ) Exchange rate effects (2,891 ) 42,510 202 39,821 Balance as of March 31, 2018 $ 1,707,047 $ 1,457,667 $ 407,484 $ 3,572,198
Schedule of Finite-Lived and Indefinite-Lived Intangibles [Table Text Block]	The components of other intangibles, net are as follows (in thousands): March 31, 2018 December 31, 2017 Intangible assets subject to amortization $ 658,704 $ 664,969 Indefinite-lived intangible assets Trademarks 81,300 78,800 Other indefinite-lived intangible assets 800 — Total $ 740,804 $ 743,769
Cumulative Impact of ASC 606 on Balance Sheet as of the Beginning of Fiscal Year	The cumulative effect of the changes made to our consolidated January 1, 2018 balance sheet for the adoption of ASC 606 was as follows (in thousands): Balance as of December 31, 2017 Adjustments Due to ASC 606 Balance as of January 1, 2018 Balance Sheet Assets Accounts receivable $ 1,027,106 $ 38,511 $ 1,065,617 Prepaid expenses and other current assets 134,479 44,508 178,987 Liabilities Refund liability — 83,019 83,019
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 6-20 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): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names and trademarks $ 333,802 $ (79,437 ) $ 254,365 $ 327,332 $ (75,095 ) $ 252,237 Customer and supplier relationships 520,386 (185,417 ) 334,969 510,113 (167,532 ) 342,581 Software and other technology related assets 129,851 (65,070 ) 64,781 124,049 (59,081 ) 64,968 Covenants not to compete 13,920 (9,331 ) 4,589 14,981 (9,798 ) 5,183 Total $ 997,959 $ (339,255 ) $ 658,704 $ 976,475 $ (311,506 ) $ 664,969
Cumulative Effect of Adoption of ASC 606 on Consolidated Financial Statements	The impact of the adoption of ASC 606 on our Unaudited Condensed Consolidated Balance Sheet and Unaudited Condensed Consolidated Statement of Income as of and for the three months ended March 31, 2018 was as follows (in thousands): Balance as of March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Balance Sheet Assets Accounts receivable $ 1,211,788 $ 1,165,618 $ 46,170 Prepaid expenses and other current assets 180,367 127,358 53,009 Liabilities Refund liability 99,179 — 99,179 For the three months ended March 31, 2018 As Reported Amounts Without Adoption of ASC 606 Effect of Change Higher/(Lower) Income Statement Revenue $ 2,720,764 $ 2,728,712 $ (7,948 ) Cost of goods sold 1,666,793 1,674,173 (7,380 ) Selling, general and administrative expenses 766,891 767,459 (568 )
Changes In Warranty Reserve	The changes in the warranty reserve are as follows (in thousands): Balance as of December 31, 2017 $ 23,151 Warranty expense 10,000 Warranty claims (9,294 ) Balance as of March 31, 2018 $ 23,857

Revenue Recognition Revenue R28

Revenue Recognition Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue Recognition [Abstract]
Schedule Of Revenue By Product Category	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): Three Months Ended March 31, 2018 2017 North America $ 1,172,585 $ 1,079,875 Europe 1,037,046 819,167 Specialty 350,674 313,899 Parts and services 2,560,305 2,212,941 Other 160,459 129,902 Total revenue $ 2,720,764 $ 2,342,843
Schedule of Deferred Service-type Warranty Revenue	Our service-type warranties typically have service periods ranging from 6 to 36 months. Under 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 January 1, 2018 $ 19,465 Additional warranty revenue deferred 10,097 Warranty revenue recognized (8,055 ) Balance March 31, 2018 $ 21,507

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Nonvested Restricted Stock Units Activity	The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the three months ended March 31, 2018 : 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, 2018 1,624,390 $ 29.94 Granted 562,380 $ 43.35 Vested (359,863 ) $ 29.00 Forfeited / Canceled (18,015 ) $ 31.29 Unvested as of March 31, 2018 1,808,892 $ 34.28 Expected to vest after March 31, 2018 1,630,647 $ 34.26 3.0 $ 61,883
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 three months ended March 31, 2018 : Number Outstanding Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) (1) Balance as of January 1, 2018 1,738,073 $ 9.20 Exercised (226,260 ) $ 9.97 $ 7,123 Canceled (509 ) $ 32.31 Balance as of March 31, 2018 1,511,304 $ 9.08 1.4 $ 43,631 Exercisable as of March 31, 2018 1,511,304 $ 9.08 1.4 $ 43,631

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Computation Of Earnings Per Share	The following chart sets forth the computation of earnings per share (in thousands, except per share amounts): Three Months Ended March 31, 2018 2017 Income from continuing operations $ 152,763 $ 140,809 Denominator for basic earnings per share—Weighted-average shares outstanding 309,517 308,028 Effect of dilutive securities: RSUs 619 564 Stock options 1,211 1,708 Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding 311,347 310,300 Basic earnings per share from continuing operations $ 0.49 $ 0.46 Diluted earnings per share from continuing operations $ 0.49 $ 0.45
Schedule Of Antidilutive Securities Excluded From Computation Of Diluted Earnings Per Share	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 three months ended March 31, 2018 and 2017 (in thousands): Three Months Ended March 31, 2018 2017 Antidilutive securities: RSUs — 147 Stock options — 78

Accumulated Other Comprehensi31

Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Three Months Ended March 31, 2017 Foreign Unrealized Gain Unrealized (Loss) Gain Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income 20,068 832 836 — 21,736 Income tax effect — (356 ) (318 ) — (674 ) Reclassification of unrealized loss (gain) — 4,257 (171 ) — 4,086 Reclassification of deferred income taxes — (1,570 ) 48 — (1,522 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive (loss) income from unconsolidated subsidiaries — — — (162 ) (162 ) Ending balance $ (250,950 ) $ 11,254 $ (5,778 ) $ (162 ) $ (245,636 ) The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Three Months Ended March 31, 2018 Foreign Unrealized (Loss) Gain Unrealized (Loss) Gain on Pension Plans Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax income (loss) 48,435 (4,501 ) (629 ) — 43,305 Income tax effect 50 1,053 8 — 1,111 Reclassification of unrealized loss — 8,747 — — 8,747 Reclassification of deferred income taxes — (2,045 ) — — (2,045 ) Other comprehensive loss from unconsolidated subsidiaries — — — (605 ) (605 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Ending balance $ (20,589 ) $ 17,278 $ (9,393 ) $ (1,914 ) $ (14,618 ) Accumulated Other Comprehensive Income (Loss) The components of Accumulated Other Comprehensive Income (Loss) are as follows (in thousands): Three Months Ended March 31, 2018 Foreign Unrealized (Loss) Gain Unrealized (Loss) Gain on Pension Plans Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (71,933 ) $ 11,538 $ (8,772 ) $ (1,309 ) $ (70,476 ) Pretax income (loss) 48,435 (4,501 ) (629 ) — 43,305 Income tax effect 50 1,053 8 — 1,111 Reclassification of unrealized loss — 8,747 — — 8,747 Reclassification of deferred income taxes — (2,045 ) — — (2,045 ) Other comprehensive loss from unconsolidated subsidiaries — — — (605 ) (605 ) Adoption of ASU 2018-02 2,859 2,486 — — 5,345 Ending balance $ (20,589 ) $ 17,278 $ (9,393 ) $ (1,914 ) $ (14,618 ) Three Months Ended March 31, 2017 Foreign Unrealized Gain Unrealized (Loss) Gain Other Comprehensive Loss from Unconsolidated Subsidiaries Accumulated Beginning balance $ (272,529 ) $ 8,091 $ (2,737 ) $ — $ (267,175 ) Pretax income 20,068 832 836 — 21,736 Income tax effect — (356 ) (318 ) — (674 ) Reclassification of unrealized loss (gain) — 4,257 (171 ) — 4,086 Reclassification of deferred income taxes — (1,570 ) 48 — (1,522 ) Disposal of business, net 1,511 — (3,436 ) — (1,925 ) Other comprehensive (loss) income from unconsolidated subsidiaries — — — (162 ) (162 ) Ending balance $ (250,950 ) $ 11,254 $ (5,778 ) $ (162 ) $ (245,636 ) Net unrealized gains on our interest rate swaps totaling $2 million and net unrealized losses of $1 million were reclassified to Interest expense, net in our Unaudited Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, respectively. We also reclassified gains of $1 million and $2 million to Interest expense, net related to our cross currency swaps during the three months ended March 31, 2018 and 2017, respectively. Also related to our cross currency swaps, we reclassified losses of $12 million and $5 million to Other income, net in our Unaudited Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, respectively; these gains and losses offset the impact of the remeasurement of the underlying contracts. The deferred income taxes related to our cash flow hedges were reclassified from Accumulated other comprehensive income (loss) to provision for income taxes. As a result of the adoption of ASU 2018-02 in the first quarter of 2018, we recorded a $5 million reclassification to increase Accumulated Other Comprehensive (Loss) Income and decrease Retained Earnings. See Note 4, "Financial Statement Information " for further information regarding the adoption of ASU 2018-02.

Long-Term Obligations (Tables)

Long-Term Obligations (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Schedule Of Long-Term Obligations	Long-term obligations consist of the following (in thousands): March 31, December 31, 2018 2017 Senior secured credit agreement: Term loans payable $ 700,395 $ 704,800 Revolving credit facilities 1,172,140 1,283,551 U.S. Notes (2023) 600,000 600,000 Euro Notes (2024) 616,200 600,150 Receivables securitization facility 100,000 100,000 Notes payable through October 2025 at weighted average interest rates of 1.4% and 1.4%, respectively 29,413 29,146 Other long-term debt at weighted average interest rates of 1.9% and 1.7%, respectively 120,940 110,633 Total debt 3,339,088 3,428,280 Less: long-term debt issuance costs (23,157 ) (21,476 ) Less: current debt issuance costs (2,866 ) (2,824 ) Total debt, net of debt issuance costs 3,313,065 3,403,980 Less: current maturities, net of debt issuance costs (142,277 ) (126,360 ) Long term debt, net of debt issuance costs $ 3,170,788 $ 3,277,620

Derivative Instruments and He33

Derivative Instruments and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Cash Flow Hedges	The following table summarizes the notional amounts and fair values of our designated cash flow hedges as of March 31, 2018 and December 31, 2017 (in thousands): Notional Amount Fair Value at March 31, 2018 (USD) Fair Value at December 31, 2017 (USD) March 31, 2018 December 31, 2017 Other Assets Other Noncurrent Liabilities Other Assets Other Noncurrent Liabilities Interest rate swap agreements USD denominated $ 590,000 $ 590,000 $ 24,253 $ — $ 19,102 $ — Cross currency swap agreements USD/euro $ 402,580 $ 406,546 9,208 77,812 5,504 61,492 Total cash flow hedges $ 33,461 $ 77,812 $ 24,606 $ 61,492

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis	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 March 31, 2018 and December 31, 2017 (in thousands): Balance as of March 31, 2018 Fair Value Measurements as of March 31, 2018 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 46,196 $ — $ 46,196 $ — Interest rate swaps 24,253 — 24,253 — Cross currency swap agreements 9,208 — 9,208 — Total Assets $ 79,657 $ — $ 79,657 $ — Liabilities: Contingent consideration liabilities $ 2,700 $ — $ — $ 2,700 Deferred compensation liabilities 50,676 — 50,676 — Cross currency swap agreements 77,812 — 77,812 — Total Liabilities $ 131,188 $ — $ 128,488 $ 2,700 Balance as of December 31, 2017 Fair Value Measurements as of December 31, 2017 Level 1 Level 2 Level 3 Assets: Cash surrender value of life insurance $ 45,984 $ — $ 45,984 $ — Interest rate swaps 19,102 — 19,102 — Cross currency swap agreements 5,504 — 5,504 — Total Assets $ 70,590 $ — $ 70,590 $ — Liabilities: Contingent consideration liabilities $ 2,636 $ — $ — $ 2,636 Deferred compensation liabilities 47,199 — 47,199 — Cross currency swap agreements 61,492 — 61,492 — Total Liabilities $ 111,327 $ — $ 108,691 $ 2,636

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Lease Commitments	The future minimum lease commitments under these leases at March 31, 2018 are as follows (in thousands): Nine months ending December 31, 2018 $ 186,038 Years ending December 31: 2019 207,724 2020 171,530 2021 132,755 2022 107,405 2023 91,007 Thereafter 532,760 Future Minimum Lease Payments $ 1,429,219

Segment and Geographic Inform36

Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2018
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 Three Months Ended March 31, 2018 Revenue: Third Party $ 1,329,660 $ 1,040,430 $ 350,674 $ — $ 2,720,764 Intersegment 183 — 1,118 (1,301 ) — Total segment revenue $ 1,329,843 $ 1,040,430 $ 351,792 $ (1,301 ) $ 2,720,764 Segment EBITDA $ 177,713 $ 75,534 $ 41,969 $ — $ 295,216 Depreciation and amortization (1) 21,228 32,757 7,081 — 61,066 Three Months Ended March 31, 2017 Revenue: Third Party $ 1,208,047 $ 820,897 $ 313,899 $ — $ 2,342,843 Intersegment 193 — 1,035 (1,228 ) — Total segment revenue $ 1,208,240 $ 820,897 $ 314,934 $ (1,228 ) $ 2,342,843 Segment EBITDA $ 176,135 $ 78,694 $ 35,441 $ — $ 290,270 Depreciation and amortization (1) 20,378 24,751 5,475 — 50,604
Reconciliation Of Segment EBITDA To Net Income Table	The table below provides a reconciliation of Net Income to Segment EBITDA (in thousands): Three Months Ended March 31, 2018 2017 Net income $ 152,763 $ 136,278 Less: net loss attributable to noncontrolling interest (197 ) — Net income attributable to LKQ stockholders 152,960 136,278 Subtract: Net loss from discontinued operations — (4,531 ) Net income from continuing operations attributable to LKQ stockholders 152,960 140,809 Add: Depreciation and amortization 56,458 48,656 Depreciation and amortization - cost of goods sold 4,608 1,948 Interest expense, net 28,515 23,988 Provision for income taxes 49,584 72,155 EBITDA 292,125 287,556 Subtract: Equity in earnings of unconsolidated subsidiaries 1,412 214 Add: Restructuring and acquisition related expenses (1) 4,054 2,928 Inventory step-up adjustment - acquisition related 403 — Change in fair value of contingent consideration liabilities 46 — Segment EBITDA $ 295,216 $ 290,270
Schedule Of Capital Expenditures By Reportable Segment	The following table presents capital expenditures by reportable segment (in thousands): Three Months Ended March 31, 2018 2017 Capital Expenditures North America $ 29,662 $ 16,760 Europe 28,815 20,458 Specialty 3,712 3,582 Discontinued operations — 3,598 Total capital expenditures $ 62,189 $ 44,398
Schedule Of Assets By Reportable Segment	The following table presents assets by reportable segment (in thousands): March 31, December 31, 2018 2017 Receivables, net North America $ 448,973 $ 379,666 Europe 622,592 555,372 Specialty 140,223 92,068 Total receivables, net (1) 1,211,788 1,027,106 Inventories North America 1,053,322 1,076,393 Europe 998,617 964,068 Specialty 349,370 340,322 Total inventories 2,401,309 2,380,783 Property, Plant and Equipment, net North America 542,453 537,286 Europe 304,048 293,539 Specialty 83,255 82,264 Total property, plant and equipment, net 929,756 913,089 Equity Method Investments North America 336 336 Europe 207,874 208,068 Total equity method investments 208,210 208,404 Other unallocated assets 4,885,115 4,837,490 Total assets $ 9,636,178 $ 9,366,872
Revenue from External Customers by Geographic Area	The following table sets forth our revenue by geographic area (in thousands): Three Months Ended March 31, 2018 2017 Revenue United States $ 1,560,027 $ 1,417,040 United Kingdom 430,992 382,652 Other countries 729,745 543,151 Total revenue $ 2,720,764 $ 2,342,843
Schedule Of Tangible Long-Lived Assets By Geographic Area	The following table sets forth our tangible long-lived assets by geographic area (in thousands): March 31, December 31, 2018 2017 Long-lived Assets United States $ 589,848 $ 583,236 United Kingdom 186,347 178,021 Other countries 153,561 151,832 Total long-lived assets $ 929,756 $ 913,089

Condensed Consolidating Finan37

Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Consolidating Financial Information [Abstract]
Consolidated Condensed Statements of Income	LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Income (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 1,577,595 $ 1,180,242 $ (37,073 ) $ 2,720,764 Cost of goods sold — 945,915 757,951 (37,073 ) 1,666,793 Gross margin — 631,680 422,291 — 1,053,971 Selling, general and administrative expenses 9,130 426,797 330,964 — 766,891 Restructuring and acquisition related expenses — 330 3,724 — 4,054 Depreciation and amortization 29 24,338 32,091 — 56,458 Operating (loss) income (9,159 ) 180,215 55,512 — 226,568 Other expense (income): Interest expense, net 18,008 212 10,295 — 28,515 Intercompany interest (income) expense, net (15,400 ) 9,680 5,720 — — Other (income) expense, net (1,015 ) (5,882 ) 4,015 — (2,882 ) Total other expense, net 1,593 4,010 20,030 — 25,633 (Loss) income before (benefit) provision for income taxes (10,752 ) 176,205 35,482 — 200,935 (Benefit) provision for income taxes (3,904 ) 45,877 7,611 — 49,584 Equity in earnings of unconsolidated subsidiaries — — 1,412 — 1,412 Equity in earnings (loss) of subsidiaries 159,808 5,110 — (164,918 ) — Net income 152,960 135,438 29,283 (164,918 ) 152,763 Less: net loss attributable to noncontrolling interest — — (197 ) — (197 ) Net income attributable to LKQ stockholders $ 152,960 $ 135,438 $ 29,480 $ (164,918 ) $ 152,960 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Income (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Revenue $ — $ 1,453,516 $ 929,971 $ (40,644 ) $ 2,342,843 Cost of goods sold — 863,375 590,019 (40,644 ) 1,412,750 Gross margin — 590,141 339,952 — 930,093 Selling, general and administrative expenses 9,183 385,528 248,106 — 642,817 Restructuring and acquisition related expenses — 1,883 1,045 — 2,928 Depreciation and amortization 30 23,481 25,145 — 48,656 Operating (loss) income (9,213 ) 179,249 65,656 — 235,692 Other expense (income): Interest expense, net 16,180 198 7,610 — 23,988 Intercompany interest (income) expense, net (5,672 ) 1,019 4,653 — — Other expense (income), net 291 (169 ) (1,168 ) — (1,046 ) Total other expense, net 10,799 1,048 11,095 — 22,942 (Loss) income from continuing operations before (benefit) provision for income taxes (20,012 ) 178,201 54,561 — 212,750 (Benefit) provision for income taxes (7,437 ) 70,038 9,554 — 72,155 Equity in (loss) earnings of unconsolidated subsidiaries (182 ) — 396 — 214 Equity in earnings of subsidiaries 153,566 4,813 — (158,379 ) — Income from continuing operations 140,809 112,976 45,403 (158,379 ) 140,809 Net (loss) income from discontinued operations (4,531 ) (4,531 ) 2,050 2,481 (4,531 ) Net income $ 136,278 $ 108,445 $ 47,453 $ (155,898 ) $ 136,278
Consolidated Condensed Statements of Comprehensive Income (Loss)	LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Comprehensive Income (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 152,960 $ 135,438 $ 29,283 $ (164,918 ) $ 152,763 Less: net loss attributable to noncontrolling interest — — (197 ) — (197 ) Net income attributable to LKQ stockholders 152,960 135,438 29,480 (164,918 ) 152,960 Other comprehensive income (loss): Foreign currency translation, net of tax 48,485 (2,183 ) 49,055 (46,872 ) 48,485 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,254 — — — 3,254 Net change in unrealized gains/losses on pension plans, net of tax (621 ) (621 ) — 621 (621 ) Net change in other comprehensive loss from unconsolidated subsidiaries (605 ) — (605 ) 605 (605 ) Other comprehensive income (loss) 50,513 (2,804 ) 48,450 (45,646 ) 50,513 Comprehensive income 203,473 132,634 77,733 (210,564 ) 203,276 Less: comprehensive loss attributable to noncontrolling interest — — (197 ) — (197 ) Comprehensive income attributable to LKQ stockholders $ 203,473 $ 132,634 $ 77,930 $ (210,564 ) $ 203,473 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Comprehensive Income (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Net income $ 136,278 $ 108,445 $ 47,453 $ (155,898 ) $ 136,278 Other comprehensive income (loss): Foreign currency translation, net of tax 21,579 3,878 21,132 (25,010 ) 21,579 Net change in unrealized gains/losses on cash flow hedges, net of tax 3,163 (133 ) — 133 3,163 Net change in unrealized gains/losses on pension plans, net of tax (3,041 ) (2,805 ) (236 ) 3,041 (3,041 ) Net change in other comprehensive loss from unconsolidated subsidiaries (162 ) — (162 ) 162 (162 ) Other comprehensive income 21,539 940 20,734 (21,674 ) 21,539 Total comprehensive income $ 157,817 $ 109,385 $ 68,187 $ (177,572 ) $ 157,817
Consolidated Condensed Balance Sheets	LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Balance Sheets (In thousands) March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 17,340 $ 28,975 $ 199,364 $ — $ 245,679 Receivables, net 843 372,264 838,681 — 1,211,788 Intercompany receivables, net 6,747 — 21,170 (27,917 ) — Inventories — 1,319,468 1,081,841 — 2,401,309 Prepaid expenses and other current assets 1,864 94,231 84,272 — 180,367 Total current assets 26,794 1,814,938 2,225,328 (27,917 ) 4,039,143 Property, plant and equipment, net 904 569,829 359,023 — 929,756 Intangible assets: Goodwill — 2,005,814 1,566,384 — 3,572,198 Other intangibles, net — 289,057 451,747 — 740,804 Investment in subsidiaries 5,355,015 105,772 — (5,460,787 ) — Intercompany notes receivable 1,143,818 32,777 — (1,176,595 ) — Equity method investments — 336 207,874 — 208,210 Other assets 79,657 36,403 30,007 — 146,067 Total assets $ 6,606,188 $ 4,854,926 $ 4,840,363 $ (6,665,299 ) $ 9,636,178 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 8,407 $ 358,971 $ 445,283 $ — $ 812,661 Intercompany payables, net — 21,170 6,747 (27,917 ) — Accrued expenses: Accrued payroll-related liabilities 5,224 34,590 72,326 — 112,140 Other accrued expenses 12,360 101,274 153,730 — 267,364 Refund liability — 54,270 44,909 — 99,179 Other current liabilities 6,224 19,255 15,688 — 41,167 Current portion of long-term obligations 20,863 1,912 119,502 — 142,277 Total current liabilities 53,078 591,442 858,185 (27,917 ) 1,474,788 Long-term obligations, excluding current portion 1,956,376 7,341 1,207,071 — 3,170,788 Intercompany notes payable — 657,601 518,994 (1,176,595 ) — Deferred income taxes 13,345 115,736 113,145 — 242,226 Other noncurrent liabilities 176,802 102,559 50,034 — 329,395 Stockholders' equity: Total Company stockholders’ equity 4,406,587 3,380,247 2,080,540 (5,460,787 ) 4,406,587 Noncontrolling interest — — 12,394 — 12,394 Total stockholders’ equity 4,406,587 3,380,247 2,092,934 (5,460,787 ) 4,418,981 Total liabilities and stockholders' equity $ 6,606,188 $ 4,854,926 $ 4,840,363 $ (6,665,299 ) $ 9,636,178 LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Balance Sheets (In thousands) December 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 34,360 $ 35,131 $ 210,275 $ — $ 279,766 Receivables, net — 290,958 736,148 — 1,027,106 Intercompany receivables, net 2,669 3,010 230 (5,909 ) — Inventories — 1,334,766 1,046,017 — 2,380,783 Prepaid expenses and other current assets 34,136 44,849 55,494 — 134,479 Total current assets 71,165 1,708,714 2,048,164 (5,909 ) 3,822,134 Property, plant and equipment, net 910 563,262 348,917 — 913,089 Intangible assets: Goodwill — 2,010,209 1,526,302 — 3,536,511 Other intangibles, net — 291,036 452,733 — 743,769 Investment in subsidiaries 5,952,687 102,931 — (6,055,618 ) — Intercompany notes receivable 1,156,550 782,638 — (1,939,188 ) — Equity method investments — 336 208,068 — 208,404 Other assets 70,590 33,597 38,778 — 142,965 Total assets $ 7,251,902 $ 5,492,723 $ 4,622,962 $ (8,000,715 ) $ 9,366,872 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $ 5,742 $ 340,951 $ 441,920 $ — $ 788,613 Intercompany payables, net — 230 5,679 (5,909 ) — Accrued expenses: Accrued payroll-related liabilities 9,448 65,811 68,165 — 143,424 Other accrued expenses 5,219 95,900 117,481 — 218,600 Other current liabilities 282 27,066 18,379 — 45,727 Current portion of long-term obligations 16,468 1,912 107,980 — 126,360 Total current liabilities 37,159 531,870 759,604 (5,909 ) 1,322,724 Long-term obligations, excluding current portion 2,095,826 7,372 1,174,422 — 3,277,620 Intercompany notes payable 750,000 677,708 511,480 (1,939,188 ) — Deferred income taxes 12,402 116,021 123,936 — 252,359 Other noncurrent liabilities 158,346 101,189 47,981 — 307,516 Stockholders' equity: Total Company stockholders’ equity 4,198,169 4,058,563 1,997,055 (6,055,618 ) 4,198,169 Noncontrolling interest — — 8,484 — 8,484 Total stockholders’ equity 4,198,169 4,058,563 2,005,539 (6,055,618 ) 4,206,653 Total liabilities and stockholders' equity $ 7,251,902 $ 5,492,723 $ 4,622,962 $ (8,000,715 ) $ 9,366,872
Consolidated Condensed Statements of Cash Flows	LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Cash Flows (In thousands) For the Three Months Ended March 31, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 95,942 $ 96,517 $ 243 $ (47,539 ) $ 145,163 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment (163 ) (29,908 ) (32,118 ) — (62,189 ) Investment and intercompany note activity with subsidiaries 24,333 — — (24,333 ) — Acquisitions, net of cash acquired — (2,966 ) — — (2,966 ) Payments of deferred purchase price on receivables securitization — 7,456 — (7,456 ) — Other investing activities, net — (145 ) 679 — 534 Net cash provided by (used in) investing activities 24,170 (25,563 ) (31,439 ) (31,789 ) (64,621 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 2,255 — — — 2,255 Taxes paid related to net share settlements of stock-based compensation awards (3,292 ) — — — (3,292 ) Debt issuance costs (724 ) — — — (724 ) Borrowings under revolving credit facilities 161,000 — 40,669 — 201,669 Repayments under revolving credit facilities (291,966 ) — (29,559 ) — (321,525 ) Repayments under term loans (4,405 ) — — — (4,405 ) (Repayments) borrowings of other debt, net — (30 ) 4,439 — 4,409 Other financing activities, net — — 4,107 — 4,107 Investment and intercompany note activity with parent — (21,759 ) (2,574 ) 24,333 — Dividends — (54,995 ) — 54,995 — Net cash (used in) provided by financing activities (137,132 ) (76,784 ) 17,082 79,328 (117,506 ) Effect of exchange rate changes on cash and cash equivalents — (326 ) 3,203 — 2,877 Net decrease in cash and cash equivalents (17,020 ) (6,156 ) (10,911 ) — (34,087 ) Cash and cash equivalents, beginning of period 34,360 35,131 210,275 — 279,766 Cash and cash equivalents, end of period $ 17,340 $ 28,975 $ 199,364 $ — $ 245,679	LKQ CORPORATION AND SUBSIDIARIES Unaudited Condensed Consolidating Statements of Cash Flows (In thousands) For the Three Months Ended March 31, 2017 Parent Guarantors Non-Guarantors Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Net cash provided by operating activities $ 118,537 $ 106,243 $ 35,789 $ (88,276 ) $ 172,293 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (18,226 ) (26,172 ) — (44,398 ) Investment and intercompany note activity with subsidiaries 249,828 — — (249,828 ) — Acquisitions, net of cash acquired — (74,937 ) (2,119 ) — (77,056 ) Proceeds from disposals of business/investment — 305,740 (4,443 ) — 301,297 Payments of deferred purchase price on receivables securitization (1) — 6,362 — (6,362 ) — Other investing activities, net — 1,008 306 — 1,314 Net cash provided by (used in) investing activities 249,828 219,947 (32,428 ) (256,190 ) 181,157 CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 2,464 — — — 2,464 Taxes paid related to net share settlements of stock-based compensation awards (3,644 ) — — — (3,644 ) Borrowings under revolving credit facilities 10,000 — 35,239 — 45,239 Repayments under revolving credit facilities (376,966 ) — (12,347 ) — (389,313 ) Repayments under term loans (9,295 ) — — — (9,295 ) Repayments under receivables securitization facility — — (150 ) — (150 ) (Repayments) borrowings of other debt, net (1,698 ) (1,099 ) 26,110 — 23,313 Other financing activities, net — 5,000 — — 5,000 Investment and intercompany note activity with parent — (246,463 ) (3,365 ) 249,828 — Dividends — (94,638 ) — 94,638 — Net cash (used in) provided by financing activities (379,139 ) (337,200 ) 45,487 344,466 (326,386 ) Effect of exchange rate changes on cash and cash equivalents — 30 3,004 — 3,034 Net (decrease) increase in cash and cash equivalents (10,774 ) (10,980 ) 51,852 — 30,098 Cash and cash equivalents of continuing operations, beginning of period 33,030 35,360 159,010 — 227,400 Add: Cash and cash equivalents of discontinued operations, beginning of period — 149 6,967 — 7,116 Cash and cash equivalents of continuing and discontinued operations, beginning of period 33,030 35,509 165,977 — 234,516 Cash and cash equivalents, end of period $ 22,256 $ 24,529 $ 217,829 $ — $ 264,614 (1) Reflects the impact of adopting ASU 2016-15

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands, € in Billions	3 Months Ended		12 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Apr. 09, 2018EUR (€)	Dec. 10, 2017EUR (€)shares
Business Acquisition
Income from continuing operations		$ 140,809
Number of acquisitions			26
Cash used in acquisitions, net of cash acquired	$ 2,966	77,056
Goodwill	3,572,198		$ 3,536,511
Pending Acquisition, Enterprise Value | €					€ 1.5
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares					8,055,569
Restructuring and acquisition related expenses	$ 4,054	2,928
Disposal Group, Including Discontinued Operation, Revenue		111,130
Disposal Groups, including Discontinued Operations, Operating income		$ 2,677
Wholesale Distribution Businesses in North America [Member]
Business Acquisition
Number of acquisitions	1
Europe
Business Acquisition
Number of acquisitions			16
Goodwill	$ 1,457,667		$ 1,414,898
North America Segment [Member]
Business Acquisition
Number of acquisitions			6
North America
Business Acquisition
Goodwill	1,707,047		$ 1,709,354
Specialty
Business Acquisition
Number of acquisitions			4
Goodwill	$ 407,484		$ 412,259
Wholesale Distribution Businesses in Belgium [Member]
Business Acquisition
Number of acquisitions			4
All 2017 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			20,187
Goodwill			307,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount			21,000
Business Combincation, Contingent Consideration Arrangements, Maximum Potential Consideration			19,000
2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			41,039
Cash used in acquisitions, net of cash acquired			513,088
Gains on bargain purchases			(3,870)
Notes issued			20,187
Other purchase price obligations			5,074
Settlement of pre-existing balances			242
Goodwill			314,817
Debt assumed			33,586
Contingent consideration liabilities			(6,234)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets			(295)
Andrew Page
Business Acquisition
Gains on bargain purchases			(2,000)
Adjustments in 2017 [Member] | Rhiag
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			6,000
Adjustments in 2017 [Member] | PGW
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets			$ 3,000
Euro Notes 2026/28 [Member]
Business Acquisition
Debt Instrument, Face Amount | €				€ 1

Purchase Price Allocations for

Purchase Price Allocations for Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Business Acquisition
Inventory step-up adjustment - acquisition related	$ 403
Goodwill	3,572,198		$ 3,536,511
Cash used in acquisitions, net of cash acquired	$ 2,966	$ 77,056
Warn Industries [Member]
Business Acquisition
Inventory step-up adjustment - acquisition related			4,000
2017 acquisitions and adjustments to 2016 acquisitions [Member]
Business Acquisition
Receivables			73,782
Receivable reserves			(7,032)
Inventories (2)			150,342
Prepaid expenses and other current assets			(295)
Property, plant and equipment			41,039
Goodwill			314,817
Finite and Indefinite-Lived Asset, Gross			181,216
Other assets			3,257
Deferred income taxes			(65,087)
Current liabilities assumed			(111,484)
Debt assumed			(33,586)
Other noncurrent liabilities assumed			(1,917)
Contingent consideration liabilities			(6,234)
Other purchase price obligations			(5,074)
Notes issued			(20,187)
Settlement of pre-existing balances			242
Gains on bargain purchases			(3,870)
Subsequent payments on purchase price payables			3,159
Cash used in acquisitions, net of cash acquired			$ 513,088

Pro Forma Effect of Businesses

Pro Forma Effect of Businesses Acquired (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Business Acquisition
Revenue, as reported	$ 2,720,764	$ 2,342,843
Pro forma revenue	2,720,790	2,482,059
Income from continuing operations	152,763	140,809
Pro forma income from continuing operations	$ 153,386	$ 149,522
Basic earnings per share from continuing operations	$ 0.49	$ 0.46
Pro forma earnings per share from continuing operations, basic (2)	0.50	0.49
Diluted earnings per share from continuing operations	0.49	0.45
Pro forma earnings per share from continuing operations, diluted (2)	$ 0.49	$ 0.48
Restructuring and acquisition related expenses	$ 4,054	$ 2,928
All 2018 Acquisitions [Member]
Business Acquisition
Revenue of purchased businesses for the period prior to acquisition	26
Net income of purchased businesses for the period prior to acquisition, including pro forma purchase accounting adjustments	0
Acquisition Related Costs, Net of Tax	$ 623
Effect of purchased businesses for the period prior to acquisition	$ 0
Business Acquisition Pro Forma Income Loss From Acquisition Related Costs, Net of Tax, Per Basic Share Effect	0
Effect of purchased businesses for the period prior to acquisition	0
Business Acquisition Pro Forma Income Loss From Acquisition Related Costs, Net of Tax, Per Diluted Share Effect	$ 0
All 2017 acquisitions [Member]
Business Acquisition
Revenue of purchased businesses for the period prior to acquisition		139,216
Net income of purchased businesses for the period prior to acquisition, including pro forma purchase accounting adjustments		7,470
Acquisition Related Costs, Net of Tax		$ 1,243
Effect of purchased businesses for the period prior to acquisition		$ 0.02
Business Acquisition Pro Forma Income Loss From Acquisition Related Costs, Net of Tax, Per Basic Share Effect		0
Effect of purchased businesses for the period prior to acquisition		0.02
Business Acquisition Pro Forma Income Loss From Acquisition Related Costs, Net of Tax, Per Diluted Share Effect		$ 0
Acquisition related expenses
Business Acquisition
Restructuring and acquisition related expenses	$ 2,000	$ 3,000

Discontinued Operations Net ass

Discontinued Operations Net assets of discontinued operations (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 01, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of business				$ (8,580)
Proceeds from disposals of business/investment				301,297	$ 316,000
Cash disposed as part of divestment					$ 15,000
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation				(4,000)
Intercompany payable between discontinued operations and continuing operations	$ 6,000			6,000
Interest Allocated to Discontinued Operations		$ 2,000
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
Intercompany Sales between Continuing and Discontinued Operations		$ 8,000
Purchases under supply agreement	$ 4,000		$ 10,000
Payments to Acquire Productive Assets			(62,189)	(44,398)
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments to Acquire Productive Assets			$ 0	$ (3,598)

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Mar. 31, 2017	Mar. 01, 2017	Mar. 31, 2018	Mar. 31, 2017
Intercompany Sales between Continuing and Discontinued Operations		$ 8,000
Disposal Group, Including Discontinued Operation, Revenue				$ 111,130
Disposal Group, Including Discontinued Operation, Costs of Goods Sold				100,084
Disposal Group, Including Discontinued Operation, Operating Expense				8,369
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation				4,000
Disposal Groups, including Discontinued Operations, Operating income				2,677
Disposal Group, Including Discontinued Operation, Other Expense				1,204
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax				3,881
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation				3,598
disposal group, including discontinued operation, equity in earnings				(534)
IncomeLossFromDiscontinuedOperationsExcludingLossonSaleNetOfTaxAttributableToReportingEntity				(251)
Net loss from discontinued operations			$ 0	(4,531)
Interest Allocated to Discontinued Operations		$ 2,000
Capital Expenditures			62,189	44,398
Cash Provided by (Used in) Operating Activities, Discontinued Operations				(4,000)
Cash Provided by (Used in) Investing Activities, Discontinued Operations				(4,000)
Loss on sale of business				(4,280)
Purchases under supply agreement	$ 4,000		10,000
Discontinued Operations
Capital Expenditures			$ 0	$ 3,598

Summary of Significant Accoun43

Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands, kr in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017SEK (kr)	Dec. 31, 2017USD ($)	Dec. 01, 2016USD ($)
Summary of Significant Accounting Policies [Line Items]
U.S. federal statutory rate	21.00%	35.00%
Adoption of ASU 2018-02 (see Note 4)	$ 5,345
Reserve for uncollectible accounts	63,000			$ 58,000
Depreciation	37,000	$ 27,000
Amortization expense	24,000	23,000
Estimated annual amortization expense in year one	75,000
Estimated annual amortization expense in year two	85,000
Estimated annual amortization expense in year three	72,000
Estimated annual amortization expense in year four	60,000
Estimated annual amortization expense in year five	51,000
Equity method investments	208,210			208,404
Equity in earnings of unconsolidated subsidiaries	1,412	214
Raw Materials [Member]
Summary of Significant Accounting Policies [Line Items]
Manufactured Inventory	$ 9,000			10,000
Salvage Mechanical Products
Summary of Significant Accounting Policies [Line Items]
Standard warranty period	6 months
Remanufactured Engines
Summary of Significant Accounting Policies [Line Items]
Standard warranty period	3 years
Trade names and trademarks | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	4 years
Trade names and trademarks | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	30 years
Software and technology related assets | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	3 years
Software and technology related assets | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	15 years
Covenants not to compete | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	2 years
Covenants not to compete | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	5 years
Customer and supplier relationships [Member] | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	6 years
Customer and supplier relationships [Member] | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life, years	20 years
Mekonomen [Member]
Summary of Significant Accounting Policies [Line Items]
Investment in unconsolidated subsidiary, ownership percentage	26.50%
Equity method investments	$ 202,000				$ 181,000
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity	125,000
Equity in earnings of unconsolidated subsidiaries	2,000	$ 300
Equity Method Investments, Fair Value Disclosure	$ 163,000
Proceeds from Equity Method Investment, Dividends or Distributions			kr 67	$ 7,000

Financial Statement Information

Financial Statement Information Schedule of Inventory (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Product Information
Inventories	$ 2,401,309	$ 2,380,783
Aftermarket and refurbished products
Product Information
Inventories	1,915,537	1,877,653
Salvage and remanufactured products
Product Information
Inventories	469,648	487,108
ManufacturedProducts [Member]
Product Information
Inventories	16,124	16,022
Raw Materials [Member]
Product Information
Manufactured Inventory	9,000	10,000
Work In Process [Member]
Product Information
Manufactured Inventory	2,000	2,000
Finished goods Inventory [Member]
Product Information
Manufactured Inventory	$ 5,000	$ 4,000

Financial Statement Informati45

Financial Statement Information Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Property, Plant and Equipment
Property, Plant and Equipment, Net	$ 929,756		$ 913,089
Depreciation	$ 37,000	$ 27,000

Changes in Carrying Amount of G

Changes in Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 3,536,511
Business acquisitions and adjustments to previously recorded goodwill	(4,134)
Exchange rate effects	39,821
Ending balance	3,572,198
North America
Goodwill [Roll Forward]
Beginning balance	1,709,354
Business acquisitions and adjustments to previously recorded goodwill	584
Exchange rate effects	(2,891)
Ending balance	1,707,047
Europe
Goodwill [Roll Forward]
Beginning balance	1,414,898
Business acquisitions and adjustments to previously recorded goodwill	259
Exchange rate effects	42,510
Ending balance	1,457,667
Specialty
Goodwill [Roll Forward]
Beginning balance	412,259
Business acquisitions and adjustments to previously recorded goodwill	(4,977)
Exchange rate effects	202
Ending balance	$ 407,484

Components of Other Intangibles

Components of Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets
Gross carrying amount	$ 997,959	$ 976,475
Accumulated amortization	(339,255)	(311,506)
Net	658,704	664,969
Other intangibles, net	740,804	743,769
Trade names and trademarks
Finite-Lived Intangible Assets
Gross carrying amount	333,802	327,332
Accumulated amortization	(79,437)	(75,095)
Net	254,365	252,237
Customer and supplier relationships
Finite-Lived Intangible Assets
Gross carrying amount	520,386	510,113
Accumulated amortization	(185,417)	(167,532)
Net	334,969	342,581
Software and technology related assets
Finite-Lived Intangible Assets
Gross carrying amount	129,851	124,049
Accumulated amortization	(65,070)	(59,081)
Net	64,781	64,968
Covenants not to compete
Finite-Lived Intangible Assets
Gross carrying amount	13,920	14,981
Accumulated amortization	(9,331)	(9,798)
Net	$ 4,589	5,183
Maximum | Trade names and trademarks
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	30 years
Maximum | Software and technology related assets
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	15 years
Maximum | Covenants not to compete
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	5 years
Maximum | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	20 years
Minimum | Trade names and trademarks
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	4 years
Minimum | Software and technology related assets
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
Minimum | Customer and supplier relationships [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	6 years
Trademarks [Member]
Finite-Lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 81,300	78,800
Unclassified Indefinite-lived Intangible Assets [Member]
Finite-Lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 800	$ 0

Changes in Warranty Reserve (De

Changes in Warranty Reserve (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Warranty Reserve [Roll Forward]
Beginning balance	$ 23,151
Warranty expense	10,000
Warranty claims	(9,294)
Ending balance	$ 23,857

Financial Statement Informati49

Financial Statement Information Schedule of New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncement, Early Adoption [Line Items]
Receivables, Net, Current	$ 1,211,788	$ 1,065,617	$ 1,027,106
Prepaid Expense and Other Assets, Current	180,367	$ 178,987	134,479
Other assets	146,067		142,965
Other current liabilities	41,167		45,727
Deferred Income Taxes	$ (242,226)		$ (252,359)

Financial Statement Informati50

Financial Statement Information Impact to quarterly financial statements as result of adoption of ASU 2016-09 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	$ 2,720,764	$ 2,342,843
Receivables, net	1,211,788		$ 1,065,617	$ 1,027,106
Net Cash Provided by (Used in) Operating Activities	145,163	172,293
Net Cash Provided by (Used in) Financing Activities	(117,506)	(326,386)
Net income attributable to LKQ stockholders	$ 152,960	$ 136,278
Net income attributable to LKQ stockholders	$ 0.49	$ 0.44
Net income attributable to LKQ stockholders	$ 0.49	$ 0.44
Prepaid expenses and other current assets	$ 180,367		178,987	134,479
Refund liability	99,179		83,019	0
Accounts payable	812,661			788,613
Other current liabilities	41,167			$ 45,727
Cost of goods sold	1,666,793	$ 1,412,750
Selling, general and administrative expenses (1)	766,891	$ 642,817
Adjustment Due to ASC 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, net			38,511
Prepaid expenses and other current assets			44,508
Refund liability			$ 83,019
Amount of adjustment to prior balance [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	2,728,712
Receivables, net	1,165,618
Prepaid expenses and other current assets	127,358
Refund liability	0
Cost of goods sold	1,674,173
Selling, general and administrative expenses (1)	767,459
Adjustment Due to ASC 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	(7,948)
Receivables, net	46,170
Prepaid expenses and other current assets	53,009
Refund liability	99,179
Cost of goods sold	(7,380)
Selling, general and administrative expenses (1)	$ (568)

Revenue Recognition Revenue R51

Revenue Recognition Revenue Recognition (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)
Revenue Recognition [Line Items]
Revenue	$ 2,720,764	$ 2,342,843
Deferred Service-Type Warranty Revenue	22		$ 19
Deferred Revenue, Additions	10
Deferred Revenue, Revenue Recognized	(8)
Reserve for Returns, net			(38,000)
Reserve for Variable Consideration	44,000		$ 78,000
Customer Refund Liability, Current
Revenue Recognition [Line Items]
Reserve for Returns, net	99,000
Customer Returns Asset
Revenue Recognition [Line Items]
Reserve for Returns, net	$ 53,000
Maximum
Revenue Recognition [Line Items]
Service-Type Product Warranty Time Period	36
Minimum
Revenue Recognition [Line Items]
Service-Type Product Warranty Time Period	6
North America
Revenue Recognition [Line Items]
Revenue	$ 1,329,843	1,208,240
Europe
Revenue Recognition [Line Items]
Revenue	1,040,430	820,897
Specialty
Revenue Recognition [Line Items]
Revenue	351,792	314,934
Parts and Services
Revenue Recognition [Line Items]
Revenue	2,560,305	2,212,941
Parts and Services | North America
Revenue Recognition [Line Items]
Revenue	1,172,585	1,079,875
Parts and Services | Europe
Revenue Recognition [Line Items]
Revenue	1,037,046	819,167
Parts and Services | Specialty
Revenue Recognition [Line Items]
Revenue	350,674	313,899
Other Revenue
Revenue Recognition [Line Items]
Revenue	$ 160,459	$ 129,902

Schedule of Revenue by Product

Schedule of Revenue by Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting [Abstract]
Revenue	$ 2,720,764	$ 2,342,843
Parts and Services
Segment Reporting [Abstract]
Revenue	2,560,305	2,212,941
Other Revenue
Segment Reporting [Abstract]
Revenue	160,459	129,902
North America
Segment Reporting [Abstract]
Revenue	1,329,843	1,208,240
North America | Parts and Services
Segment Reporting [Abstract]
Revenue	1,172,585	1,079,875
Europe
Segment Reporting [Abstract]
Revenue	1,040,430	820,897
Europe | Parts and Services
Segment Reporting [Abstract]
Revenue	1,037,046	819,167
Specialty
Segment Reporting [Abstract]
Revenue	351,792	314,934
Specialty | Parts and Services
Segment Reporting [Abstract]
Revenue	$ 350,674	$ 313,899

Restructuring and Acquisition53

Restructuring and Acquisition Related Expenses - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring Cost and Reserve
Restructuring and acquisition related expenses	$ 4,054	$ 2,928
Acquisition related expenses
Restructuring Cost and Reserve
Restructuring and acquisition related expenses	2,000	3,000
Restructuring expenses
Restructuring Cost and Reserve
Restructuring and acquisition related expenses	2,000	1,000
Expected future restructuring expenses	15,000
Andrew Page | Acquisition related expenses
Restructuring Cost and Reserve
Restructuring and acquisition related expenses		1,000
Stahlgruber | Acquisition related expenses
Restructuring Cost and Reserve
Restructuring and acquisition related expenses	$ 1,000
Stahlgruber | All Q1 2017 acquisitions excluding Andrew Page [Member]
Restructuring Cost and Reserve
Restructuring and acquisition related expenses		$ 2,000

Equity Incentive Plans - Additi

Equity Incentive Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Stock options exercised, aggregate intrinsic value	$ 7,123
Stock-based compensation expense	$ 5,982	$ 7,285
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	5 years
RSUs granted, shares	562,380
Fair value of RSUs vested during the period	$ 15,000
Stock-based compensation expense	$ 5,982	$ 7,279
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	5 years
Minimum | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Stock options expiration period	6 years
Maximum | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Stock options expiration period	10 years

Equity Incentive Plans Schedule

Equity Incentive Plans Schedule of Unvested Restricted Stock Units Activity (Details) - RSUs - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Summary of Expected to Vest RSUs [Line Items]
Unvested RSUs, shares	1,808,892	1,624,390
RSUs granted, shares	562,380
RSUs vested, shares	(359,863)
RSUs forfeited/canceled, shares	(18,015)
RSUs expected to vest, shares	1,630,647
Unvested RSUs, weighted average grant date fair value	$ 34.28	$ 29.94
RSUs granted, weighted average grant date fair value	43.35
RSUs vested, weighted average grant date fair value	29
RSUs forfeited/canceled, weighted average grant date fair value	31.29
RSUs expected to vest, weighted average grant date fair value	$ 34.26
RSUs expected to vest, weighted average remaining contractual term	3 years
RSUs expected to vest, aggregate intrinsic value	$ 61,883

Equity Incentive Plans Schedu56

Equity Incentive Plans Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock options outstanding, shares	1,511,304	1,738,073
Stock options exercised, shares	(226,260)
Stock options forfeited/canceled, shares	(509)
Exercisable stock options, shares	1,511,304
Stock options outstanding, weighted average exercise price	$ 9.08	$ 9.20
Stock options exercised, weighted average exercise price	9.97
Stock options forfeited/canceled, weighted average exercise price	32.31
Exercisable stock options, weighted average exercise price	$ 9.08
Stock options outstanding, weighted average remaining contractual term (years)	1 year 4 months 24 days
Exercisable stock options, weighted average remaining contractual term (years)	1 year 4 months 24 days
Stock options exercised, aggregate intrinsic value	$ 7,123
Stock options outstanding, aggregate intrinsic value	43,631
Exercisable stock options, aggregate intrinsic value	$ 43,631

Schedule of Pre-Tax Stock-Based

Schedule of Pre-Tax Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 5,982	$ 7,285
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 5,982	$ 7,279

Schedule of Stock-Based Compens

Schedule of Stock-Based Compensation Expense Included in Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense, before tax	$ 5,982	$ 7,285

Schedule of Stock-Based Compe59

Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 5,982	$ 7,285
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	5,982	$ 7,279
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 51,000

Computation of Earnings Per Sha

Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Income from continuing operations	$ 152,763	$ 140,809
Denominator for basic earnings per share—Weighted-average shares outstanding	309,517	308,028
Effect of dilutive securities:
RSUs	619	564
Stock options	1,211	1,708
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding	311,347	310,300
Basic earnings per share from continuing operations	$ 0.49	$ 0.46
Diluted earnings per share from continuing operations	$ 0.49	$ 0.45

Schedule of Antidilutive Securi

Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities	0	147
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities	0	78

Accumulated Other Comprehensi62

Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Equity [Abstract]
Foreign currency translation, net of tax	$ 48,485	$ 21,579
Other comprehensive loss of unconsolidated subsidiaries	(1,914)	(162)	$ (1,309)	$ 0
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation
Balance, beginning	(71,933)	(272,529)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	48,435	20,068
Income tax effect	(50)	0
Disposal of business, net		1,511
Balance, ending	(20,589)	(250,950)
Accumulated Other Comprehensive Income (Loss), Unrealized (Loss) Gain on Cash Flow Hedges
Balance, beginning	11,538	8,091
Pretax income (loss)	4,501	(832)
Income tax effect	(1,053)	356
Reclassification of unrealized loss (gain)	(8,747)	4,257
Reclassification of deferred income taxes	(2,045)	(1,570)
Balance, ending	17,278	11,254
Accumulated Other Comprehensive Income (Loss), Unrealized (Loss) Gain on Pension Plans
Balance, beginning	(8,772)	2,737
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	(629)	836
Income tax effect	8	(318)
Reclassification of unrealized loss (gain)	0	(171)
Reclassification of deferred income taxes	0	48
Disposal of business, net		(3,436)
Balance, ending	(9,393)	(5,778)
Balance, beginning	(70,476)	(267,175)
Pretax income (loss)	43,305	21,736
Income tax effect	(1,111)	(674)
Reclassification of unrealized loss (gain)	8,747	4,086
Reclassification of deferred income taxes	2,045	(1,522)
Disposal of business, net		(1,925)
Other comprehensive loss of unconsolidated subsidiaries	(605)	(162)
Balance, ending	$ (14,618)	$ (245,636)

Accumulated Other Comprehensi63

Accumulated Other Comprehensive Income (Loss) Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (20,589)	$ (250,950)	$ (71,933)	$ (272,529)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	17,278	11,254	11,538	8,091
Accumulated other comprehensive loss	(14,618)	(245,636)	(70,476)	(267,175)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	48,435	20,068
Unrealized gain (loss) on derivatives, before tax	(4,501)	832
Reclassification of unrealized loss (gain)	(8,747)	4,257
Reclassification of unrealized loss (gain)	0	(171)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	9,393	5,778	8,772	(2,737)
Pretax income (loss)	43,305	21,736
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	50	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	1,053	(356)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	(629)	836
Other Comprehensive Income (Loss), Tax	(1,111)	(674)
Income tax effect	8	(318)
reclassification of unrealized gains losses	8,747	4,086
Reclassification of deferred income taxes	(2,045)	(1,570)
Reclassification of deferred income taxes	0	48
reclassification of deferred income taxes	2,045	(1,522)
Disposal of business, net		1,511
Disposal of business, net		(3,436)
Disposal of business, net		(1,925)
Other comprehensive loss of unconsolidated subsidiaries	(605)	(162)
Other comprehensive loss of unconsolidated subsidiaries	(1,914)	(162)	$ (1,309)	$ 0
Adoption of ASU 2018-02 (see Note 4)	5,345
Interest Rate Swap
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	2,000	(1,000)
Cross Currency Fx Forward Contract [Member]
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	(1,000)	(2,000)
Cross Currency Swap
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification of unrealized loss (gain)	(12,000)	5,000
Accumulated Gain (Loss) from Unconsoldated Subsidiaries [Member]
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive loss of unconsolidated subsidiaries		$ (162)
Foreign Currency Translation [Member]
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02 (see Note 4)	2,859
Derivative [Member]
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02 (see Note 4)	$ 2,486

Long-Term Obligations - Additio

Long-Term Obligations - Additional Information (Details) $ in Thousands, € in Millions	Apr. 09, 2018EUR (€)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Jan. 29, 2023USD ($)	Mar. 31, 2018USD ($)	Dec. 01, 2017USD ($)	Nov. 29, 2016USD ($)	Apr. 14, 2016EUR (€)	Jan. 29, 2016USD ($)	May 09, 2013USD ($)
Debt Instrument
Quarterly Payments on Term Loan		$ 4,000		$ 9,000
Debt and capital lease obligations			$ 3,428,280		$ 3,339,088
Deferred Finance Costs, Noncurrent, Net			21,476		23,157
Debt Instrument, Redemption Price, Percentage	100.00%
Receivables used as collateral for receivables securitization facility			$ 144,000		$ 144,000
Notes payable
Debt Instrument
Weighted average interest rates			1.40%		1.40%
Other Long Term Debt
Debt Instrument
Weighted average interest rates			1.70%		1.90%
Credit Agreement
Debt Instrument
Increment change in applicable margin						0.25%
Weighted average interest rates			2.20%		2.20%
Borrowings under credit agreement, carrying value			$ 2,000,000		$ 1,900,000
Fronting fee on letters of credit in addition to participation commission						0.125%
Current maturities of credit agreement			18,000		22,000
Outstanding letters of credit					65,000
Availability on the revolving credit facility					1,500,000
US Notes (2023)
Debt Instrument
Debt instrument, face amount			600,000		600,000					$ 600,000
Euro Notes (2024)
Debt Instrument
Debt instrument, face amount			600,150		$ 616,200			€ 500
Senior notes interest rate								3.875%
Receivables securitization
Debt Instrument
Weighted average interest rates					2.70%
Receivables securitization maximum borrowing capacity							$ 100,000
Borrowings under receivable securitization facility, carrying value			100,000		$ 100,000
Euro Notes 2026/28 [Member]
Debt Instrument
Debt instrument, face amount | €	€ 1,000
Euro Notes 2026 [Member]
Debt Instrument
Debt instrument, face amount | €	€ 750
Senior notes interest rate	3.625%
Euro Notes 2028 [Member]
Debt Instrument
Debt instrument, face amount | €	€ 250
Senior notes interest rate	4.125%
Amended Credit Agreement | Credit Agreement
Debt Instrument
Maximum credit agreement borrowings						$ 2,800,000			$ 2,500,000
Fourth Amended Credit Agreement | Credit Agreement
Debt Instrument
Payments of Financing Costs			$ 5,000
US Notes (2023)
Debt Instrument
Senior notes interest rate										4.75%
Maximum increment | Credit Agreement
Debt Instrument
Increment change in commitment fees						0.05%

Schedule of Long-Term Obligatio

Schedule of Long-Term Obligations (Details) $ in Thousands, € in Millions	12 Months Ended
	Dec. 31, 2017USD ($)	Apr. 09, 2018EUR (€)	Mar. 31, 2018USD ($)	Apr. 14, 2016EUR (€)
Debt Instrument
Line of Credit Facility, Increase (Decrease), Net	$ 300,000
Long-term obligations, total	3,428,280		$ 3,339,088
Deferred Finance Costs, Current, Net	(2,824)		(2,866)
Deferred Finance Costs, Noncurrent, Net	(21,476)		(23,157)
Long-term obligations, total, net	3,403,980		3,313,065
Current portion of long-term obligations	(126,360)		(142,277)
Long-term obligations, excluding current portion	3,277,620		3,170,788
Credit Agreement
Debt Instrument
Secured Debt, Current	18,000		22,000
Loans Payable
Debt Instrument
Term loan	704,800		700,395
Revolving Credit Facility
Debt Instrument
Long-term Line of Credit	1,283,551		1,172,140
Euro Notes (2024)
Debt Instrument
Debt instrument, face amount	600,150		616,200	€ 500
Debt Instrument, Interest Rate, Stated Percentage				3.875%
Euro Notes 2026 [Member]
Debt Instrument
Debt instrument, face amount | €		€ 750
Debt Instrument, Interest Rate, Stated Percentage		3.625%
Euro Notes 2028 [Member]
Debt Instrument
Debt instrument, face amount | €		€ 250
Debt Instrument, Interest Rate, Stated Percentage		4.125%
Receivables securitization
Debt Instrument
Borrowings under receivable securitization facility, carrying value	100,000		100,000
Notes payable
Debt Instrument
Notes Payable	29,146		29,413
Other Long Term Debt
Debt Instrument
Other long-term debt	110,633		$ 120,940
Fourth Amended Credit Agreement | Credit Agreement
Debt Instrument
Payments of Financing Costs	$ 5,000

Schedule of Long-Term Obligat66

Schedule of Long-Term Obligations (Parenthetical) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Dec. 01, 2017
Notes payable
Debt Instrument
Weighted average interest rates	1.40%	1.40%
Other Long Term Debt
Debt Instrument
Weighted average interest rates	1.90%	1.70%
Credit Agreement
Debt Instrument
Weighted average interest rates	2.20%	2.20%
Current maturities of credit agreement	$ 22	$ 18
Minimum increment | Credit Agreement
Debt Instrument
Change in Increments in Commitment Fee			0.025%

Long-Term Obligations Schedule

Long-Term Obligations Schedule of Maturities of Long-Term Obligations (Details) - USD ($) $ in Thousands	9 Months Ended	46 Months Ended
	Dec. 31, 2018	Jan. 29, 2023	Mar. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Quarterly Payments on Term Loan	$ 4,000	$ 9,000
Long-term obligations, total			$ 3,339,088	$ 3,428,280

Derivative Instruments and He68

Derivative Instruments and Hedging Activities - Additional Information (Details) $ in Thousands, € in Millions	Mar. 31, 2018USD ($)	Mar. 31, 2018EUR (€)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2016EUR (€)
Interest Rate Swap
Derivative
Derivative, Notional Amount	$ 590,000		$ 590,000
Cross Currency Swap
Derivative
Derivative, Notional Amount	402,580		406,546
Effect of Netting Derivative Instruments	(17,000)		$ (12,000)
Net loss included in accumulated other comprehensive income (loss) to be reclassified into interest expense within the next 12 months	1,000
Settlement of Notional Amounts | €		€ (15)
2016 Interest Rate Swaps [Member] | Interest Rate Swap
Derivative
Derivative, Notional Amount	$ 590,000
2016CrossCurrencySwaps [Member] | Cross Currency Swap
Derivative
Derivative, Notional Amount				$ 422,000	€ 400

Schedule of Cash Flow Hedges (D

Schedule of Cash Flow Hedges (Details) $ in Thousands, € in Millions	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2016EUR (€)
Interest Rate Swap [Member]
Derivative
Derivative, Notional Amount	$ 590,000	$ 590,000
Derivative Asset, Noncurrent	24,253	19,102
Derivative Liability, Noncurrent	0
Cross Currency Swap
Derivative
Derivative, Notional Amount	402,580	406,546
Derivative Asset, Noncurrent	9,208	5,504
Derivative Liability, Noncurrent	77,812	61,492
Derivative Asset, Noncurrent	33,461	24,606
Derivative Liability, Noncurrent	77,812	$ 61,492
2016 Interest Rate Swaps [Member] | Interest Rate Swap [Member]
Derivative
Derivative, Notional Amount	$ 590,000
2016CrossCurrencySwaps [Member] | Cross Currency Swap
Derivative
Derivative, Notional Amount			$ 422,000	€ 400

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) $ in Thousands, € in Millions	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Apr. 14, 2016EUR (€)	May 09, 2013USD ($)
Fair Value Measurements
Change in fair value of contingent consideration liabilities	$ 46	$ 0
Credit Agreement
Fair Value Measurements
Borrowings under credit agreement, carrying value	1,900,000		$ 2,000,000
Receivables securitization
Fair Value Measurements
Borrowings under receivable securitization facility, carrying value	100,000		100,000
US Notes (2023)
Fair Value Measurements
Debt instrument, fair value	602,000		615,000
Debt instrument, face amount	600,000		600,000		$ 600,000
Euro Notes (2024)
Fair Value Measurements
Debt instrument, fair value	652,000		658,000
Debt instrument, face amount	616,200		600,150	€ 500
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements
Assets, Fair Value Disclosure	79,657		70,590
Financial and Nonfinancial Liabilities, Fair Value Disclosure	131,188		111,327
Fair Value, Measurements, Recurring [Member] | Cash Surrender Value [Member]
Fair Value Measurements
Assets, Fair Value Disclosure	46,196		45,984
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value Measurements
Assets, Fair Value Disclosure	24,253		19,102
Fair Value, Measurements, Recurring [Member] | Cross Currency Swap
Fair Value Measurements
Assets, Fair Value Disclosure	9,208
Financial and Nonfinancial Liabilities, Fair Value Disclosure	77,812		61,492
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurements
Assets, Fair Value Disclosure	79,657		70,590
Financial and Nonfinancial Liabilities, Fair Value Disclosure	128,488		108,691
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Surrender Value [Member]
Fair Value Measurements
Assets, Fair Value Disclosure	$ 46,196		45,984
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value Measurements
Assets, Fair Value Disclosure			19,102
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cross Currency Swap
Fair Value Measurements
Assets, Fair Value Disclosure			5,504
Financial and Nonfinancial Liabilities, Fair Value Disclosure			$ 61,492

Financial Assets and Liabilitie

Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) $ in Thousands, € in Millions	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Apr. 14, 2016EUR (€)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative Asset, Noncurrent	$ 33,461	$ 24,606
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	79,657	70,590
Fair value liabilities measured on recurring basis	131,188	111,327
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	79,657	70,590
Fair value liabilities measured on recurring basis	128,488	108,691
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value liabilities measured on recurring basis	2,700	2,636
Fair Value, Measurements, Recurring [Member] | Cash surrender value of life insurance
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	46,196	45,984
Fair Value, Measurements, Recurring [Member] | Cash surrender value of life insurance | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	46,196	45,984
Fair Value, Measurements, Recurring [Member] | Contingent Consideration Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value liabilities measured on recurring basis	2,700	2,636
Fair Value, Measurements, Recurring [Member] | Contingent Consideration Liabilities | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value liabilities measured on recurring basis	2,700	2,636
Fair Value, Measurements, Recurring [Member] | Deferred Compensation Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value liabilities measured on recurring basis	50,676	47,199
Fair Value, Measurements, Recurring [Member] | Deferred Compensation Liabilities | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value liabilities measured on recurring basis	50,676	47,199
Fair Value, Measurements, Recurring [Member] | Cross Currency Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	9,208
Fair value liabilities measured on recurring basis	77,812	61,492
Fair Value, Measurements, Recurring [Member] | Cross Currency Swap | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis		5,504
Fair value liabilities measured on recurring basis		61,492
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis	24,253	19,102
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value assets measured on recurring basis		19,102
Euro Notes (2024)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value	652,000	658,000
Debt Instrument, Face Amount	616,200	600,150	€ 500
Cross Currency Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative Asset, Noncurrent	$ 9,208	$ 5,504

Future Minimum Lease Commitment

Future Minimum Lease Commitments (Details) $ in Thousands	Mar. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 186,038
Operating Leases, Future Minimum Payments Due, Next Twelve Months	207,724
Operating Leases, Future Minimum Payments, Due in Two Years	171,530
Operating Leases, Future Minimum Payments, Due in Three Years	132,755
Operating Leases, Future Minimum Payments, Due in Four Years	107,405
Operating Leases, Future Minimum Payments, Due in Five Years	91,007
Thereafter	532,760
Future Minimum Lease Payments	$ 1,429,219

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Excess tax benefit on stock based payments	$ 3	$ 3
U.S. federal statutory rate	21.00%	35.00%
Tax Cuts and Jobs Act of 2017, transition tax for accumulated foreign earnings, provisional amount			$ 51
Tax Cuts and Jobs Act of 2017, tax benefit from decrease to net deferred tax liabilities, provisional amount			$ 73

Segment and Geographic Inform74

Segment and Geographic Information - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)
Segment Reporting Information
Revenue	$ 2,720,764	$ 2,342,843
Number of operating segments	4
Number of reportable segments	3
North America
Segment Reporting Information
Revenue	$ 1,329,843	1,208,240
Number of reportable segments	1
Europe
Segment Reporting Information
Revenue	$ 1,040,430	820,897
Specialty
Segment Reporting Information
Revenue	$ 351,792	$ 314,934

Income Taxes Schedule of Compon

Income Taxes Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Deferred:
Provision for income taxes	$ 49,584	$ 72,155

Schedule of Financial Performan

Schedule of Financial Performance by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information
Revenue	$ 2,720,764	$ 2,342,843
Segment EBITDA	295,216	290,270
Depreciation and amortization	61,066	50,604
North America
Segment Reporting Information
Revenue	1,329,843	1,208,240
Segment EBITDA	177,713	176,135
Depreciation and amortization	21,228	20,378
Europe
Segment Reporting Information
Revenue	1,040,430	820,897
Segment EBITDA	75,534	78,694
Depreciation and amortization	32,757	24,751
Specialty
Segment Reporting Information
Revenue	351,792	314,934
Segment EBITDA	41,969	35,441
Depreciation and amortization	7,081	5,475
Intersegment Eliminations
Segment Reporting Information
Revenue	(1,301)	(1,228)
Third Party | North America
Segment Reporting Information
Revenue	1,329,660	1,208,047
Third Party | Europe
Segment Reporting Information
Revenue	1,040,430	820,897
Third Party | Specialty
Segment Reporting Information
Revenue	350,674	313,899
Intersegment | North America
Segment Reporting Information
Revenue	183	193
Intersegment | Europe
Segment Reporting Information
Revenue	0	0
Intersegment | Specialty
Segment Reporting Information
Revenue	1,118	1,035
Intersegment | Intersegment Eliminations
Segment Reporting Information
Revenue	$ (1,301)	$ (1,228)

Income Taxes Schedule of Income

Income Taxes Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	24.70%	33.90%
Income from continuing operations before provision for income taxes	$ 200,935	$ 212,750

Reconciliation Of Segment EBITD

Reconciliation Of Segment EBITDA To Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting [Abstract]
Net income attributable to LKQ stockholders	$ 152,960	$ 136,278
Less: net loss attributable to noncontrolling interest	(197)
Net income	152,763	136,278
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(197)
Net loss from discontinued operations	0	(4,531)
Net income from continuing operations attributable to LKQ stockholders	152,960	140,809
Depreciation and amortization	56,458	48,656
Depreciation and amortization - cost of goods sold	4,608	1,948
Interest expense, net	28,515	23,988
Provision for income taxes	49,584	72,155
EBITDA	292,125	287,556
Equity in earnings of unconsolidated subsidiaries	1,412	214
Restructuring and acquisition related expenses	4,054	2,928
Inventory step-up adjustment - acquisition related	403
Change in fair value of contingent consideration liabilities	(46)	0
Segment EBITDA	$ 295,216	$ 290,270

Income Taxes Schedule of Effect

Income Taxes Schedule of Effective Income Tax Rate Reconciliation (Details)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.00%
U.S. federal statutory rate	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Percent	24.70%	33.90%

Schedule of Capital Expenditure

Schedule of Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information
Capital Expenditures	$ 62,189	$ 44,398
North America
Segment Reporting Information
Capital Expenditures	29,662	16,760
Europe
Segment Reporting Information
Capital Expenditures	28,815	20,458
Specialty
Segment Reporting Information
Capital Expenditures	3,712	3,582
Discontinued Operations
Segment Reporting Information
Capital Expenditures	$ 0	$ 3,598

Schedule of Assets by Reportabl

Schedule of Assets by Reportable Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Segment Reporting Information
Receivables, net	$ 1,211,788	$ 1,065,617	$ 1,027,106
Inventories	2,401,309		2,380,783
Property, plant and equipment, net	929,756		913,089
Equity method investments	208,210		208,404
Other unallocated assets	4,885,115		4,837,490
Total assets	9,636,178		9,366,872
North America
Segment Reporting Information
Receivables, net	448,973		379,666
Inventories	1,053,322		1,076,393
Property, plant and equipment, net	542,453		537,286
Equity method investments	336		336
Europe
Segment Reporting Information
Receivables, net	622,592		555,372
Inventories	998,617		964,068
Property, plant and equipment, net	304,048		293,539
Equity method investments	207,874		208,068
Specialty
Segment Reporting Information
Receivables, net	140,223		92,068
Inventories	349,370		340,322
Property, plant and equipment, net	$ 83,255		$ 82,264

Income Taxes Schedule of Deferr

Income Taxes Schedule of Deferred Tax Assets and Liabilities Classification (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Noncurrent deferred tax liabilities	$ 242,226	$ 252,359

Segment and Geographic Inform83

Segment and Geographic Information Schedule of Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues from External Customers and Long-Lived Assets
Revenue	$ 2,720,764	$ 2,342,843
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Revenue	1,560,027	1,417,040
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Revenue	430,992	382,652
Other countries
Revenues from External Customers and Long-Lived Assets
Revenue	$ 729,745	$ 543,151

Schedule of Tangible Long-Lived

Schedule of Tangible Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets
Long-lived Assets	$ 929,756	$ 913,089
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Long-lived Assets	589,848	583,236
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Long-lived Assets	186,347	178,021
Other countries
Revenues from External Customers and Long-Lived Assets
Long-lived Assets	$ 153,561	$ 151,832

Condensed Consolidating Stateme

Condensed Consolidating Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 2,720,764	$ 2,342,843
Cost of goods sold	1,666,793	1,412,750
Gross margin	1,053,971	930,093
Selling, general and administrative expenses	766,891	642,817
Restructuring and acquisition related expenses	4,054	2,928
Depreciation and amortization	56,458	48,656
Operating (loss) income	226,568	235,692
Other expense (income):
Interest expense, net	28,515	23,988
Intercompany interest (income) expense, net	0	0
Other (income) expense, net	(2,882)	(1,046)
Total other expense, net	25,633	22,942
(Loss) income from continuing operations before (benefit) provision for income taxes	200,935	212,750
(Benefit) provision for income taxes	49,584	72,155
Equity in earnings of unconsolidated subsidiaries	1,412	214
Equity in earnings (loss) of subsidiaries	0	0
Income from continuing operations		140,809
Net loss from discontinued operations	0	(4,531)
Net income	152,763	136,278
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	152,960	136,278
Parent
Condensed Financial Statements, Captions [Line Items]
Revenue	0	0
Cost of goods sold	0	0
Gross margin	0	0
Selling, general and administrative expenses	9,130	9,183
Restructuring and acquisition related expenses	0	0
Depreciation and amortization	29	30
Operating (loss) income	(9,159)	(9,213)
Other expense (income):
Interest expense, net	18,008	16,180
Intercompany interest (income) expense, net	(15,400)	(5,672)
Other (income) expense, net	(1,015)	291
Total other expense, net	1,593	10,799
(Loss) income from continuing operations before (benefit) provision for income taxes	(10,752)	(20,012)
(Benefit) provision for income taxes	(3,904)	(7,437)
Equity in earnings of unconsolidated subsidiaries	0	(182)
Equity in earnings (loss) of subsidiaries	159,808	153,566
Income from continuing operations		140,809
Net loss from discontinued operations		(4,531)
Net income	152,960
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	152,960	136,278
Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue	1,577,595	1,453,516
Cost of goods sold	945,915	863,375
Gross margin	631,680	590,141
Selling, general and administrative expenses	426,797	385,528
Restructuring and acquisition related expenses	330	1,883
Depreciation and amortization	24,338	23,481
Operating (loss) income	180,215	179,249
Other expense (income):
Interest expense, net	212	198
Intercompany interest (income) expense, net	9,680	1,019
Other (income) expense, net	(5,882)	(169)
Total other expense, net	4,010	1,048
(Loss) income from continuing operations before (benefit) provision for income taxes	176,205	178,201
(Benefit) provision for income taxes	45,877	70,038
Equity in earnings of unconsolidated subsidiaries	0	0
Equity in earnings (loss) of subsidiaries	5,110	4,813
Income from continuing operations		112,976
Net loss from discontinued operations		(4,531)
Net income	135,438
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	135,438	108,445
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue	1,180,242	929,971
Cost of goods sold	757,951	590,019
Gross margin	422,291	339,952
Selling, general and administrative expenses	330,964	248,106
Restructuring and acquisition related expenses	3,724	1,045
Depreciation and amortization	32,091	25,145
Operating (loss) income	55,512	65,656
Other expense (income):
Interest expense, net	10,295	7,610
Intercompany interest (income) expense, net	5,720	4,653
Other (income) expense, net	4,015	(1,168)
Total other expense, net	20,030	11,095
(Loss) income from continuing operations before (benefit) provision for income taxes	35,482	54,561
(Benefit) provision for income taxes	7,611	9,554
Equity in earnings of unconsolidated subsidiaries	1,412	396
Equity in earnings (loss) of subsidiaries	0	0
Income from continuing operations		45,403
Net loss from discontinued operations		2,050
Net income	29,283
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	29,480	47,453
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenue	(37,073)	(40,644)
Cost of goods sold	(37,073)	(40,644)
Gross margin	0	0
Selling, general and administrative expenses	0	0
Restructuring and acquisition related expenses	0	0
Depreciation and amortization	0	0
Operating (loss) income	0	0
Other expense (income):
Interest expense, net	0	0
Intercompany interest (income) expense, net	0	0
Other (income) expense, net	0	0
Total other expense, net	0	0
(Loss) income from continuing operations before (benefit) provision for income taxes	0	0
(Benefit) provision for income taxes	0	0
Equity in earnings of unconsolidated subsidiaries	0	0
Equity in earnings (loss) of subsidiaries	(164,918)	(158,379)
Income from continuing operations		(158,379)
Net loss from discontinued operations		2,481
Net income	(164,918)
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	$ (164,918)	$ (155,898)

Condensed Consolidating State86

Condensed Consolidating Statements of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Net income	$ 152,763	$ 136,278
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	152,960	136,278
Other comprehensive income (loss):
Foreign currency translation, net of tax	48,485	21,579
Net change in unrealized gains/losses on cash flow hedges, net of tax	3,254	3,163
Net change in unrealized gains/losses on pension plans, net of tax	621	3,041
Net change in other comprehensive loss from unconsolidated subsidiaries	(605)	(162)
Other comprehensive income	50,513	21,539
Comprehensive income	203,276	157,817
Less: comprehensive loss attributable to noncontrolling interest	(197)
Comprehensive income (loss) attributable to LKQ stockholders	203,473	157,817
Parent
Condensed Financial Statements, Captions [Line Items]
Net income	152,960
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	152,960	136,278
Other comprehensive income (loss):
Foreign currency translation, net of tax	48,485	21,579
Net change in unrealized gains/losses on cash flow hedges, net of tax	3,254	3,163
Net change in unrealized gains/losses on pension plans, net of tax	621	3,041
Net change in other comprehensive loss from unconsolidated subsidiaries	(605)	(162)
Other comprehensive income	50,513	21,539
Comprehensive income	203,473
Less: comprehensive loss attributable to noncontrolling interest	0
Comprehensive income (loss) attributable to LKQ stockholders	203,473	157,817
Guarantors
Condensed Financial Statements, Captions [Line Items]
Net income	135,438
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	135,438	108,445
Other comprehensive income (loss):
Foreign currency translation, net of tax	(2,183)	3,878
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	(133)
Net change in unrealized gains/losses on pension plans, net of tax	621	2,805
Net change in other comprehensive loss from unconsolidated subsidiaries	0	0
Other comprehensive income	(2,804)	940
Comprehensive income	132,634
Less: comprehensive loss attributable to noncontrolling interest	0
Comprehensive income (loss) attributable to LKQ stockholders	132,634	109,385
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Net income	29,283
Less: net loss attributable to noncontrolling interest	(197)
Net income attributable to LKQ stockholders	29,480	47,453
Other comprehensive income (loss):
Foreign currency translation, net of tax	49,055	21,132
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	0
Net change in unrealized gains/losses on pension plans, net of tax	0	236
Net change in other comprehensive loss from unconsolidated subsidiaries	(605)	(162)
Other comprehensive income	48,450	20,734
Comprehensive income	77,733
Less: comprehensive loss attributable to noncontrolling interest	(197)
Comprehensive income (loss) attributable to LKQ stockholders	77,930	68,187
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net income	(164,918)
Less: net loss attributable to noncontrolling interest	0
Net income attributable to LKQ stockholders	(164,918)	(155,898)
Other comprehensive income (loss):
Foreign currency translation, net of tax	(46,872)	(25,010)
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	133
Net change in unrealized gains/losses on pension plans, net of tax	(621)	(3,041)
Net change in other comprehensive loss from unconsolidated subsidiaries	605	162
Other comprehensive income	(45,646)	(21,674)
Comprehensive income	(210,564)
Less: comprehensive loss attributable to noncontrolling interest	0
Comprehensive income (loss) attributable to LKQ stockholders	$ (210,564)	$ (177,572)

Condensed Consolidating Balance

Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 245,679		$ 279,766	$ 264,614	$ 227,400
Receivables, net	1,211,788	$ 1,065,617	1,027,106
Intercompany receivables, net	0		0
Inventories	2,401,309		2,380,783
Prepaid expenses and other current assets	180,367	178,987	134,479
Total current assets	4,039,143		3,822,134
Property, plant and equipment, net	929,756		913,089
Intangible assets:
Goodwill	3,572,198		3,536,511
Other intangibles, net	740,804		743,769
Investment in subsidiaries	0		0
Intercompany notes receivable	0		0
Equity method investments	208,210		208,404
Other assets	146,067		142,965
Total assets	9,636,178		9,366,872
Current liabilities:
Accounts payable	812,661		788,613
Intercompany payables, net	0		0
Accrued expenses:
Accrued payroll-related liabilities	112,140		143,424
Other accrued expenses	267,364		218,600
Refund liability	99,179	$ 83,019	0
Other current liabilities	41,167		45,727
Current portion of long-term obligations	142,277		126,360
Total current liabilities	1,474,788		1,322,724
Long-term obligations, excluding current portion	3,170,788		3,277,620
Intercompany notes payable	0		0
Deferred income taxes	242,226		252,359
Other noncurrent liabilities	329,395		307,516
Total Company stockholders' equity	4,406,587		4,198,169
Noncontrolling interest	12,394		8,484
Total stockholders' equity	4,418,981		4,206,653
Total liabilities and stockholders’ equity	9,636,178		9,366,872
Parent
Current assets:
Cash and cash equivalents	17,340		34,360	22,256	33,030
Receivables, net	843		0
Intercompany receivables, net	6,747		2,669
Inventories	0		0
Prepaid expenses and other current assets	1,864		34,136
Total current assets	26,794		71,165
Property, plant and equipment, net	904		910
Intangible assets:
Goodwill	0		0
Other intangibles, net	0		0
Investment in subsidiaries	5,355,015		5,952,687
Intercompany notes receivable	1,143,818		1,156,550
Equity method investments	0		0
Other assets	79,657		70,590
Total assets	6,606,188		7,251,902
Current liabilities:
Accounts payable	8,407		5,742
Intercompany payables, net	0		0
Accrued expenses:
Accrued payroll-related liabilities	5,224		9,448
Other accrued expenses	12,360		5,219
Refund liability	0
Other current liabilities	6,224		282
Current portion of long-term obligations	20,863		16,468
Total current liabilities	53,078		37,159
Long-term obligations, excluding current portion	1,956,376		2,095,826
Intercompany notes payable	0		750,000
Deferred income taxes	13,345		12,402
Other noncurrent liabilities	176,802		158,346
Total Company stockholders' equity	4,406,587		4,198,169
Total stockholders' equity	4,406,587		4,198,169
Total liabilities and stockholders’ equity	6,606,188		7,251,902
Guarantors
Current assets:
Cash and cash equivalents	28,975		35,131	24,529	35,360
Receivables, net	372,264		290,958
Intercompany receivables, net	0		3,010
Inventories	1,319,468		1,334,766
Prepaid expenses and other current assets	94,231		44,849
Total current assets	1,814,938		1,708,714
Property, plant and equipment, net	569,829		563,262
Intangible assets:
Goodwill	2,005,814		2,010,209
Other intangibles, net	289,057		291,036
Investment in subsidiaries	105,772		102,931
Intercompany notes receivable	32,777		782,638
Equity method investments	336		336
Other assets	36,403		33,597
Total assets	4,854,926		5,492,723
Current liabilities:
Accounts payable	358,971		340,951
Intercompany payables, net	21,170		230
Accrued expenses:
Accrued payroll-related liabilities	34,590		65,811
Other accrued expenses	101,274		95,900
Refund liability	54,270
Other current liabilities	19,255		27,066
Current portion of long-term obligations	1,912		1,912
Total current liabilities	591,442		531,870
Long-term obligations, excluding current portion	7,341		7,372
Intercompany notes payable	657,601		677,708
Deferred income taxes	115,736		116,021
Other noncurrent liabilities	102,559		101,189
Total Company stockholders' equity	3,380,247		4,058,563
Total stockholders' equity	3,380,247		4,058,563
Total liabilities and stockholders’ equity	4,854,926		5,492,723
Non-Guarantors
Current assets:
Cash and cash equivalents	199,364		210,275	217,829	159,010
Receivables, net	838,681		736,148
Intercompany receivables, net	21,170		230
Inventories	1,081,841		1,046,017
Prepaid expenses and other current assets	84,272		55,494
Total current assets	2,225,328		2,048,164
Property, plant and equipment, net	359,023		348,917
Intangible assets:
Goodwill	1,566,384		1,526,302
Other intangibles, net	451,747		452,733
Investment in subsidiaries	0		0
Intercompany notes receivable	0		0
Equity method investments	207,874		208,068
Other assets	30,007		38,778
Total assets	4,840,363		4,622,962
Current liabilities:
Accounts payable	445,283		441,920
Intercompany payables, net	6,747		5,679
Accrued expenses:
Accrued payroll-related liabilities	72,326		68,165
Other accrued expenses	153,730		117,481
Refund liability	44,909
Other current liabilities	15,688		18,379
Current portion of long-term obligations	119,502		107,980
Total current liabilities	858,185		759,604
Long-term obligations, excluding current portion	1,207,071		1,174,422
Intercompany notes payable	518,994		511,480
Deferred income taxes	113,145		123,936
Other noncurrent liabilities	50,034		47,981
Total Company stockholders' equity	2,080,540		1,997,055
Noncontrolling interest	12,394		8,484
Total stockholders' equity	2,092,934		2,005,539
Total liabilities and stockholders’ equity	4,840,363		4,622,962
Eliminations
Current assets:
Cash and cash equivalents	0		0	$ 0	$ 0
Receivables, net	0		0
Intercompany receivables, net	(27,917)		(5,909)
Inventories	0		0
Prepaid expenses and other current assets	0		0
Total current assets	(27,917)		(5,909)
Property, plant and equipment, net	0		0
Intangible assets:
Goodwill	0		0
Other intangibles, net	0		0
Investment in subsidiaries	(5,460,787)		(6,055,618)
Intercompany notes receivable	(1,176,595)		(1,939,188)
Equity method investments	0		0
Other assets	0		0
Total assets	(6,665,299)		(8,000,715)
Current liabilities:
Accounts payable	0		0
Intercompany payables, net	(27,917)		(5,909)
Accrued expenses:
Accrued payroll-related liabilities	0		0
Other accrued expenses	0		0
Refund liability	0
Other current liabilities	0		0
Current portion of long-term obligations	0		0
Total current liabilities	(27,917)		(5,909)
Long-term obligations, excluding current portion	0		0
Intercompany notes payable	(1,176,595)		(1,939,188)
Deferred income taxes	0		0
Other noncurrent liabilities	0		0
Total Company stockholders' equity	(5,460,787)		(6,055,618)
Total stockholders' equity	(5,460,787)		(6,055,618)
Total liabilities and stockholders’ equity	$ (6,665,299)		$ (8,000,715)

Condensed Consolidating State88

Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	$ 145,163	$ 172,293
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(62,189)	(44,398)
Investment and intercompany note activity with subsidiaries	0	0
Acquisitions, net of cash acquired	(2,966)	(77,056)
Proceeds from disposal of businness/investment		301,297	$ 301,000
Payments of deferred purchase price on receivables securitization	0	0
Other investing activities, net	534	1,314
Net cash (used in) provided by investing activities	(64,621)	181,157
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	2,255	2,464
Taxes paid related to net share settlements of stock-based compensation awards	(3,292)	(3,644)
Debt issuance costs	(724)
Borrowings under revolving credit facilities	201,669	45,239
Repayments under revolving credit facilities	(321,525)	(389,313)
Repayments under term loans	(4,405)	(9,295)
Repayments under receivables securitization facility		(150)
(Repayments) borrowings of other debt, net	4,409	23,313
Other financing activities, net	4,107	5,000
Investment and intercompany note activity with parent	0	0
Dividends	0	0
Net cash used in financing activities	(117,506)	(326,386)
Effect of exchange rate changes on cash and cash equivalents	2,877	3,034
Net increase (decrease) in cash and equivalents	(34,087)	30,098
Cash and cash equivalents of continuing operations, beginning of period	279,766	227,400	227,400
Add: Cash and cash equivalents of discontinued operations, beginning of period	0	7,116	7,116
Cash and cash equivalents, end of period	245,679	264,614	279,766
Parent
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	95,942	118,537
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(163)	0
Investment and intercompany note activity with subsidiaries	24,333	249,828
Acquisitions, net of cash acquired	0	0
Proceeds from disposal of businness/investment		0
Payments of deferred purchase price on receivables securitization	0	0
Other investing activities, net	0	0
Net cash (used in) provided by investing activities	24,170	249,828
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	2,255	2,464
Taxes paid related to net share settlements of stock-based compensation awards	(3,292)	(3,644)
Debt issuance costs	(724)
Borrowings under revolving credit facilities	161,000	10,000
Repayments under revolving credit facilities	(291,966)	(376,966)
Repayments under term loans	(4,405)	(9,295)
Repayments under receivables securitization facility		0
(Repayments) borrowings of other debt, net	0	(1,698)
Other financing activities, net		0
Investment and intercompany note activity with parent	0	0
Dividends	0	0
Net cash used in financing activities	(137,132)	(379,139)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and equivalents	(17,020)	(10,774)
Cash and cash equivalents of continuing operations, beginning of period	34,360	33,030	33,030
Add: Cash and cash equivalents of discontinued operations, beginning of period		0	0
Cash and cash equivalents, end of period	17,340	22,256	34,360
Guarantors
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	96,517	106,243
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(29,908)	(18,226)
Investment and intercompany note activity with subsidiaries	0	0
Acquisitions, net of cash acquired	(2,966)	(74,937)
Proceeds from disposal of businness/investment		305,740
Payments of deferred purchase price on receivables securitization	7,456	6,362
Other investing activities, net	(145)	1,008
Net cash (used in) provided by investing activities	(25,563)	219,947
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	0	0
Taxes paid related to net share settlements of stock-based compensation awards	0	0
Debt issuance costs	0
Borrowings under revolving credit facilities	0	0
Repayments under revolving credit facilities	0	0
Repayments under term loans	0	0
Repayments under receivables securitization facility		0
(Repayments) borrowings of other debt, net	(30)	(1,099)
Other financing activities, net		5,000
Investment and intercompany note activity with parent	(21,759)	(246,463)
Dividends	(54,995)	(94,638)
Net cash used in financing activities	(76,784)	(337,200)
Effect of exchange rate changes on cash and cash equivalents	(326)	30
Net increase (decrease) in cash and equivalents	(6,156)	(10,980)
Cash and cash equivalents of continuing operations, beginning of period	35,131	35,360	35,360
Add: Cash and cash equivalents of discontinued operations, beginning of period		149	149
Cash and cash equivalents, end of period	28,975	24,529	35,131
Non-Guarantors
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	243	35,789
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(32,118)	(26,172)
Investment and intercompany note activity with subsidiaries	0	0
Acquisitions, net of cash acquired	0	(2,119)
Proceeds from disposal of businness/investment		(4,443)
Payments of deferred purchase price on receivables securitization	0	0
Other investing activities, net	679	306
Net cash (used in) provided by investing activities	(31,439)	(32,428)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	0	0
Taxes paid related to net share settlements of stock-based compensation awards	0	0
Debt issuance costs	0
Borrowings under revolving credit facilities	40,669	35,239
Repayments under revolving credit facilities	(29,559)	(12,347)
Repayments under term loans	0	0
Repayments under receivables securitization facility		(150)
(Repayments) borrowings of other debt, net	4,439	26,110
Other financing activities, net	4,107	0
Investment and intercompany note activity with parent	(2,574)	(3,365)
Dividends	0	0
Net cash used in financing activities	17,082	45,487
Effect of exchange rate changes on cash and cash equivalents	3,203	3,004
Net increase (decrease) in cash and equivalents	(10,911)	51,852
Cash and cash equivalents of continuing operations, beginning of period	210,275	159,010	159,010
Add: Cash and cash equivalents of discontinued operations, beginning of period		6,967	6,967
Cash and cash equivalents, end of period	199,364	217,829	210,275
Continuing and Discontinued Operations
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash and cash equivalents of continuing operations, beginning of period		234,516	234,516
Continuing and Discontinued Operations | Parent
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash and cash equivalents of continuing operations, beginning of period		33,030	33,030
Continuing and Discontinued Operations | Guarantors
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash and cash equivalents of continuing operations, beginning of period		35,509	35,509
Continuing and Discontinued Operations | Non-Guarantors
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash and cash equivalents of continuing operations, beginning of period		165,977	165,977
Eliminations
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by operating activities	(47,539)	(88,276)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0
Investment and intercompany note activity with subsidiaries	(24,333)	(249,828)
Acquisitions, net of cash acquired	0	0
Proceeds from disposal of businness/investment		0
Payments of deferred purchase price on receivables securitization	(7,456)	(6,362)
Other investing activities, net	0	0
Net cash (used in) provided by investing activities	(31,789)	(256,190)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	0	0
Taxes paid related to net share settlements of stock-based compensation awards	0	0
Debt issuance costs	0
Borrowings under revolving credit facilities	0	0
Repayments under revolving credit facilities	0	0
Repayments under term loans	0	0
Repayments under receivables securitization facility		0
(Repayments) borrowings of other debt, net	0	0
Other financing activities, net		0
Investment and intercompany note activity with parent	24,333	249,828
Dividends	54,995	94,638
Net cash used in financing activities	79,328	344,466
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and equivalents	0	0
Cash and cash equivalents of continuing operations, beginning of period	0	0	0
Add: Cash and cash equivalents of discontinued operations, beginning of period		0	0
Cash and cash equivalents, end of period	$ 0	$ 0	$ 0