Standard Motor Products (SMP) 10-Q 4 Aug 22 2022 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Aug. 01, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	001-04743
Entity Registrant Name	Standard Motor Products, Inc.
Entity Central Index Key	0000093389
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	11-1362020
Entity Address, Address Line One	37-18 Northern Blvd.
Entity Address, City or Town	Long Island City
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11101
City Area Code	718
Local Phone Number	392-0200
Title of 12(b) Security	Common Stock, par value $2.00 per share
Trading Symbol	SMP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		21,408,957

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	[1]	$ 359,412	$ 342,076	$ 682,243	$ 618,629
Cost of sales		263,061	242,804	496,052	435,573
Gross profit		96,351	99,272	186,191	183,056
Selling, general and administrative expenses		68,468	62,347	131,352	116,807
Restructuring and integration expenses		3	0	44	0
Other income, net		13	0	13	0
Operating income		27,893	36,925	54,808	66,249
Other non-operating income, net		1,927	832	3,376	1,467
Interest expense		1,821	495	2,626	704
Earnings from continuing operations before taxes		27,999	37,262	55,558	67,012
Provision for income taxes		7,122	9,248	14,127	16,834
Earnings from continuing operations		20,877	28,014	41,431	50,178
Loss from discontinued operations, net of income taxes		(1,666)	(853)	(2,782)	(2,017)
Net earnings		19,211	27,161	38,649	48,161
Net earnings attributable to noncontrolling interest		85	19	77	19
Net earnings attributable to SMP	[2]	19,126	27,142	38,572	48,142
Net earnings attributable to SMP
Earnings from continuing operations		20,792	27,995	41,354	50,159
Discontinued operations		(1,666)	(853)	(2,782)	(2,017)
Net earnings attributable to SMP	[2]	$ 19,126	$ 27,142	$ 38,572	$ 48,142
Net earnings per common share - Basic:
Earnings from continuing operations (in dollars per share)		$ 0.96	$ 1.26	$ 1.89	$ 2.25
Discontinued operations (in dollars per share)		(0.08)	(0.04)	(0.13)	(0.09)
Net earnings per common share - Basic (in dollars per share)		0.88	1.22	1.76	2.16
Net earnings per common share - Diluted:
Earnings from continuing operations (in dollars per share)		0.93	1.23	1.85	2.21
Discontinued operations (in dollars per share)		(0.07)	(0.03)	(0.13)	(0.09)
Net earnings per common share - Diluted (in dollars per share)		0.86	1.20	1.72	2.12
Dividend declared per share (in dollars per share)		$ 0.27	$ 0.25	$ 0.54	$ 0.50
Average number of common shares (in shares)		21,757,998	22,198,545	21,867,644	22,257,922
Average number of common shares and dilutive common shares (in shares)		22,255,642	22,686,384	22,372,702	22,741,171
[1]Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.[2]Throughout this Form 10-Q, “SMP” refers to Standard Motor Products, Inc. and subsidiaries.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net earnings	$ 19,211	$ 27,161	$ 38,649	$ 48,161
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(6,528)	2,477	(7,166)	561
Derivative instruments	105	0	105	0
Pension and postretirement plans	(4)	(4)	(9)	(9)
Total other comprehensive income, net of tax	(6,427)	2,473	(7,070)	552
Total Comprehensive income	12,784	29,634	31,579	48,713
Comprehensive income (loss) attributable to noncontrolling interest, net of tax:
Net earnings	85	19	77	19
Foreign currency translation adjustments	(64)	(22)	(61)	(22)
Comprehensive income (loss) attributable to noncontrolling interest, net of tax	21	(3)	16	(3)
Comprehensive income attributable to SMP	$ 12,763	$ 29,637	$ 31,563	$ 48,716

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 14,186	$ 21,755
Accounts receivable, less allowances for discounts and expected credit losses of $6,012 and $6,170 for 2022 and 2021, respectively	229,657	180,604
Inventories	551,415	468,755
Unreturned customer inventories	21,405	22,268
Prepaid expenses and other current assets	26,198	17,823
Total current assets	842,861	711,205
Property, plant and equipment, net of accumulated depreciation of $234,217 and $227,788 for 2022 and 2021, respectively	104,931	102,786
Operating lease right-of-use assets	39,827	40,469
Goodwill	131,125	131,652
Other intangibles, net	101,649	106,234
Deferred income taxes	34,086	36,126
Investments in unconsolidated affiliates	44,885	44,087
Other assets	27,188	25,402
Total assets	1,326,552	1,197,961
CURRENT LIABILITIES:
Current portion of revolving credit facility	56,000	125,298
Current portion of term loan and other debt	7,954	3,117
Accounts payable	140,082	137,167
Sundry payables and accrued expenses	49,710	57,182
Accrued customer returns	55,725	42,412
Accrued core liability	23,117	23,663
Accrued rebates	41,647	42,472
Payroll and commissions	35,985	45,058
Total current liabilities	410,220	476,369
Long-term debt	203,500	21
Noncurrent operating lease liabilities	30,039	31,206
Other accrued liabilities	22,119	25,040
Accrued asbestos liabilities	48,025	52,698
Total liabilities	713,903	585,334
Commitments and contingencies
Stockholders' equity:
Common stock - par value $2.00 per share: Authorized - 30,000,000 shares; issued 23,936,036 shares	47,872	47,872
Capital in excess of par value	109,117	105,377
Retained earnings	559,069	532,319
Accumulated other comprehensive income	(15,178)	(8,169)
Treasury stock - at cost (2,458,247 shares and 1,911,792 shares in 2022 and 2021, respectively)	(99,294)	(75,819)
Total SMP stockholders' equity	601,586	601,580
Noncontrolling interest	11,063	11,047
Total stockholders' equity	612,649	612,627
Total liabilities and stockholders' equity	$ 1,326,552	$ 1,197,961

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Accounts receivable, allowances for discounts and expected credit losses	$ 6,012	$ 6,170
Property, plant and equipment, accumulated depreciation	$ 234,217	$ 227,788
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 2	$ 2
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	23,936,036	23,936,036
Treasury stock - at cost (in shares)	2,458,247	1,911,792

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 38,649	$ 48,161
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	13,893	13,100
Amortization of deferred financing cost	164	114
Increase (decrease) to allowance for expected credit losses	(253)	321
Increase (decrease) to inventory reserves	2,959	(463)
Equity income from joint ventures	(2,524)	(1,156)
Employee stock ownership plan allocation	1,148	1,257
Stock-based compensation	4,465	4,381
(Increase) decrease in deferred income taxes	2,090	(2,344)
Loss on discontinued operations, net of tax	2,782	2,017
Change in assets and liabilities:
(Increase) in accounts receivable	(49,659)	(4,715)
(Increase) in inventories	(87,744)	(46,682)
(Increase) decrease in prepaid expenses and other current assets	(7,102)	3,220
Increase in accounts payable	1,591	16,097
(Decrease) in sundry payables and accrued expenses	(5,020)	(6,491)
Net change in other assets and liabilities	(10,772)	(3,664)
Net cash provided by (used in) operating activities	(95,333)	23,153
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of and investments in businesses	0	(109,267)
Capital expenditures	(13,203)	(11,709)
Other investing activities	0	2
Net cash used in investing activities	(13,203)	(120,974)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under the term loan	100,000	0
Net borrowings under revolving credit facilities	39,202	125,000
Net borrowings of other debt and capital lease obligations	117	2,250
Purchase of treasury stock	(25,605)	(11,096)
Payments of debt issuance costs	(2,128)	0
Increase in overdraft balances	1,903	694
Dividends paid	(11,822)	(11,134)
Net cash provided by financing activities	101,667	105,714
Effect of exchange rate changes on cash	(700)	72
Net increase (decrease) in cash and cash equivalents	(7,569)	7,965
CASH AND CASH EQUIVALENTS at beginning of period	21,755	19,488
CASH AND CASH EQUIVALENTS at end of period	14,186	27,453
Cash paid during the period for:
Interest	2,219	481
Income taxes	$ 18,897	$ 12,803

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total SMP [Member]	Non-Controlling Interest [Member]	Total
Balance at beginning of period at Dec. 31, 2020	$ 47,872	$ 105,084	$ 463,612	$ (5,676)	$ (60,656)	$ 550,236	$ 0	$ 550,236
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest acquired	0	0	0	0	0	0	11,504	11,504
Net earnings	0	0	48,142	0	0	48,142	19	48,161
Other comprehensive income, net of tax	0	0	0	574	0	574	(22)	552
Cash dividends paid	0	0	(11,134)	0	0	(11,134)	0	(11,134)
Purchase of treasury stock	0	0	0	0	(11,096)	(11,096)	0	(11,096)
Stock-based compensation	0	1,844	0	0	2,537	4,381	0	4,381
Employee Stock Ownership Plan	0	134	0	0	2,379	2,513	0	2,513
Balance at end of period at Jun. 30, 2021	47,872	107,062	500,620	(5,102)	(66,836)	583,616	11,501	595,117
Balance at beginning of period at Mar. 31, 2021	47,872	106,366	479,024	(7,597)	(68,725)	556,940	0	556,940
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest acquired	0	0	0	0	0	0	11,504	11,504
Net earnings	0	0	27,142	0	0	27,142	19	27,161
Other comprehensive income, net of tax	0	0	0	2,495	0	2,495	(22)	2,473
Cash dividends paid	0	0	(5,546)	0	0	(5,546)	0	(5,546)
Purchase of treasury stock	0	0	0	0	0	0	0	0
Stock-based compensation	0	696	0	0	1,889	2,585	0	2,585
Balance at end of period at Jun. 30, 2021	47,872	107,062	500,620	(5,102)	(66,836)	583,616	11,501	595,117
Balance at beginning of period at Dec. 31, 2021	47,872	105,377	532,319	(8,169)	(75,819)	601,580	11,047	612,627
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	38,572	0	0	38,572	77	38,649
Other comprehensive income, net of tax	0	0	0	(7,009)	0	(7,009)	(61)	(7,070)
Cash dividends paid	0	0	(11,822)	0	0	(11,822)	0	(11,822)
Purchase of treasury stock	0	0	0	0	(26,496)	(26,496)	0	(26,496)
Stock-based compensation	0	3,371	0	0	1,094	4,465	0	4,465
Employee Stock Ownership Plan	0	369	0	0	1,927	2,296	0	2,296
Balance at end of period at Jun. 30, 2022	47,872	109,117	559,069	(15,178)	(99,294)	601,586	11,063	612,649
Balance at beginning of period at Mar. 31, 2022	47,872	107,606	545,830	(8,815)	(80,622)	611,871	11,042	622,913
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	19,126	0	0	19,126	85	19,211
Other comprehensive income, net of tax	0	0	0	(6,363)	0	(6,363)	(64)	(6,427)
Cash dividends paid	0	0	(5,887)	0	0	(5,887)	0	(5,887)
Purchase of treasury stock	0	0	0	0	(19,646)	(19,646)	0	(19,646)
Stock-based compensation	0	1,511	0	0	974	2,485	0	2,485
Balance at end of period at Jun. 30, 2022	$ 47,872	$ 109,117	$ 559,069	$ (15,178)	$ (99,294)	$ 601,586	$ 11,063	$ 612,649

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Basis of Presentation [Abstract]
Basis of Presentation	Note 1. Basis of Presentation Standard Motor Products, Inc. and subsidiaries (referred to hereinafter in these notes to the consolidated financial statements as “we,” “us,” “our,” “SMP,” or the “Company”) is a leading manufacturer and distributor of premium replacement parts utilized in the maintenance, repair and service of vehicles in the automotive aftermarket industry along with a complementary focus on specialized equipment parts for manufacturers across multiple industries around the world. The accompanying unaudited financial information should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Annual Report on Form -K for the year ended December The unaudited consolidated financial statements include our accounts and all domestic and international companies in which we have more than a equity ownership, except in instances where the minority shareholder maintains substantive participating rights, in which case we follow the equity method of accounting. In instances where we have more than a equity ownership and the minority shareholder does not maintain substantive participating rights, our consolidated financial statements include the accounts of the company on a consolidated basis with its net income and equity reported at amounts attributable to both our equity position and that of the noncontrolling interest. Investments in unconsolidated affiliates are accounted for on the equity method, as we do not have a controlling financial interest but have the ability to exercise significant influence. All significant inter-company items have been eliminated. The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form -Q and Rule - of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The results of operations for the interim periods are not necessarily indicative of the results of operations for the entire year. Reclassification Certain prior period amounts in the accompanying consolidated financial statements and related notes have been reclassified to conform to the 2022 presentation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2022
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies The . Derivative Instruments and Hedging Activities We Other than the addition of the foregoing accounting policy, “Derivative Instruments and Hedging Activities,” there have been no material changes to our critical accounting policies and estimates from the information provided in Note of the notes to our consolidated financial statements in our Annual Report on Form -K for the year ended December Recently Issued Accounting Pronouncements Standards that are not yet adopted as of June T he following table provides a brief description of recently issued accounting pronouncements that have not yet been adopted as of June 30, 2022, and that could have an impact on our financial statements: Standard Description Date of adoption / Effective date Effects on the financial statements or other significant matters A SU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting T his standard is intended to provide optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The new standard is applicable to contracts that reference LIBOR, or another reference rate, expected to be discontinued due to reference rate reform. E ffective March 12, 2020 through December 31, 2022 The new standard may be applied as of the beginning of an interim period that includes March 12, 2020 through December 31, 2022. As certain of our contracts reference LIBOR, including our supply chain financing arrangements, we are currently reviewing the optional guidance in the standard to determine its impact upon the discontinuance of LIBOR. At this time, we do not believe that the new guidance, nor the discontinuance of LIBOR, will have a material impact on our consolidated financial statements and related disclosures.

Business Acquisitions and Inves

Business Acquisitions and Investments	6 Months Ended
	Jun. 30, 2022
Business Acquisitions and Investments [Abstract]
Business Acquisitions and Investments	Note 3. Business Acquisitions and Investments 2021 Business Acquisitions Acquisition of Capital Stock of Stabil Operative Group GmbH (“Stabil”) In September 2021, we acquired 100% of the capital stock of Stabil Operative Group GmbH, a German company (“Stabil”), for Euros 13.7 million, or $16.3 million. Stabil is a manufacturer and distributor of a variety of components, including electronic sensors, control units, and clamping devices to the European Original Equipment (“OE”) market, serving both commercial and light vehicle applications. The acquired Stabil business was paid for with cash funded by borrowings under our revolving credit facility with JPMorgan Chase Bank, N.A., as agent, and is headquartered on the outskirts of Stuttgart, Germany with facilities in Germany and Hungary. The acquisition, reported as part of our Engine Management Segment, aligns with our strategy of expansion beyond our core aftermarket business into complementary areas, and gives us exposure to a diversified group of blue chip European commercial and light vehicle OE customers. The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase price $ 16,290 Assets acquired and liabilities assumed: Receivables $ 2,852 Inventory 5,126 Other current assets (1) 1,628 Property, plant and equipment, net 1,810 Operating lease right-of-use assets 4,971 Intangible assets 5,471 Goodwill 4,827 Current liabilities (4,190 ) Noncurrent operating lease liabilities (4,454 ) Deferred income taxes (1,751 ) Net assets acquired $ 16,290 (1) The other current assets balance includes of cash acquired. Intangible assets . Incremental revenues from the acquired Stabil business included in our consolidated statement of operations for the three months and six months ended June 30, 2022 were and $11.5 million, respectively. Acquisition of Capital Stock of Trumpet Holdings, Inc. (“Trombetta”) In May we acquired of the capital stock of Trumpet Holdings, Inc., a Delaware corporation, (more commonly known as “Trombetta”), for . Trombetta is a leading provider of power switching and power management products to Original Equipment (“OE”) customers in various markets. The acquired Trombetta business was paid for in cash funded by borrowings under our revolving credit facility with JPMorgan Chase Bank, N.A., as agent, and has manufacturing facilities in Milwaukee, Wisconsin, Sheboygan Falls, Wisconsin, Tijuana, Mexico, as well as a ownership in a joint venture in Hong Kong, with operations in Shanghai and Wuxi, China (“Trombetta Asia, Ltd.”). The acquisition, to be reported as part of our Engine Management Segment The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase price $ 111,711 Assets acquired and liabilities assumed: Receivables $ 9,173 Inventory 12,460 Other current assets (1) 5,193 Property, plant and equipment, net 4,939 Operating lease right-of-use assets 3,847 Intangible assets 54,700 Goodwill 49,250 Current liabilities (5,072 ) Noncurrent operating lease liabilities (3,065 ) Deferred income taxes (8,210 ) Subtotal 123,215 Fair value of acquired noncontrolling interest (11,504 ) Net assets acquired $ 111,711 (1) The other current assets balance includes of cash acquired. Intangible assets acquired of consist of customer relationships of that will be amortized on a straight-line basis over the estimated useful life of years; developed technology of that will be amortized on a straight-line basis over the estimated useful life of years; and a trade name of that will be amortized on a straight-line basis over the estimated useful life of years. Goodwill of was allocated to the Engine Management Segment. The goodwill reflects relationships, business specific knowledge and the replacement cost of an assembled workforce associated with personal reputations. The intangible assets and goodwill are not deductible for tax purposes. Incremental revenues from the acquired Trombetta business included in our consolidated statement of operations for the three months and six months ended June 30, 2022 were $10.8 million and $27.4 million, respectively . Acquisition of Particulate Matter Sensor Business of Stoneridge, Inc. (“Soot Sensor”) I n March 2021 and November 2021, we finalized the acquisitions of certain Soot Sensor product lines from Stoneridge, Inc. for $ million. The acquired product lines were paid for with cash funded by borrowings under our revolving credit facility with JPMorgan Chase Bank, N.A. The assets acquired include inventory, machinery, and equipment and certain intangible assets. The product lines acquired were used to manufacture sensors used in the exhaust and emission systems of diesel engines. The acquired product lines were located in Stoneridge’s facilities in Lexington, Ohio and Tallinn, Estonia. We did not acquire these facilities, nor any of Stoneridge’s employees, and have substantially completed the relocation of the acquired inventory, machinery and equipment related to the product lines to our engine management plants in Independence, Kansas and Bialystok, Poland. The acquisition, reported as part of our Engine Management Segment, aligns with our strategy of expansion into non-aftermarket parts. Customer relationships acquired include Volvo, CNHi and Hino. The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase Price $ 2,924 Assets acquired and liabilities assumed: Inventory $ 1,032 Machinery and equipment, net 1,137 Intangible assets 755 Net assets acquired $ 2,924 Intangible assets acquired of approximately $ million consist of customer relationships that will be amortized on a straight-line basis over the estimated useful life of years. Incremental revenues from the acquired Soot Sensor business included in our consolidated statement of operations for six months ended June 30, 2022 were $ 2.3 million, all of which relates to the first quarter of 2022.

Restructuring and Integration E

Restructuring and Integration Expenses	6 Months Ended
	Jun. 30, 2022
Restructuring and Integration Expenses [Abstract]
Restructuring and Integration Expenses	Note 4. Restructuring and Integration Expenses The aggregated liabilities included in “sundry payables and accrued expenses” and “other accrued liabilities” in the consolidated balance sheet relating to the restructuring and integration activities as of December 31, 2021 and June 30, 2022 and for the six months ended June 30, 2022, consisted of the following (in thousands): Workforce Reduction Other Exit Costs Total Exit activity liability at December 31, 2021 $ 79 $ — $ 79 Restructuring and integration costs: Amounts provided for during 2022 — 44 44 Cash payments (16 ) (44 ) (60 ) Reclassification (29 ) — (29 ) Exit activity liability at June 30, 2022 $ 34 $ — $ 34 Integration Costs Particulate Matter Sensor (“Soot Sensor”) Product Line Relocation In connection with our acquisitions in March 2021 and November 2021 of certain soot sensor product lines from Stoneridge, Inc., we incurred certain integration expenses in connection with the relocation of certain inventory, machinery and equipment to our existing facilities in Independence, Kansas and Bialystok, Poland. Integration expenses recognized and cash payments made of $44,000, during the six months ended June 30, 2022, related to these relocation activities in our Engine Management segment. The soot sensor product line relocation has been substantially completed. Restructuring Costs Plant Rationalization Programs The 2016 Plant Rationalization Program, which included the shutdown and sale of our Grapevine, Texas facility, and the 2017 Orlando Plant Rationalization Program, which included the shutdown our Orlando, Florida facility, have been substantially completed. Cash payments made of $ ,000 during the six months ended June 30, 2022 and the remaining aggregate liability of $ ,000 consists of severance payments to former employees terminated in connection with these programs

Sale of Receivables

Sale of Receivables	6 Months Ended
	Jun. 30, 2022
Sale of Receivables [Abstract]
Sale of Receivables	Note 5. Sale of Receivables We are party to several supply chain financing arrangements, in which we may sell certain of our customers’ trade accounts receivable to such customers’ financial institutions. We sell our undivided interests in certain of these receivables at our discretion when we determine that the cost of these arrangements is less than the cost of servicing our receivables with existing debt. Under the terms of the agreements, we retain no rights or interest, have no obligations with respect to the sold receivables, and do not service the receivables after the sale. As such, these transactions are being accounted for as a sale. Pursuant to these agreements, we sold $218.4 million and $374.1 million of receivables during the three months and six months ended June , To the extent that these arrangements are terminated, our financial condition, results of operations, cash flows and liquidity could be adversely affected by extended payment terms, delays or failures in collecting trade accounts receivables. The utility of the supply chain financing arrangements also depends upon the LIBOR rate, or an alternative benchmark reference rate, as it is a component of the discount rate applicable to each arrangement. If the LIBOR rate, or alternative benchmark reference rate, increases significantly, we may be negatively impacted as we may not be able to pass these added costs on to our customers, which could have a material and adverse effect upon our financial condition, results of operations and cash flows.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2022
Inventories [Abstract]
Inventories	Note 6. Inventories Inventories, which are stated at the lower of cost (determined by means of the first-in, first-out method) and net realizable value, consist of the following: June 30, 2022 December 31, 2021 (In thousands) Finished goods $ 345,200 $ 296,739 Work in process 17,248 16,010 Raw materials 188,967 156,006 Subtotal 551,415 468,755 Unreturned customer inventories 21,405 22,268 Total inventories $ 572,820 $ 491,023

Acquired Intangible Assets

Acquired Intangible Assets	6 Months Ended
	Jun. 30, 2022
Acquired Intangible Assets [Abstract]
Acquired Intangible Assets	Note 7. Acquired Intangible Assets Acquired identifiable intangible assets consist of the following: June 30, 2022 December 31, 2021 (In thousands) Customer relationships $ 156,321 $ 157,020 Patents, developed technology and intellectual property 14,123 14,123 Trademarks and trade names 8,880 8,880 Non-compete agreements 3,280 3,280 Supply agreements 800 800 Leaseholds 160 160 Total acquired intangible assets 183,564 184,263 Less accumulated amortization (1) (82,956 ) (78,932 ) Net acquired intangible assets $ 100,608 $ 105,331 (1) Applies to all intangible assets, except for trademarks and trade names totaling $2.6 million, which have indefinite useful lives and, as such, are not being amortized. Total amortization expense for acquired intangible assets was $2.2 million and $4.3 million for the three months and six months ended June 30, 2022, respectively, and $2.1 million and $4.1 million for the comparable periods in 2021. Based on the current estimated useful lives assigned to our intangible assets, amortization expense is estimated to be million for the remainder of 2022,

Leases

Leases	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Leases	Note 8. Leases We have operating and finance leases for our manufacturing facilities, warehouses, office space, automobiles, and certain equipment. Our leases have remaining lease terms of up to ten years, some of which may include one or more five-year renewal options. We have included the five-year renewal option for one of our leases in our operating lease payments as we concluded that it is reasonably certain that we will exercise the option. Leases with an initial term of twelve months or less are not recorded on the balance sheet. Operating lease expense is recognized on a straight-line basis over the lease term. Finance leases are not material. The following tables provide quantitative disclosures related to our operating leases and includes all operating leases acquired from the date of acquisition : Balance Sheet Information June 30, 2022 December 31, 2021 Assets Operating lease right-of-use assets $ 39,827 $ 40,469 Liabilities Sundry payables and accrued expenses $ 11,122 $ 10,544 Noncurrent operating lease liabilities 30,039 31,206 Total operating lease liabilities $ 41,161 $ 41,750 Weighted Average Remaining Lease Term Operating leases 4.9 Years 5.3 Years Weighted Average Discount Rate Operating leases 3.1 % 3 % Expense and Cash Flow Information Three Months Ended June 30, 2022 2021 Lease Expense Operating lease expense (a) $ 2,711 $ 2,441 Six Months Ended June 30 2022 2021 Lease Expense Operating lease expense (a) $ 5,541 $ 4,777 Supplemental Cash Flow Information Cash paid for the amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 5,397 $ 4,733 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 4,458 $ 14,077 (a) Excludes expenses of approximately $0.7 million and $1.1 million for the three and six months ended June 30, 2022, respectively, and approximately $0.3 million and $0.9 million for the comparable periods in 2021, respectively, related to non-lease components such as maintenance, property taxes, etc., and operating lease expense for leases with an initial term of 12 months or less, which is not material. Minimum Lease Payments At June 30, 2022, we are obligated to make minimum lease payments through 2031, under operating leases, which are as follows (in thousands): 2022 $ 5,784 2023 10,788 2024 8,316 2025 6,588 2026 5,780 Thereafter 6,851 Total lease payments $ 44,107 Less: Interest (2,946 ) Present value of lease liabilities $ 41,161

Credit Facilities and Long-Term

Credit Facilities and Long-Term Debt	6 Months Ended
	Jun. 30, 2022
Credit Facilities and Long-Term Debt [Abstract]
Credit Facilities and Long-Term Debt	Note 9. Credit Facilities and Long-Term Debt Total debt outstanding is summarized as follows: June 30, 2022 December 31, 2021 (In thousands) Credit facility – term loan due 2027 $ 100,000 $ — Credit facility – revolver due 2027 164,500 — Senior secured facility – revolver due 2023 — 125,298 Other (1) 2,954 3,138 Total debt $ 267,454 $ 128,436 Current maturities of debt $ 63,954 $ 128,415 Long-term debt 203,500 21 Total debt $ 267,454 $ 128,436 (1) Other includes borrowings under our Polish overdraft facility of Zloty 12.9 million (approximately $2.9 million) and Zloty 12.3 million (approximately $3 million) as of June 30, 2022 and December 31, 2021, respectively. Term Loan and Revolving Credit Facilities In March 2022, the Company and its wholly owned subsidiaries, SMP Motor Products Ltd. and Trumpet Holdings, Inc., entered into an amendment to our existing Credit Agreement, dated as of October 28, 2015, as amended (the "2015 Credit Agreement"), with JP Morgan Chase Bank, N.A., as agent, and a syndicate of lenders for our senior secured revolving credit facility. The amendment provided for the drawdown of an additional $50 million from the agreement’s accordion feature to increase the line of credit under the revolving credit facility from $250 million to $300 million, and updated the benchmark provisions to replace LIBOR with Term SOFR as the reference rate. In June 2022, the Company entered into a new Credit Agreement with JPMorgan Chase Bank, N.A., as administrative agent, and a syndicate of lenders (the “Credit Agreement”). The Credit Agreement provides for a $500 million credit facility comprised of a $100 million term loan facility (the “term loan”) and a $400 million multi-currency revolving credit facility available in U.S. Dollars, Euros, Sterling, Swiss Francs, Canadian Dollars and other currencies as agreed to by the administrative agent and the lenders (the “revolving facility”). The Credit Agreement replaces and refinances the 2015 Credit Agreement. Borrowings under the Credit Agreement were used to repay all outstanding borrowings under the 2015 Credit Agreement, and pay certain fees and expenses incurred in connection with the Credit Agreement, with future borrowings used for other general corporate purposes of the Company and its subsidiaries. The term loan amortizes in quarterly installments of 1.25% in each of the first four years, and quarterly installments of 2.5% in the fifth year of the Credit Agreement. The revolving facility has a $25 million sub-limit for the issuance of letters of credit and a $25 million sub-limit for the borrowing of swingline loans. The maturity date is June 1, 2027. The Company may request up to two one-year extensions of the maturity date. The Company may, upon the agreement of one or more then existing lenders or of additional financial institutions not currently party to the Credit Agreement, increase the revolving facility commitments or obtain incremental term loans by an aggregate amount not to exceed (x) the greater of (i) $168 million or (ii) 100% of consolidated EBITDA (as defined in the Credit Agreement) for the four fiscal quarters ended most recently before such date, plus (y) the amount of any voluntary prepayment of term loans, plus (z) an unlimited amount so long as, immediately after giving effect thereto, the pro forma First Lien Net Leverage Ratio (as defined in the Credit Agreement) does not exceed 2.5 to 1.0. Term loan and revolver facility borrowings in U.S. Dollars bear interest, at the Company’s election, at a rate per annum equal to Term SOFR plus 0.10% plus an applicable margin, or an alternate base rate plus an applicable margin, where the alternate base rate is the greater of the prime rate, the federal funds effective rate plus 0.50%, and one-month Term SOFR plus 0.10% plus 1.00%. Term loan borrowings were made at one-month Term SOFR. The applicable margin for the term benchmark borrowings ranges from 1.0% to 2.0%, and the applicable margin for alternate base rate borrowings ranges from 0% to 1.0%, in each case, based on the total net leverage ratio of the Company and its restricted subsidiaries. The Company may select interest periods of one, three or six months for Term SOFR borrowings. Interest is payable at the end of the selected interest period, but no less frequently than quarterly. The Company’s obligations under the Credit Agreement are guaranteed by its material domestic subsidiaries (each, a “Guarantor”), and secured by a first priority perfected security interest in substantially all of the existing and future personal property of the Company and each Guarantor, subject to certain exceptions. The collateral security described above also secures certain banking services obligations and interest rate swaps and currency or other hedging obligations of the Company owing to any of the then existing lenders or any affiliates thereof. Concurrently with the Company’s entry into the Credit Agreement, the Company also entered into a seven year interest rate swap agreement with Wells Fargo Bank, N.A., Co-Syndication Agent and lender under the Credit Agreement, on $100 million of borrowings under the Credit Agreement. The interest rate swap agreement matures in May 2029. Outstanding borrowings at June 30, 2022 under the Credit Agreement were $264.5 million, consisting of current borrowings of $61 million and long-term debt of $203.5 million; while outstanding borrowings at December 31, 2021 under the 2015 Credit Agreement were $125.3 million, consisting of current borrowings. Letters of credit outstanding under the Credit Agreement were $2.6 million at June 30, 2022, and $2.6 million under the 2015 Credit Agreement at December 31, 2021. Borrowings at December 31, 2021 under the 2015 Credit Agreement have been classified as current liabilities based upon accounting rules and certain provisions in the agreement. At June December The Credit Agreement contains customary covenants limiting, among other things, the incurrence of additional indebtedness, the creation of liens, mergers, consolidations, liquidations and dissolutions, sales of assets, dividends and other payments in respect of equity interests, acquisitions, investments, loans and guarantees, subject, in each case, to customary exceptions, thresholds and baskets. The Credit Agreement also contains customary events of default. Polish Overdraft Facility In February 2022, our Polish subsidiary, SMP Poland sp. z.o.o., amended its overdraft facility with HSBC Continental Europe (Spolka Akcyjna) Oddzial w Polsce, formerly HSBC France (Spolka Akcyjna) Oddzial w Polsce. The amended overdraft facility provides for borrowings of up to Zloty 30 million (approximately $6.7 million). Availability under the amended facility commenced in March 2022 Maturities of Debt As of June 30, 2022, maturities of debt through 2027, assuming no prepayments, are as follows (in thousands): Revolving Credit Facility Term Loan Facility Polish Overdraft Facility and Other Debt Total Remainder of 2022 $ — $ 2,500 $ 2,954 $ 5,454 2023 — 5,000 — 5,000 2024 — 5,000 — 5,000 2025 — 5,000 — 5,000 2026 — 7,500 — 7,500 2027 164,500 75,000 — 239,500 Total $ 164,500 $ 100,000 $ 2,954 $ 267,454 Less: current maturities (56,000 ) (5,000 ) (2,954 ) (63,954 ) Long-term debt $ 108,500 $ 95,000 $ — $ 203,500 Deferred Financing Costs We have deferred financing costs of approximately $2.4 million and $0.4 million as of June 30, 2022 and December 31, 2021, respectively. Deferred financing costs are related to our term loan and revolving credit facilities. In connection with the amendment to the 2015 Credit Agreement entered into in March 2022 and the Credit Agreement entered into in June 2022 with JPMorgan Chase Bank, N.A., as agent, we incurred and capitalized approximately $0.2 million, and $1.9 million, respectively, of deferred financing costs related to bank, legal, and other professional fees which are being amortized, along with certain preexisting deferred financing costs, through June 2027, the term of the Credit Agreement. In addition, upon entering into the Credit Agreement, we wrote-off $40,000 of unamortized deferred financing costs associated with the 2015 Credit Agreement. Unamortized deferred financing costs written-off in June 2022 were recorded in other non-operating income (expense), net in our consolidated statement of operations. Deferred financing costs as of June 30, 2022, assuming no prepayments, are being amortized as follows: (In thousands) Remainder of 2022 $ 257 2023 492 2024 479 2025 471 2026 465 2027 191 Total amortization $ 2,355

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2022
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	Note 10. Accumulated Other Comprehensive Income Changes in Accumulated Other Comprehensive Income by Component (in thousands) Three Months Ended June 30, 2022 Foreign Currency Translation Unrecognized Postretirement Benefit Costs (Credit) Unrealized derivative gains (losses) Total Balance at March 31, 2022 attributable to SMP $ (8,862 ) $ 47 $ — $ (8,815 ) Other comprehensive income before reclassifications (6,464 ) — 4 (1) (6,460 ) Amounts reclassified from accumulated other comprehensive income — (4 ) 101 97 Other comprehensive income, net (6,464 ) (4 ) 105 (6,363 ) Balance at June 30, 2022 attributable to SMP $ (15,326 ) $ 43 $ 105 $ (15,178 ) Six Months Ended June 30, 2022 Foreign Currency Translation Unrecognized Postretirement Benefit Costs (Credit) Unrealized derivative gains (losses) Total Balance at December 31, 2021 attributable to SMP $ (8,221 ) $ 52 $ — $ (8,169 ) Other comprehensive income before reclassifications (7,105 ) — 4 (1) (7,101 ) Amounts reclassified from accumulated other comprehensive income — (9 ) 101 92 Other comprehensive income, net (7,105 ) (9 ) 105 (7,009 ) Balance at June 30, 2022 attributable to SMP $ (15,326 ) $ 43 $ 105 $ (15,178 ) (1) Consists of the unrecognized gain relating to the change in fair value of the cash flow interest rate hedge of $137,000 ($102,000, net of tax) in the three months and six months ended June 30, 2022, net of cash settlements payments of $132,000 ($98,000, net of tax) in the three months and six months ended June 30, 2022. Reclassifications Out of Accumulated Other Comprehensive Income (in thousands) Three Months Ended June 30, Six Months Ended June 30, Details About Accumulated Other Comprehensive Income Components 2022 2022 Derivative cash flow hedge: Unrecognized gain (loss) (1) $ 136 $ 136 Postretirement Benefit Plans: Unrecognized gain (loss) (2) (6 ) (13 ) Total before income tax 130 123 Income tax expense 33 31 Total reclassifications attributable to SMP $ 97 $ 92 (1) Unrecognized accumulated other comprehensive income (loss) related to the cash flow interest rate hedge is reclassified to earnings and reported as part of interest expense in our consolidated statements of operations when the interest payments on the underlying borrowings are recognized. (2) Unrecognized accumulated other comprehensive income (loss) related to our post retirement plans is reclassified to earnings and included in the computation of net periodic postretirement benefit costs, whic

Stock-Based Compensation Plans

Stock-Based Compensation Plans	6 Months Ended
	Jun. 30, 2022
Stock-Based Compensation Plans [Abstract]
Stock-Based Compensation Plans	Note 11. Stock-Based Compensation Plans We account for our stock-based compensation plans in accordance with the provisions of FASB ASC 718, Stock Compensation Restricted and Performance Stock Grants We are authorized to issue, among other things, shares of restricted and performance-based stock to eligible employees and restricted stock to directors of up to shares under the Amended and Restated Omnibus Incentive Plan (“Plan”). As part of the Plan, we currently grant shares of restricted stock to eligible employees and our independent directors and performance-based shares to eligible employees. We grant eligible employees types of restricted stock (standard restricted shares and long-term retention restricted shares). Standard restricted shares granted to employees become fully vested no earlier than after the date of grant. Long-term retention restricted shares granted to selected executives vest at a rate on or within approximately of an executive reaching the ages 60 and 63 and become fully vested on or within approximately of an executive reaching the age 65 Restricted shares granted to directors become fully vested upon the first anniversary of the date of grant. Performance-based shares issued to eligible employees are subject to a three-year measuring period and the achievement of performance targets and, depending upon the achievement of such performance targets, they may become vested no earlier than three years after the date of grant. Each period we evaluate the probability of achieving the applicable targets, and we adjust our accrual accordingly. Restricted shares (other than long-term retention restricted shares) and performance shares issued to certain key executives and directors are subject to a one Our : Shares Weighted Average Grant Date Fair Value Per Share Balance at 2021 807,019 $ 34.92 Granted 8,125 33.81 Vested (13,300 ) 39.80 Forfeited (5,500 ) 42.24 Balance at June 30 2022 796,344 $ 34.78 We recorded compensation expense related to restricted shares and performance-based shares of $ million ($ million, net of tax) and $ million ($ million, net of tax) for the six . The unamortized compensation expense related to our restricted and performance-based shares was $ million at June 30, 2022, and is expected to be recognized as they vest over a weighted average period of years and years for employees and directors, respectively.

Employee Benefits

Employee Benefits	6 Months Ended
	Jun. 30, 2022
Employee Benefits [Abstract]
Employee Benefits	Note 12. Employee Benefits We provide certain medical and dental care benefits to former U.S. union employees. We maintain a defined contribution Supplemental Executive Retirement Plan for key employees. Under the plan, these employees may elect to defer a portion of their compensation and, in addition, we may at our discretion make contributions to the plan on behalf of the employees. In March 2022, we made company contributions to the plan of $0.8 million related to calendar year 2021. We also have an Employee Stock Ownership Plan for employees who are not covered by a collective bargaining agreement. In connection therewith, we maintain an employee benefits trust to which we contribute shares of treasury stock. We are authorized to instruct the trustees to distribute such shares toward the satisfaction of our future obligations under the plan. The shares held in trust are not considered outstanding for purposes of calculating earnings per share until they are committed to be released. The trustees will vote the shares in accordance with their fiduciary duties. During the six months ended June 30, 2022 we contributed to the trust an additional shares from our treasury and released shares from the trust leaving shares remaining in the trust as of June 30, 2022.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2022
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	Note 13. Derivative Financial Instruments Interest Rate Swap Agreements We occasionally use derivative financial instruments to reduce our market risk to changes in interest rates on our variable rate borrowings. The principal financial instruments used for cash flow hedging purposes are interest rate swap agreements. The interest rate swaps effectively convert a portion of our variable rate borrowings under our existing facilities to a fixed rate based upon determined notional amount. We do not enter into interest rate swap agreements, or other financial instruments, for trading or speculative purposes. In June 2022, we entered into a seven year interest rate swap agreement with a notional amount of $100 million that is to mature in May 2029 The fair value of the interest rate swap agreement as of June 30, 2022 was an asset of $137,000, which has been deferred and recorded in accumulated other comprehensive income, net of income taxes, in our consolidated balance sheet. When the interest expense on the underlying borrowing is recognized, the deferred gain/loss in accumulated other comprehensive income is recorded in earnings as interest expense in the consolidated statements of operations. We plan to perform quarterly hedge effectiveness assessments, and anticipate that the interest rate swap will be highly effective throughout its term.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2022
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 14. Fair Value Measurements We follow a three-level fair value hierarchy that prioritizes the inputs to measure fair value. This hierarchy requires entities to maximize the use of “observable inputs” and minimize the use of “unobservable inputs.” The three levels of inputs used to measure fair value are as follows: Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets as of the measurement date. Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect assumptions that market participants would use in pricing an asset or liability. The following is a summary of the estimated fair values, carrying amounts, and classification under the fair value hierarchy of our financial instruments at June 30, 2022 and December 31, 2021 (in thousands): June 30, 2022 December 31, 2021 Fair Value Hierarchy Fair Value Carrying Amount Fair Value Carrying Amount Cash and cash equivalents LEVEL 1 $ 14,186 $ 14,186 $ 21,755 $ 21,755 Deferred compensation LEVEL 1 20,217 20,217 23,623 23,623 Short term borrowings LEVEL 1 63,954 63,954 128,415 128,415 Long-term debt LEVEL 1 203,500 203,500 21 21 Cash flow interest rate swap LEVEL 2 137 137 — — The carrying value of cash and cash equivalents approximates fair value due to the short maturity of those investments. The fair value of the underlying assets held by the deferred compensation plan are based on the quoted market prices of the underlying funds which are held by registered investment companies. The carrying value of our variable rate short-term borrowings and long-term debt under our credit facilities approximates fair value as the variable interest rates in the facilities reflect current market rates. The fair value of our cash flow interest rate swap agreement is obtained from an independent third party, is based upon market quotes, and represents the net amount required to terminate the interest rate swap, taking into consideration market rates and counterparty credit risk.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Earnings Per Share	Note 15. Earnings Per Share The following are reconciliations of the net earnings attributable to SMP and the shares used in calculating basic and dilutive net earnings per common share attributable to SMP (in s, except per share data): Three Months Ended June 30, Six June 30, 2022 2021 2022 2021 N et Earnings Attributable to SMP - Earnings from continuing operations $ 20,792 $ 27,995 $ 41,354 $ 50,159 Loss from discontinued operations (1,666 ) (853 ) (2,782 ) (2,017 ) Net earnings attributable to SMP $ 19,126 $ 27,142 $ 38,572 $ 48,142 Basic Net Earnings Per Common Share Attributable to SMP - Earnings from continuing operations per common share $ 0.96 $ 1.26 $ 1.89 $ 2.25 Loss from discontinued operations per common share (0.08 ) (0.04 ) (0.13 ) (0.09 ) Net earnings per common share attributable to SMP $ 0.88 $ 1.22 $ 1.76 $ 2.16 Weighted average common shares outstanding 21,758 22,199 21,868 22,258 Diluted Net Earnings Per Common Share Attributable to SMP - Earnings from continuing operations per common share $ 0.93 $ 1.23 $ 1.85 $ 2.21 Loss from discontinued operations per common share (0.07 ) (0.03 ) (0.13 ) (0.09 ) Net earnings per common share attributable to SMP $ 0.86 $ 1.20 $ 1.72 $ 2.12 Weighted average common shares outstanding 21,758 22,199 21,868 22,258 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock and performance-based stock 498 487 505 483 Weighted average common shares outstanding – Diluted 22,256 22,686 22,373 22,741 The shares listed below were not included in the computation of diluted net earnings per common share attributable to SMP because to do so would have been anti-dilutive for the periods presented or because they were excluded under the treasury method (in s): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Restricted and performance-based shares 268 239 262 258

Industry Segments

Industry Segments	6 Months Ended
	Jun. 30, 2022
Industry Segments [Abstract]
Industry Segments	Note 16. Industry Segments We have two major reportable operating segments, each of which focuses on a specific line of automotive parts in the automotive aftermarket with a complementary focus on the non-aftermarket, industrial equipment and original equipment service markets. Our Engine Management Segment manufactures and remanufactures ignition and emission parts, ignition wires, battery cables, fuel system parts and sensors for vehicle systems. Our Temperature Control Segment manufactures and remanufactures air conditioning compressors, air conditioning and heating parts, engine cooling system parts, power window accessories and windshield washer system parts The following tables show our net sales, intersegment revenue and operating income for each reportable segment (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Sales (a) Engine Management $ 241,873 $ 233,216 $ 481,130 $ 445,234 Temperature Control 114,432 106,471 195,753 168,944 All Other 3,107 2,389 5,360 4,451 Consolidated $ 359,412 $ 342,076 $ 682,243 $ 618,629 Intersegment Revenue (a) Engine Management $ 5,007 $ 5,185 $ 10,796 $ 10,544 Temperature Control 2,831 3,125 6,047 4,972 All Other (7,838 ) (8,310 ) (16,843 ) (15,516 ) Consolidated $ — $ — $ — $ — Operating Income Engine Management $ 21,100 $ 30,384 $ 47,816 $ 61,498 Temperature Control 12,265 13,229 17,483 16,821 All Other (5,472 ) (6,688 ) (10,491 ) (12,070 ) Consolidated $ 27,893 $ 36,925 $ 54,808 $ 66,249 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments. For the disaggregation of our net sales from contracts with customers by geographic area, major product group and major sales channels for each of our segments, see Note 17, “Net Sales.”

Net Sales

Net Sales	6 Months Ended
	Jun. 30, 2022
Net Sales [Abstract]
Net Sales	Note 17. Net Sales Disaggregation of Net Sales We disaggregate our net sales from contracts with customers by geographic area, major product group, and major sales channels for each of our segments, as we believe it best depicts how the nature, amount, timing and uncertainty of our net sales are affected by economic factors. The following tables provide disaggregation of net sales information for the three months and six months ended June 30, 2022 and 2021 (in thousands): Three months ended June 30 2022 Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 214,444 $ 108,154 $ — $ 322,598 Canada 6,257 5,873 3,107 15,237 Europe 10,378 69 — 10,447 Mexico 6,666 105 — 6,771 Asia 2,634 30 — 2,664 Other foreign 1,494 201 — 1,695 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Major Product Group: Ignition, emission control, fuel and safety related system products $ 202,823 $ — $ 2,387 $ 205,210 Wire and cable 39,050 — 52 39,102 Compressors — 72,063 243 72,306 Other climate control parts — 42,369 425 42,794 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Major Sales Channel: Aftermarket $ 173,361 $ 103,652 $ 3,107 $ 280,120 OE/OES 59,984 10,094 — 70,078 Export 8,528 686 — 9,214 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Three months ended June 30 2021 Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 202,274 $ 101,241 $ — $ 303,515 Canada 7,433 4,632 2,389 14,454 Europe 5,252 161 — 5,413 Mexico 6,460 115 — 6,575 Asia 9,447 68 — 9,515 Other foreign 2,350 254 — 2,604 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Major Product Group: Ignition, emission control, fuel and safety related system products $ 192,486 $ — $ 1,832 $ 194,318 Wire and cable 40,730 — (142 ) 40,588 Compressors — 69,577 386 69,963 Other climate control parts — 36,894 313 37,207 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Major Sales Channel: Aftermarket $ 172,676 $ 97,763 $ 2,389 $ 272,828 OE/OES 53,776 8,104 — 61,880 Export 6,764 604 — 7,368 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Six months ended June 30, 2022 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 416,267 $ 183,603 $ — $ 599,870 Canada 14,397 11,189 5,360 30,946 Europe 18,085 114 — 18,199 Mexico 15,007 189 — 15,196 Asia 14,126 192 — 14,318 Other foreign 3,248 466 — 3,714 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Major Product Group: Ignition, emission control, fuel and safety related system products $ 403,177 $ — $ 4,707 $ 407,884 Wire and cable 77,953 — (31 ) 77,922 Compressors — 115,340 192 115,532 Other climate control parts — 80,413 492 80,905 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Major Sales Channel: Aftermarket $ 338,486 $ 175,931 $ 5,360 $ 519,777 OE/OES 126,541 18,588 — 145,129 Export 16,103 1,234 — 17,337 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Six June 30 2021 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 383,375 $ 159,977 $ — $ 543,352 Canada 16,007 7,958 4,451 28,416 Europe 10,401 217 — 10,618 Mexico 12,607 180 — 12,787 Asia 19,082 144 — 19,226 Other foreign 3,762 468 — 4,230 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 Major Product Group: Ignition, emission control, fuel and safety related system products $ 366,152 $ — $ 3,501 $ 369,653 Wire and cable 79,082 — (135 ) 78,947 Compressors — 102,951 404 103,355 Other climate control parts — 65,993 681 66,674 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 Major Sales Channel: Aftermarket $ 337,309 $ 153,448 $ 4,451 $ 495,208 OE/OES 94,821 14,484 — 109,305 Export 13,104 1,012 — 14,116 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments. (b) Other consists of the elimination of intersegment sales from our Engine Management and Temperature Control segments as well as sales from our Canadian business unit that does not meet the criteria of a reportable operating segment. Intersegment wire and cable sales for the six months ended June 30, 2022, and for the three and six months ended June 30, 2021 exceeded third party sales from our Canadian business unit. Geographic Area We sell our line of products primarily in the United States, with additional sales in Canada, Mexico, Europe, Asia and Latin America. Sales are attributed to countries based upon the location of the customer. Our sales are substantially denominated in U.S. dollars. Major Product Group The Engine Management segment of the Company principally generates revenue from the sale of automotive engine parts in the automotive aftermarket including ignition, emission control, fuel and safety related system products, and wire and cable parts. The Temperature Control segment of the Company principally generates revenue from the sale of automotive temperature control systems parts in the automotive aftermarket including air conditioning compressors and other climate control parts Major Sales Channel In the aftermarket channel, we sell our products to warehouse distributors and retailers. Our customers buy directly from us and sell directly to jobber stores, professional technicians and to “do-it-yourselfers” who perform automotive repairs on their personal vehicles. In the Specialized Original Equipment (“OE”) and Original Equipment Service (“OES”) channel, we sell our products to original equipment manufacturers who redistribute our products within their distribution network, independent dealerships and service dealer technicians. Lastly, in the Export channel, our domestic entities sell to customers outside the United States.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 18. Commitments and Contingencies Asbestos In 1986, we acquired a brake business, which we subsequently sold in March 1998 and which is accounted for as a discontinued operation in the accompanying statement of operations. When we originally acquired this brake business, we assumed future liabilities relating to any alleged exposure to asbestos-containing products manufactured by the seller of the acquired brake business. In accordance with the related purchase agreement, we agreed to assume the liabilities for all new claims filed on or after September 2001. Our ultimate exposure will depend upon the number of claims filed against us on or after September 2001, and the amounts paid for settlements, awards of asbestos-related damages, and defense of such claims. At June 30, 2022, approximately 1,590 cases were outstanding for which we may be responsible for any related liabilities. Since inception in September 2001 through June 30, 2022, the amounts paid for settled claims and awards of asbestos-related damages, including interest, were approximately $63.1 million. We do not have insurance coverage for the indemnity and defense costs associated with the claims we face. In evaluating our potential asbestos-related liability, we have considered various factors including, among other things, an actuarial study of the asbestos related liabilities performed by an independent actuarial firm, our settlement amounts and whether there are any co-defendants, the jurisdiction in which lawsuits are filed, and the status and results of such claims. As is our accounting policy, we consider the advice of actuarial consultants with experience in assessing asbestos-related liabilities to estimate our potential claim liability; and perform an actuarial evaluation in the third quarter of each year and whenever events or changes in circumstances indicate that additional provisions may be necessary. The methodology used to project asbestos-related liabilities and costs in our actuarial study considered: (1) historical data available from publicly available studies; (2) an analysis of our recent claims history to estimate likely filing rates into the future; (3) an analysis of our currently pending claims; (4) an analysis of our settlements and awards of asbestos-related damages to date; and (5) an analysis of closed claims with pay ratios and lag patterns in order to develop average future settlement values. Based on the information contained in the actuarial study and all other available information considered by us, we have concluded that no amount within the range of settlement payments and awards of asbestos-related damages was more likely than any other and, therefore, in assessing our asbestos liability we compare the low end of the range to our recorded liability to determine if an adjustment is required. In accordance with our policy to perform an annual actuarial evaluation in the third quarter of each year, an actuarial study was performed as of August 31, 2021. The results of the August 31, 2021 study included an estimate of our undiscounted liability for settlement payments and awards of asbestos-related damages, excluding legal costs and any potential recovery from insurance carriers, ranging from $60.9 million to $100.2 million for the period through 2065. The change from the updated prior year study, which was in December of 2020, was a $2.1 million decrease for the low end of the range, and a $1.1 million increase for the high end of the range. The change in the estimated undiscounted liability from the updated prior year study at both the low end and the high end of the range reflects our actual experience, our historical data and certain assumptions with respect to events that may occur in the future. Based upon the results of the August 31, 2021 actuarial study, in September 2021 we increased our asbestos liability to $60.9 million, the low end of the range, and recorded an incremental pre-tax provision of $5.3 million in earnings (loss) from discontinued operations in the accompanying statement of operations. Future legal costs, which are expensed as incurred and reported in earnings (loss) from discontinued operations in the accompanying statement of operations, are estimated, according to the August 31, 2021 study, to range from $49.4 million to $99.3 million for the period through 2065. Total operating cash outflows related to discontinued operations, which include settlements, awards of asbestos-related damages and legal costs, net of taxes, were $9.5 million and $5.5 million for the six months ended June 30, 2022 and 2021, respectively. We plan to perform an annual actuarial evaluation during the third quarter of each year for the foreseeable future and whenever events or changes in circumstances indicate that additional provisions may be necessary. Given the uncertainties associated with projecting such matters into the future and other factors outside our control, we can give no assurance that additional provisions will not be required. We will continue to monitor events and changes in circumstances surrounding these potential liabilities in determining whether to perform additional actuarial evaluations and whether additional provisions may be necessary. At the present time, however, we do not believe that any additional provisions would be reasonably likely to have a material adverse effect on our liquidity or consolidated financial position. Other Litigation We are currently involved in various other legal claims and legal proceedings (some of which may involve substantial amounts), including claims related to commercial disputes, product liability, employment, and environmental. Although these legal claims and legal proceedings are subject to inherent uncertainties, based on our understanding and evaluation of the relevant facts and circumstances, we believe that the ultimate outcome of these matters will not, either individually or in the aggregate, have a material adverse effect on our . We may at any time determine that settling any of these matters is in our best interests, which settlement may include substantial payments. Warranties We generally warrant our products against certain manufacturing and other defects. These product warranties are provided for specific periods of time of the product depending on the nature of the product. As of June 30, 2022 and 2021, we have accrued $23.8 million and $18.2 million, respectively, for estimated product warranty claims included in accrued customer returns. The accrued product warranty costs are based primarily on historical experience of actual warranty claims. The following table provides the changes in our product warranties (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2022 2021 2022 2021 Balance, beginning of period $ 20,711 $ 16,948 $ 17,463 $ 17,663 Liabilities accrued for current year sales 30,295 25,162 52,921 45,339 Settlements of warranty claims (27,240 ) (23,897 ) (46,618 ) (44,789 ) Balance, end of period $ 23,766 $ 18,213 $ 23,766 $ 18,213

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2022
Basis of Presentation [Abstract]
Principles of Consolidation	Standard Motor Products, Inc. and subsidiaries (referred to hereinafter in these notes to the consolidated financial statements as “we,” “us,” “our,” “SMP,” or the “Company”) is a leading manufacturer and distributor of premium replacement parts utilized in the maintenance, repair and service of vehicles in the automotive aftermarket industry along with a complementary focus on specialized equipment parts for manufacturers across multiple industries around the world. The accompanying unaudited financial information should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Annual Report on Form -K for the year ended December The unaudited consolidated financial statements include our accounts and all domestic and international companies in which we have more than a equity ownership, except in instances where the minority shareholder maintains substantive participating rights, in which case we follow the equity method of accounting. In instances where we have more than a equity ownership and the minority shareholder does not maintain substantive participating rights, our consolidated financial statements include the accounts of the company on a consolidated basis with its net income and equity reported at amounts attributable to both our equity position and that of the noncontrolling interest. Investments in unconsolidated affiliates are accounted for on the equity method, as we do not have a controlling financial interest but have the ability to exercise significant influence. All significant inter-company items have been eliminated. The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form -Q and Rule - of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The results of operations for the interim periods are not necessarily indicative of the results of operations for the entire year.
Reclassification	Reclassification Certain prior period amounts in the accompanying consolidated financial statements and related notes have been reclassified to conform to the 2022 presentation.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2022
Summary of Significant Accounting Policies [Abstract]
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities We Other than the addition of the foregoing accounting policy, “Derivative Instruments and Hedging Activities,” there have been no material changes to our critical accounting policies and estimates from the information provided in Note of the notes to our consolidated financial statements in our Annual Report on Form -K for the year ended December
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Standards that are not yet adopted as of June T he following table provides a brief description of recently issued accounting pronouncements that have not yet been adopted as of June 30, 2022, and that could have an impact on our financial statements: Standard Description Date of adoption / Effective date Effects on the financial statements or other significant matters A SU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting T his standard is intended to provide optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The new standard is applicable to contracts that reference LIBOR, or another reference rate, expected to be discontinued due to reference rate reform. E ffective March 12, 2020 through December 31, 2022 The new standard may be applied as of the beginning of an interim period that includes March 12, 2020 through December 31, 2022. As certain of our contracts reference LIBOR, including our supply chain financing arrangements, we are currently reviewing the optional guidance in the standard to determine its impact upon the discontinuance of LIBOR. At this time, we do not believe that the new guidance, nor the discontinuance of LIBOR, will have a material impact on our consolidated financial statements and related disclosures.

Business Acquisitions and Inv_2

Business Acquisitions and Investments (Tables)	6 Months Ended
	Jun. 30, 2022
Stabil [Member]
Business Acquisition [Line Items]
Allocation of Purchase Price, Assets Acquired And Liabilities Assumed	The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase price $ 16,290 Assets acquired and liabilities assumed: Receivables $ 2,852 Inventory 5,126 Other current assets (1) 1,628 Property, plant and equipment, net 1,810 Operating lease right-of-use assets 4,971 Intangible assets 5,471 Goodwill 4,827 Current liabilities (4,190 ) Noncurrent operating lease liabilities (4,454 ) Deferred income taxes (1,751 ) Net assets acquired $ 16,290 (1) The other current assets balance includes of cash acquired.
Trombetta [Member]
Business Acquisition [Line Items]
Allocation of Purchase Price, Assets Acquired And Liabilities Assumed	The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase price $ 111,711 Assets acquired and liabilities assumed: Receivables $ 9,173 Inventory 12,460 Other current assets (1) 5,193 Property, plant and equipment, net 4,939 Operating lease right-of-use assets 3,847 Intangible assets 54,700 Goodwill 49,250 Current liabilities (5,072 ) Noncurrent operating lease liabilities (3,065 ) Deferred income taxes (8,210 ) Subtotal 123,215 Fair value of acquired noncontrolling interest (11,504 ) Net assets acquired $ 111,711 (1) The other current assets balance includes of cash acquired.
Soot Sensor [Member]
Business Acquisition [Line Items]
Allocation of Purchase Price, Assets Acquired And Liabilities Assumed	The following table presents the allocation of the purchase price to the assets acquired and liabilities assumed based on their fair values (in thousands): Purchase Price $ 2,924 Assets acquired and liabilities assumed: Inventory $ 1,032 Machinery and equipment, net 1,137 Intangible assets 755 Net assets acquired $ 2,924

Restructuring and Integration_2

Restructuring and Integration Expenses (Tables)	6 Months Ended
	Jun. 30, 2022
Restructuring and Integration Expenses [Abstract]
Restructuring and Integration Expense	The aggregated liabilities included in “sundry payables and accrued expenses” and “other accrued liabilities” in the consolidated balance sheet relating to the restructuring and integration activities as of December 31, 2021 and June 30, 2022 and for the six months ended June 30, 2022, consisted of the following (in thousands): Workforce Reduction Other Exit Costs Total Exit activity liability at December 31, 2021 $ 79 $ — $ 79 Restructuring and integration costs: Amounts provided for during 2022 — 44 44 Cash payments (16 ) (44 ) (60 ) Reclassification (29 ) — (29 ) Exit activity liability at June 30, 2022 $ 34 $ — $ 34

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2022
Inventories [Abstract]
Inventories	Inventories, which are stated at the lower of cost (determined by means of the first-in, first-out method) and net realizable value, consist of the following: June 30, 2022 December 31, 2021 (In thousands) Finished goods $ 345,200 $ 296,739 Work in process 17,248 16,010 Raw materials 188,967 156,006 Subtotal 551,415 468,755 Unreturned customer inventories 21,405 22,268 Total inventories $ 572,820 $ 491,023

Acquired Intangible Assets (Tab

Acquired Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2022
Acquired Intangible Assets [Abstract]
Acquired Identifiable Intangible Assets	Acquired identifiable intangible assets consist of the following: June 30, 2022 December 31, 2021 (In thousands) Customer relationships $ 156,321 $ 157,020 Patents, developed technology and intellectual property 14,123 14,123 Trademarks and trade names 8,880 8,880 Non-compete agreements 3,280 3,280 Supply agreements 800 800 Leaseholds 160 160 Total acquired intangible assets 183,564 184,263 Less accumulated amortization (1) (82,956 ) (78,932 ) Net acquired intangible assets $ 100,608 $ 105,331 (1) Applies to all intangible assets, except for trademarks and trade names totaling $2.6 million, which have indefinite useful lives and, as such, are not being amortized.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Quantitative Disclosures Related to Operating Leases	The following tables provide quantitative disclosures related to our operating leases and includes all operating leases acquired from the date of acquisition : Balance Sheet Information June 30, 2022 December 31, 2021 Assets Operating lease right-of-use assets $ 39,827 $ 40,469 Liabilities Sundry payables and accrued expenses $ 11,122 $ 10,544 Noncurrent operating lease liabilities 30,039 31,206 Total operating lease liabilities $ 41,161 $ 41,750 Weighted Average Remaining Lease Term Operating leases 4.9 Years 5.3 Years Weighted Average Discount Rate Operating leases 3.1 % 3 % Expense and Cash Flow Information Three Months Ended June 30, 2022 2021 Lease Expense Operating lease expense (a) $ 2,711 $ 2,441 Six Months Ended June 30 2022 2021 Lease Expense Operating lease expense (a) $ 5,541 $ 4,777 Supplemental Cash Flow Information Cash paid for the amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 5,397 $ 4,733 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 4,458 $ 14,077 (a) Excludes expenses of approximately $0.7 million and $1.1 million for the three and six months ended June 30, 2022, respectively, and approximately $0.3 million and $0.9 million for the comparable periods in 2021, respectively, related to non-lease components such as maintenance, property taxes, etc., and operating lease expense for leases with an initial term of 12 months or less, which is not material.
Minimum Lease Payments	At June 30, 2022, we are obligated to make minimum lease payments through 2031, under operating leases, which are as follows (in thousands): 2022 $ 5,784 2023 10,788 2024 8,316 2025 6,588 2026 5,780 Thereafter 6,851 Total lease payments $ 44,107 Less: Interest (2,946 ) Present value of lease liabilities $ 41,161

Credit Facilities and Long-Te_2

Credit Facilities and Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2022
Credit Facilities and Long-Term Debt [Abstract]
Summary of Total Debt Outstanding	Total debt outstanding is summarized as follows: June 30, 2022 December 31, 2021 (In thousands) Credit facility – term loan due 2027 $ 100,000 $ — Credit facility – revolver due 2027 164,500 — Senior secured facility – revolver due 2023 — 125,298 Other (1) 2,954 3,138 Total debt $ 267,454 $ 128,436 Current maturities of debt $ 63,954 $ 128,415 Long-term debt 203,500 21 Total debt $ 267,454 $ 128,436 (1) Other includes borrowings under our Polish overdraft facility of Zloty 12.9 million (approximately $2.9 million) and Zloty 12.3 million (approximately $3 million) as of June 30, 2022 and December 31, 2021, respectively.
Maturities of Debt	As of June 30, 2022, maturities of debt through 2027, assuming no prepayments, are as follows (in thousands): Revolving Credit Facility Term Loan Facility Polish Overdraft Facility and Other Debt Total Remainder of 2022 $ — $ 2,500 $ 2,954 $ 5,454 2023 — 5,000 — 5,000 2024 — 5,000 — 5,000 2025 — 5,000 — 5,000 2026 — 7,500 — 7,500 2027 164,500 75,000 — 239,500 Total $ 164,500 $ 100,000 $ 2,954 $ 267,454 Less: current maturities (56,000 ) (5,000 ) (2,954 ) (63,954 ) Long-term debt $ 108,500 $ 95,000 $ — $ 203,500
Schedule of Deferred Financing Costs	Deferred financing costs as of June 30, 2022, assuming no prepayments, are being amortized as follows: (In thousands) Remainder of 2022 $ 257 2023 492 2024 479 2025 471 2026 465 2027 191 Total amortization $ 2,355

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2022
Accumulated Other Comprehensive Income [Abstract]
Changes in Accumulated Other Comprehensive Income by Component	Changes in Accumulated Other Comprehensive Income by Component (in thousands) Three Months Ended June 30, 2022 Foreign Currency Translation Unrecognized Postretirement Benefit Costs (Credit) Unrealized derivative gains (losses) Total Balance at March 31, 2022 attributable to SMP $ (8,862 ) $ 47 $ — $ (8,815 ) Other comprehensive income before reclassifications (6,464 ) — 4 (1) (6,460 ) Amounts reclassified from accumulated other comprehensive income — (4 ) 101 97 Other comprehensive income, net (6,464 ) (4 ) 105 (6,363 ) Balance at June 30, 2022 attributable to SMP $ (15,326 ) $ 43 $ 105 $ (15,178 ) Six Months Ended June 30, 2022 Foreign Currency Translation Unrecognized Postretirement Benefit Costs (Credit) Unrealized derivative gains (losses) Total Balance at December 31, 2021 attributable to SMP $ (8,221 ) $ 52 $ — $ (8,169 ) Other comprehensive income before reclassifications (7,105 ) — 4 (1) (7,101 ) Amounts reclassified from accumulated other comprehensive income — (9 ) 101 92 Other comprehensive income, net (7,105 ) (9 ) 105 (7,009 ) Balance at June 30, 2022 attributable to SMP $ (15,326 ) $ 43 $ 105 $ (15,178 ) (1) Consists of the unrecognized gain relating to the change in fair value of the cash flow interest rate hedge of $137,000 ($102,000, net of tax) in the three months and six months ended June 30, 2022, net of cash settlements payments of $132,000 ($98,000, net of tax) in the three months and six months ended June 30, 2022.
Reclassifications Out of Accumulated Other Comprehensive Income	Reclassifications Out of Accumulated Other Comprehensive Income (in thousands) Three Months Ended June 30, Six Months Ended June 30, Details About Accumulated Other Comprehensive Income Components 2022 2022 Derivative cash flow hedge: Unrecognized gain (loss) (1) $ 136 $ 136 Postretirement Benefit Plans: Unrecognized gain (loss) (2) (6 ) (13 ) Total before income tax 130 123 Income tax expense 33 31 Total reclassifications attributable to SMP $ 97 $ 92 (1) Unrecognized accumulated other comprehensive income (loss) related to the cash flow interest rate hedge is reclassified to earnings and reported as part of interest expense in our consolidated statements of operations when the interest payments on the underlying borrowings are recognized. (2) Unrecognized accumulated other comprehensive income (loss) related to our post retirement plans is reclassified to earnings and included in the computation of net periodic postretirement benefit costs, whic

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	6 Months Ended
	Jun. 30, 2022
Stock-Based Compensation Plans [Abstract]
Restricted and Performance-based Share Activity	Our : Shares Weighted Average Grant Date Fair Value Per Share Balance at 2021 807,019 $ 34.92 Granted 8,125 33.81 Vested (13,300 ) 39.80 Forfeited (5,500 ) 42.24 Balance at June 30 2022 796,344 $ 34.78

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Measurements [Abstract]
Summary of Estimated Fair Values, Carrying Amounts and Classification under Fair Value Hierarchy	The following is a summary of the estimated fair values, carrying amounts, and classification under the fair value hierarchy of our financial instruments at June 30, 2022 and December 31, 2021 (in thousands): June 30, 2022 December 31, 2021 Fair Value Hierarchy Fair Value Carrying Amount Fair Value Carrying Amount Cash and cash equivalents LEVEL 1 $ 14,186 $ 14,186 $ 21,755 $ 21,755 Deferred compensation LEVEL 1 20,217 20,217 23,623 23,623 Short term borrowings LEVEL 1 63,954 63,954 128,415 128,415 Long-term debt LEVEL 1 203,500 203,500 21 21 Cash flow interest rate swap LEVEL 2 137 137 — —

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Reconciliations of Earnings Available to Common Stockholders and Shares used in Calculating Basic and Dilutive Net Earnings per Common Share	The following are reconciliations of the net earnings attributable to SMP and the shares used in calculating basic and dilutive net earnings per common share attributable to SMP (in s, except per share data): Three Months Ended June 30, Six June 30, 2022 2021 2022 2021 N et Earnings Attributable to SMP - Earnings from continuing operations $ 20,792 $ 27,995 $ 41,354 $ 50,159 Loss from discontinued operations (1,666 ) (853 ) (2,782 ) (2,017 ) Net earnings attributable to SMP $ 19,126 $ 27,142 $ 38,572 $ 48,142 Basic Net Earnings Per Common Share Attributable to SMP - Earnings from continuing operations per common share $ 0.96 $ 1.26 $ 1.89 $ 2.25 Loss from discontinued operations per common share (0.08 ) (0.04 ) (0.13 ) (0.09 ) Net earnings per common share attributable to SMP $ 0.88 $ 1.22 $ 1.76 $ 2.16 Weighted average common shares outstanding 21,758 22,199 21,868 22,258 Diluted Net Earnings Per Common Share Attributable to SMP - Earnings from continuing operations per common share $ 0.93 $ 1.23 $ 1.85 $ 2.21 Loss from discontinued operations per common share (0.07 ) (0.03 ) (0.13 ) (0.09 ) Net earnings per common share attributable to SMP $ 0.86 $ 1.20 $ 1.72 $ 2.12 Weighted average common shares outstanding 21,758 22,199 21,868 22,258 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock and performance-based stock 498 487 505 483 Weighted average common shares outstanding – Diluted 22,256 22,686 22,373 22,741
Anti-dilutive Securities Excluded from Computation of Earnings per Share	The shares listed below were not included in the computation of diluted net earnings per common share attributable to SMP because to do so would have been anti-dilutive for the periods presented or because they were excluded under the treasury method (in s): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Restricted and performance-based shares 268 239 262 258

Industry Segments (Tables)

Industry Segments (Tables)	6 Months Ended
	Jun. 30, 2022
Industry Segments [Abstract]
Sales and Operating Income by Operating Segments	The following tables show our net sales, intersegment revenue and operating income for each reportable segment (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Sales (a) Engine Management $ 241,873 $ 233,216 $ 481,130 $ 445,234 Temperature Control 114,432 106,471 195,753 168,944 All Other 3,107 2,389 5,360 4,451 Consolidated $ 359,412 $ 342,076 $ 682,243 $ 618,629 Intersegment Revenue (a) Engine Management $ 5,007 $ 5,185 $ 10,796 $ 10,544 Temperature Control 2,831 3,125 6,047 4,972 All Other (7,838 ) (8,310 ) (16,843 ) (15,516 ) Consolidated $ — $ — $ — $ — Operating Income Engine Management $ 21,100 $ 30,384 $ 47,816 $ 61,498 Temperature Control 12,265 13,229 17,483 16,821 All Other (5,472 ) (6,688 ) (10,491 ) (12,070 ) Consolidated $ 27,893 $ 36,925 $ 54,808 $ 66,249 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

Net Sales (Tables)

Net Sales (Tables)	6 Months Ended
	Jun. 30, 2022
Net Sales [Abstract]
Disaggregation of Net Sales	The following tables provide disaggregation of net sales information for the three months and six months ended June 30, 2022 and 2021 (in thousands): Three months ended June 30 2022 Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 214,444 $ 108,154 $ — $ 322,598 Canada 6,257 5,873 3,107 15,237 Europe 10,378 69 — 10,447 Mexico 6,666 105 — 6,771 Asia 2,634 30 — 2,664 Other foreign 1,494 201 — 1,695 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Major Product Group: Ignition, emission control, fuel and safety related system products $ 202,823 $ — $ 2,387 $ 205,210 Wire and cable 39,050 — 52 39,102 Compressors — 72,063 243 72,306 Other climate control parts — 42,369 425 42,794 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Major Sales Channel: Aftermarket $ 173,361 $ 103,652 $ 3,107 $ 280,120 OE/OES 59,984 10,094 — 70,078 Export 8,528 686 — 9,214 Total $ 241,873 $ 114,432 $ 3,107 $ 359,412 Three months ended June 30 2021 Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 202,274 $ 101,241 $ — $ 303,515 Canada 7,433 4,632 2,389 14,454 Europe 5,252 161 — 5,413 Mexico 6,460 115 — 6,575 Asia 9,447 68 — 9,515 Other foreign 2,350 254 — 2,604 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Major Product Group: Ignition, emission control, fuel and safety related system products $ 192,486 $ — $ 1,832 $ 194,318 Wire and cable 40,730 — (142 ) 40,588 Compressors — 69,577 386 69,963 Other climate control parts — 36,894 313 37,207 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Major Sales Channel: Aftermarket $ 172,676 $ 97,763 $ 2,389 $ 272,828 OE/OES 53,776 8,104 — 61,880 Export 6,764 604 — 7,368 Total $ 233,216 $ 106,471 $ 2,389 $ 342,076 Six months ended June 30, 2022 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 416,267 $ 183,603 $ — $ 599,870 Canada 14,397 11,189 5,360 30,946 Europe 18,085 114 — 18,199 Mexico 15,007 189 — 15,196 Asia 14,126 192 — 14,318 Other foreign 3,248 466 — 3,714 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Major Product Group: Ignition, emission control, fuel and safety related system products $ 403,177 $ — $ 4,707 $ 407,884 Wire and cable 77,953 — (31 ) 77,922 Compressors — 115,340 192 115,532 Other climate control parts — 80,413 492 80,905 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Major Sales Channel: Aftermarket $ 338,486 $ 175,931 $ 5,360 $ 519,777 OE/OES 126,541 18,588 — 145,129 Export 16,103 1,234 — 17,337 Total $ 481,130 $ 195,753 $ 5,360 $ 682,243 Six June 30 2021 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 383,375 $ 159,977 $ — $ 543,352 Canada 16,007 7,958 4,451 28,416 Europe 10,401 217 — 10,618 Mexico 12,607 180 — 12,787 Asia 19,082 144 — 19,226 Other foreign 3,762 468 — 4,230 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 Major Product Group: Ignition, emission control, fuel and safety related system products $ 366,152 $ — $ 3,501 $ 369,653 Wire and cable 79,082 — (135 ) 78,947 Compressors — 102,951 404 103,355 Other climate control parts — 65,993 681 66,674 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 Major Sales Channel: Aftermarket $ 337,309 $ 153,448 $ 4,451 $ 495,208 OE/OES 94,821 14,484 — 109,305 Export 13,104 1,012 — 14,116 Total $ 445,234 $ 168,944 $ 4,451 $ 618,629 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments. (b) Other consists of the elimination of intersegment sales from our Engine Management and Temperature Control segments as well as sales from our Canadian business unit that does not meet the criteria of a reportable operating segment. Intersegment wire and cable sales for the six months ended June 30, 2022, and for the three and six months ended June 30, 2021 exceeded third party sales from our Canadian business unit.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies [Abstract]
Changes in Product Warranties	The following table provides the changes in our product warranties (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2022 2021 2022 2021 Balance, beginning of period $ 20,711 $ 16,948 $ 17,463 $ 17,663 Liabilities accrued for current year sales 30,295 25,162 52,921 45,339 Settlements of warranty claims (27,240 ) (23,897 ) (46,618 ) (44,789 ) Balance, end of period $ 23,766 $ 18,213 $ 23,766 $ 18,213

Basis of Presentation (Details)

Basis of Presentation (Details)	Jun. 30, 2022
Basis of Presentation [Abstract]
Equity ownership in entities included in consolidated financial statements, minimum	50%

Business Acquisitions and Inv_3

Business Acquisitions and Investments, Acquisition of Capital Stock of Stabil Operative Group GmbH (Details) $ in Thousands, € in Millions		1 Months Ended		3 Months Ended	6 Months Ended
		Sep. 30, 2021 USD ($)	Sep. 30, 2021 EUR (€)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Assets acquired and liabilities assumed [Abstract]
Goodwill				$ 131,125	$ 131,125	$ 131,652
Stabil [Member]
Business Combination, Description [Abstract]
Percentage of entity acquired		100%
Allocation of the Purchase Price, Assets Acquired and Liabilities Assumed [Abstract]
Purchase Price		$ 16,290	€ 13.7
Assets acquired and liabilities assumed [Abstract]
Receivables		2,852
Inventory		5,126
Other current assets	[1]	1,628
Property, plant, and equipment, net		1,810
Operating lease right-of-use assets		4,971
Intangible assets		5,471
Goodwill		4,827
Current liabilities		(4,190)
Noncurrent operating lease liabilities		(4,454)
Deferred income taxes		(1,751)
Net assets acquired		16,290
Cash acquired		$ 900
Incremental revenues from acquisition date				$ 5,700	$ 11,500
Stabil [Member] | Customer Relationships [Member]
Assets acquired and liabilities assumed [Abstract]
Estimated useful life of intangible assets					20 years
[1]The other current assets balance includes $0.9 million of cash acquired.

Business Acquisitions and Inv_4

Business Acquisitions and Investments, Acquisition of Capital Stock of Trumpet Holdings, Inc. (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	6 Months Ended
		May 31, 2021	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Assets acquired and liabilities assumed [Abstract]
Goodwill			$ 131,125	$ 131,125	$ 131,652
Trombetta [Member]
Business Combination, Description [Abstract]
Percentage of entity acquired		100%
Allocation of the Purchase Price, Assets Acquired and Liabilities Assumed [Abstract]
Purchase Price		$ 111,711
Assets acquired and liabilities assumed [Abstract]
Receivables		9,173
Inventory		12,460
Other current assets	[1]	5,193
Property, plant, and equipment, net		4,939
Operating lease right-of-use assets		3,847
Intangible assets		54,700
Goodwill		49,250
Current liabilities		(5,072)
Noncurrent operating lease liabilities		(3,065)
Deferred income taxes		(8,210)
Subtotal		123,215
Fair value of acquired noncontrolling interest		(11,504)
Net assets acquired		111,711
Cash acquired		4,600
Incremental revenues from acquisition date			$ 10,800	$ 27,400
Trombetta [Member] | Customer Relationships [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		39,400
Estimated useful life of intangible assets				20 years
Trombetta [Member] | Developed Technology [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		13,400
Estimated useful life of intangible assets				15 years
Trombetta [Member] | Trade Names [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		$ 1,900
Estimated useful life of intangible assets				10 years
Trombetta [Member] | Trombetta Asia, Ltd [Member]
Business Combination, Description [Abstract]
Percentage of entity acquired		70%
[1]The other current assets balance includes $4.6 million of cash acquired.

Business Acquisitions and Inv_5

Business Acquisitions and Investments, Acquisition of Particulate Matter Sensor Business of Stoneridge, Inc. (Details) - Soot Sensor [Member] - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 30, 2022	Nov. 30, 2021
Allocation of the Purchase Price, Assets Acquired and Liabilities Assumed [Abstract]
Purchase Price		$ 2,924
Assets acquired and liabilities assumed [Abstract]
Inventory		1,032
Machinery and equipment, net		1,137
Intangible assets		755
Net assets acquired		2,924
Business Combination, Description [Abstract]
Incremental revenues from acquisition date	$ 2,300
Customer Relationships [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		$ 800
Business Combination, Description [Abstract]
Estimated useful life of intangible assets	10 years

Restructuring and Integration_3

Restructuring and Integration Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period			$ 79
Restructuring and integration costs provided for during 2022	$ 3	$ 0	44	$ 0
Cash payments			(60)
Reclassification			(29)
Exit activity liability, end of period	34		34
Soot Sensor Product Line Relocation [Member]
Restructuring and integration activities [Roll Forward]
Cash payments			(44)
Plant Rationalization Program [Member]
Restructuring and integration activities [Roll Forward]
Cash payments			(16)
Exit activity liability, end of period	34		34
Workforce Reduction [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period			79
Restructuring and integration costs provided for during 2022			0
Cash payments			(16)
Reclassification			(29)
Exit activity liability, end of period	34		34
Other Exit Costs [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period			0
Restructuring and integration costs provided for during 2022			44
Cash payments			(44)
Reclassification			0
Exit activity liability, end of period	$ 0		$ 0

Sale of Receivables (Details)

Sale of Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 218.4	$ 203.1	$ 374.1	$ 394.4
Receivables not yet sold	10.8		10.8		$ 1.3
Charge related to sale of receivables	$ 7.7	$ 3	$ 11.2	$ 5.7

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Inventories [Abstract]
Finished goods	$ 345,200	$ 296,739
Work in process	17,248	16,010
Raw materials	188,967	156,006
Subtotal	551,415	468,755
Unreturned customer inventories	21,405	22,268
Total inventories	$ 572,820	$ 491,023

Acquired Intangible Assets, Ide

Acquired Intangible Assets, Identifiable Intangible Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		$ 183,564	$ 184,263
Less accumulated amortization	[1]	(82,956)	(78,932)
Net acquired intangible assets		100,608	105,331
Customer Relationships [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		156,321	157,020
Patents, Developed Technology and Intellectual Property [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		14,123	14,123
Trademarks and Trade Names [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		8,880	8,880
Acquired indefinite-lived intangible assets		2,600
Non-compete Agreements [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		3,280	3,280
Supply Agreements [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		800	800
Leaseholds [Member]
Indefinite Lived Intangible Assets [Abstract]
Total acquired intangible assets		$ 160	$ 160
[1]Applies to all intangible assets, except for trademarks and trade names totaling $2.6 million, which have indefinite useful lives and, as such, are not being amortized.

Acquired Intangible Assets, Amo

Acquired Intangible Assets, Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Amortization of acquired intangible assets [Abstract]
Amortization expense	$ 2.2	$ 2.1	$ 4.3	$ 4.1
Estimated amortization expense, remainder of 2022	4.3		4.3
Estimated amortization expense in year 2023	8.3		8.3
Estimated amortization expense in year 2024	8.3		8.3
Estimated amortization expense in year 2025	8.3		8.3
Estimated amortization expense in years 2026 through 2041	$ 68.8		$ 68.8

Leases (Details)

Leases (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Quantitative Lease Disclosures [Abstract]
Renewal option period		5 years		5 years
Assets [Abstract]
Operating lease right-of-use assets		$ 39,827		$ 39,827		$ 40,469
Liabilities [Abstract]
Sundry payables and accrued expenses		11,122		11,122		10,544
Noncurrent operating lease liabilities		30,039		30,039		31,206
Total operating lease liabilities		$ 41,161		$ 41,161		$ 41,750
Operating Leases [Abstract]
Weighted average remaining lease term		4 years 10 months 24 days		4 years 10 months 24 days		5 years 3 months 18 days
Weighted average discount rate		3.10%		3.10%		3%
Lease Expense [Abstract]
Operating lease expense	[1]	$ 2,711	$ 2,441	$ 5,541	$ 4,777
Excluded expenses of non lease		700	$ 300	1,100	900
Cash Paid for the amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases				5,397	4,733
Right-of-use assets obtained in exchange for new lease obligations [Abstract]
Operating leases				4,458	$ 14,077
Minimum Lease Payments [Abstract]
2022		5,784		5,784
2023		10,788		10,788
2024		8,316		8,316
2025		6,588		6,588
2026		5,780		5,780
Thereafter		6,851		6,851
Total lease payments		44,107		44,107
Less: Interest		(2,946)		(2,946)
Total operating lease liabilities		$ 41,161		$ 41,161		$ 41,750
Maximum [Member]
Quantitative Lease Disclosures [Abstract]
Remaining operating lease terms		10 years		10 years
[1]Excludes expenses of approximately $0.7 million and $1.1 million for the three and six months ended June 30, 2022, respectively, and approximately $0.3 million and $0.9 million for the comparable periods in 2021, respectively, related to non-lease components such as maintenance, property taxes, etc., and operating lease expense for leases with an initial term of 12 months or less, which is not material.

Credit Facilities and Long-Te_3

Credit Facilities and Long-Term Debt, Total Debt Outstanding (Details) $ in Thousands, zł in Millions		Jun. 30, 2022 USD ($)	Jun. 30, 2022 PLN (zł)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 PLN (zł)
Debt Instruments [Abstract]
Total debt		$ 267,454		$ 128,436
Current maturities of debt		63,954		128,415
Long-term debt		203,500		21
Credit Facility - Term Loan Due 2027 [Member]
Debt Instruments [Abstract]
Total debt		100,000		0
Current maturities of debt		5,000
Long-term debt		95,000
Credit Facility - Revolver Due 2027 [Member]
Debt Instruments [Abstract]
Total debt		164,500		0
Current maturities of debt		56,000
Long-term debt		108,500
Senior Secured Facility - Revolver Due 2023 [Member]
Debt Instruments [Abstract]
Total debt		0		125,298
Other [Member]
Debt Instruments [Abstract]
Total debt	[1]	2,954		3,138
Current maturities of debt		2,954
Long-term debt		0
Line of Credit Facility [Abstract]
Overdraft facility		$ 2,900	zł 12.9	$ 3,000	zł 12.3
[1]Other includes borrowings under our Polish overdraft facility of Zloty 12.9 million (approximately $2.9 million) and Zloty 12.3 million (approximately $3 million) as of June 30, 2022 and December 31, 2021, respectively.

Credit Facilities and Long-Te_4

Credit Facilities and Long-Term Debt, Term Loan and Revolving Credit Facilities (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($) Installment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)
Line of Credit Facility [Abstract]
Current portion of debt	$ 56,000		$ 125,298
Senior Secured Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	300,000		250,000
Line of credit facility, accordion feature				$ 50,000
Outstanding borrowings under credit facility			125,300
Outstanding letters of credit			$ 2,600
Weighted average interest rate			1.40%
Senior Secured Revolving Credit Facility [Member] | Alternate Base Rate [Member]
Line of Credit Facility [Abstract]
Outstanding borrowings under credit facility			$ 300
Weighted average interest rate			3.50%
Average daily loan balance outstanding		$ 1,000	$ 1,100
Senior Secured Revolving Credit Facility [Member] | Direct Borrowings [Member]
Line of Credit Facility [Abstract]
Outstanding borrowings under credit facility			$ 125,000
Weighted average interest rate			1.40%
Term Loan and Revolving Credit Facilities [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 500,000
Maturity date	Jun. 01, 2027
Frequency of periodic payment	quarterly
Debt instrument, extension period	1 year
Borrowing base	$ 168,000
Maximum consolidated EBITDA	1
Net Leverage Ratio	250%
Outstanding borrowings under credit facility	$ 264,500
Current portion of debt	61,000
Long-term debt	203,500
Outstanding letters of credit	$ 2,600
Weighted average interest rate	3.50%
Term Loan and Revolving Credit Facilities [Member] | SOFR [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	0.10%
Term of variable rate	1 month
Interest rate periods	one, three or six months
Outstanding borrowings under credit facility	$ 260,000
Weighted average interest rate	3.50%
Term Loan and Revolving Credit Facilities [Member] | Federal Funds Rate [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	0.50%
Term Loan and Revolving Credit Facilities [Member] | Term Benchmark Borrowings [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1%
Term Loan and Revolving Credit Facilities [Member] | Term Benchmark Borrowings [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	2%
Term Loan and Revolving Credit Facilities [Member] | Alternate Base Rate [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1%
Outstanding borrowings under credit facility	$ 4,500
Weighted average interest rate	5.30%
Average daily loan balance outstanding	$ 10,800
Term Loan and Revolving Credit Facilities [Member] | Alternate Base Rate [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	0%
Term Loan and Revolving Credit Facilities [Member] | Alternate Base Rate [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1%
Term Loan Facility [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 100,000
Term Loan Facility [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Number of extensions of maturity date | Installment	2
Term Loan Facility [Member] | First Four Years [Member]
Line of Credit Facility [Abstract]
Periodic payment amortization percentage	1.25%
Term Loan Facility [Member] | Fifth Year [Member]
Line of Credit Facility [Abstract]
Periodic payment amortization percentage	2.50%
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 400,000
Letter of Credit Sublimit [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	25,000
Swing Line Loans [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	25,000
Interest Rate Swap Agreement [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 100,000
Period of agreement	7 years
Outstanding borrowings under credit facility	$ 100,000
Interest Rate Swap Agreement [Member] | SOFR [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1.50%
Term of variable rate	1 month

Credit Facilities and Long-Te_5

Credit Facilities and Long-Term Debt, Polish Overdraft Facility (Details) - Polish Overdraft Facility [Member] zł in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2022 PLN (zł)	Jun. 30, 2022 USD ($)	Feb. 28, 2022 PLN (zł)	Feb. 28, 2022 USD ($)	Dec. 31, 2021 PLN (zł)	Dec. 31, 2021 USD ($)
Line of Credit Facility [Abstract]
Maximum borrowing capacity			zł 30	$ 6.7
Overdraft facility initiation date	Mar. 01, 2022
Overdraft facility renewal period	3 months
Overdraft facility cancellation period	30 days
Overdraft facility	zł 12.9	$ 2.9			zł 12.3	$ 3
WIBOR [Member]
Line of Credit Facility [Abstract]
Basis spread on variable rate	1.50%

Credit Facilities and Long-Te_6

Credit Facilities and Long-Term Debt, Maturities of Debt (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Maturities of Debt [Abstract]
Remainder of 2022		$ 5,454
2023		5,000
2024		5,000
2025		5,000
2026		7,500
2027		239,500
Total debt		267,454	$ 128,436
Less: current maturities		(63,954)	(128,415)
Long-term debt		203,500	21
Revolving Credit Facility [Member]
Maturities of Debt [Abstract]
Remainder of 2022		0
2023		0
2024		0
2025		0
2026		0
2027		164,500
Total debt		164,500	0
Less: current maturities		(56,000)
Long-term debt		108,500
Term Loan Facility [Member]
Maturities of Debt [Abstract]
Remainder of 2022		2,500
2023		5,000
2024		5,000
2025		5,000
2026		7,500
2027		75,000
Total debt		100,000	0
Less: current maturities		(5,000)
Long-term debt		95,000
Polish Overdraft Facility and Other Debt [Member]
Maturities of Debt [Abstract]
Remainder of 2022		2,954
2023		0
2024		0
2025		0
2026		0
2027		0
Total debt	[1]	2,954	$ 3,138
Less: current maturities		(2,954)
Long-term debt		$ 0
[1]Other includes borrowings under our Polish overdraft facility of Zloty 12.9 million (approximately $2.9 million) and Zloty 12.3 million (approximately $3 million) as of June 30, 2022 and December 31, 2021, respectively.

Credit Facilities and Long-Te_7

Credit Facilities and Long-Term Debt, Deferred Financing Costs (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Mar. 31, 2021
Deferred Financing Costs [Abstract]
Deferred financing costs	$ 2,355	$ 400
Write off of unamortized deferred financing costs	40,000
Deferred Finance Costs, Amortization [Abstract]
Remainder of 2022	257
2023	492
2024	479
2025	471
2026	465
2027	191
Total amortization	2,355	$ 400
Term Loan and Revolving Credit Facilities [Member]
Deferred Financing Costs [Abstract]
Deferred financing costs	1,900		$ 200
Deferred Finance Costs, Amortization [Abstract]
Total amortization	$ 1,900		$ 200

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income, Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2022	Jun. 30, 2022
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Balance attributable to SMP			$ 601,580
Other comprehensive income before reclassifications		$ (6,460)	(7,101)
Amounts reclassified from accumulated other comprehensive income		97	92
Other comprehensive income, net		(6,363)	(7,009)
Balance attributable to SMP		601,586	601,586
Reclassification out of Accumulated Other Comprehensive Income [Member]
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Unrecognized gain relating to change in fair value of cash flow interest rate hedge		137	137
Unrecognized gain relating to change in fair value of cash flow interest rate hedge, net of tax		102	102
Unrecognized gain, net of cash settlements payments		132	132
Unrecognized gain, net of cash settlements payments, net of tax		98	98
Accumulated Other Comprehensive Income (Loss) [Member]
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Balance attributable to SMP		(8,815)	(8,169)
Balance attributable to SMP		(15,178)	(15,178)
Foreign Currency Translation [Member]
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Balance attributable to SMP		(8,862)	(8,221)
Other comprehensive income before reclassifications		(6,464)	(7,105)
Amounts reclassified from accumulated other comprehensive income		0	0
Other comprehensive income, net		(6,464)	(7,105)
Balance attributable to SMP		(15,326)	(15,326)
Unrecognized Postretirement Benefit Costs (Credit) [Member]
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Balance attributable to SMP		47	52
Other comprehensive income before reclassifications		0	0
Amounts reclassified from accumulated other comprehensive income		(4)	(9)
Other comprehensive income, net		(4)	(9)
Balance attributable to SMP		43	43
Unrealized Derivative Gains (Losses) [Member]
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Balance attributable to SMP		0	0
Other comprehensive income before reclassifications	[1]	4	4
Amounts reclassified from accumulated other comprehensive income		101	101
Other comprehensive income, net		105	105
Balance attributable to SMP		$ 105	$ 105
[1]Consists of the unrecognized gain relating to the change in fair value of the cash flow interest rate hedge of $137,000 ($102,000, net of tax) in the three months and six months ended June 30, 2022, net of cash settlements payments of $132,000 ($98,000, net of tax) in the three months and six months ended June 30, 2022.

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income, Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Details About Accumulated Other Comprehensive Income Components [Abstract]
Interest expense		$ 1,821	$ 495	$ 2,626	$ 704
Other non-operating income, net		1,927	832	3,376	1,467
Earnings from continuing operations before taxes		27,999	37,262	55,558	67,012
Income tax expense		7,122	9,248	14,127	16,834
Net earnings attributable to SMP	[1]	19,126	$ 27,142	38,572	$ 48,142
Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Earnings from continuing operations before taxes		130		123
Income tax expense		33		31
Net earnings attributable to SMP		97		92
Unrealized Derivative Gains (Losses) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Interest expense	[2]	136		136
Unrecognized Postretirement Benefit Costs (Credit) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Other non-operating income, net	[3]	$ (6)		$ (13)
[1]Throughout this Form 10-Q, “SMP” refers to Standard Motor Products, Inc. and subsidiaries.[2]Unrecognized accumulated other comprehensive income (loss) related to the cash flow interest rate hedge is reclassified to earnings and reported as part of interest expense in our consolidated statements of operations when the interest payments on the underlying borrowings are recognized.[3]Unrecognized accumulated other comprehensive income (loss) related to our post retirement plans is reclassified to earnings and included in the computation of net periodic postretirement benefit costs, which are included in other non-operating income, net in our consolidated statements of operations (see Note 12, “Employee Benefits,” for additional information).

Stock-Based Compensation Plan_2

Stock-Based Compensation Plans (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) Type $ / shares shares	Jun. 30, 2021 USD ($)
Restricted and Performance Stock Grants [Abstract]
Number of types of restricted stock | Type	2
Additional Disclosures [Abstract]
Compensation expense, gross | $	$ 4,465	$ 4,381
Restricted Shares [Member] | Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Expiration of vesting period	3 years
Restricted Shares [Member] | Employees [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	5%
Restricted Shares [Member] | Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	0%
Restricted Shares [Member] | Directors [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	0%
Restricted Shares [Member] | Age 60 [Member] | Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	25%
Vesting period before reaching age limit	2 months
Restricted Shares [Member] | Age 63 [Member] | Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	25%
Vesting period before reaching age limit	2 months
Restricted Shares [Member] | Age 65 [Member] | Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	100%
Vesting period before reaching age limit	2 months
Performance-based Shares [Member]
Restricted and Performance Stock Grants [Abstract]
Measuring period for performance-based shares	3 years
Performance-based Shares [Member] | Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Expiration of vesting period	3 years
Restricted and Performance-Based Shares [Member]
Restricted and performance-based stock, shares [Roll Forward]
Beginning of period (in shares)	807,019
Granted (in shares)	8,125
Vested (in shares)	(13,300)
Forfeited (in shares)	(5,500)
End of period (in shares)	796,344
Restricted and performance-based stock, weighted average grant date fair value per share [Roll Forward]
Beginning of period (in dollars per share) | $ / shares	$ 34.92
Granted (in dollars per share) | $ / shares	33.81
Vested (in dollars per share) | $ / shares	39.80
Forfeited (in dollars per share) | $ / shares	42.24
End of period (in dollars per share) | $ / shares	$ 34.78
Additional Disclosures [Abstract]
Compensation expense, gross | $	$ 3,900	4,000
Compensation expense, net of tax | $	2,900	$ 3,000
Unamortized compensation expense | $	$ 13,300
Restricted and Performance-Based Shares [Member] | Employees [Member]
Additional Disclosures [Abstract]
Weighted average period of recognition for unrecognized compensation expense	4 years 2 months 12 days
Restricted and Performance-Based Shares [Member] | Directors [Member]
Additional Disclosures [Abstract]
Weighted average period of recognition for unrecognized compensation expense	9 months 21 days
Restricted and Performance-Based Shares [Member] | Executives and Directors [Member] | Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Post vesting holding period for restricted and performance shares issued	1 year
Restricted and Performance-Based Shares [Member] | Executives and Directors [Member] | Maximum [Member]
Restricted and Performance Stock Grants [Abstract]
Post vesting holding period for restricted and performance shares issued	2 years
2016 Omnibus Incentive Plan [Member] | Restricted and Performance-Based Shares [Member] | Maximum [Member]
Restricted and Performance Stock Grants [Abstract]
Shares authorized for issuance (in shares)	2,050,000

Employee Benefits (Details)

Employee Benefits (Details) $ in Millions	1 Months Ended	6 Months Ended
	Mar. 31, 2022 USD ($)	Jun. 30, 2022 Employee shares
Benefit Plan [Abstract]
Number of former union employees covered by the plan | Employee		14
Supplemental Executive Retirement Plan [Member]
Defined Contribution Pension and Other Postretirement Plans [Abstract]
Employer discretionary contribution amount | $	$ 0.8
Employee Stock Ownership Plan and Trust (ESOP) [Member]
Employee Stock Ownership Plan (ESOP), Debt Structure [Abstract]
Additional shares contributed to ESOP (in shares)		48,200
Shares released from trust (in shares)		48,200
Total remaining balance of shares in the ESOP (in shares)		200

Derivative Financial Instrume_2

Derivative Financial Instruments (Details) $ in Thousands	1 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)
Interest Rate Swap Agreement [Member]
Notional Disclosures [Abstract]
Derivative term of contract		7 years
Borrowings under credit agreement	$ 100,000	$ 100,000
Fixed interest rate	2.683%	2.683%
Derivative, credit spread adjustment percentage	0.10%
Interest Rate Swap Agreement [Member] | SOFR [Member]
Notional Disclosures [Abstract]
Term of variable rate		1 month
Margin on variable rate		1.50%
Interest Rate Swap [Member]
Notional Disclosures [Abstract]
Derivative term of contract	7 years
Derivative, notional amount	$ 100,000	$ 100,000
Derivative contract, maturity date		May 31, 2029
Derivative fair value	$ 137	$ 137

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value [Member] | LEVEL 1 [Member]
Fair Value, Net Asset (Liability) [Abstract]
Cash and cash equivalents	$ 14,186	$ 21,755
Deferred compensation	20,217	23,623
Short term borrowings	63,954	128,415
Long-term debt	203,500	21
Fair Value [Member] | LEVEL 2 [Member]
Fair Value, Net Asset (Liability) [Abstract]
Cash flow interest rate swap	137	0
Carrying Amount [Member] | LEVEL 1 [Member]
Fair Value, Net Asset (Liability) [Abstract]
Cash and cash equivalents	14,186	21,755
Deferred compensation	20,217	23,623
Short term borrowings	63,954	128,415
Long-term debt	203,500	21
Carrying Amount [Member] | LEVEL 2 [Member]
Fair Value, Net Asset (Liability) [Abstract]
Cash flow interest rate swap	$ 137	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net Earnings Attributable to SMP [Abstract]
Earnings from continuing operations		$ 20,792	$ 27,995	$ 41,354	$ 50,159
Loss from discontinued operations		(1,666)	(853)	(2,782)	(2,017)
Net earnings attributable to SMP	[1]	$ 19,126	$ 27,142	$ 38,572	$ 48,142
Basic Net Earnings Per Common Share Attributable to SMP [Abstract]
Earnings from continuing operations per common share (in dollars per share)		$ 0.96	$ 1.26	$ 1.89	$ 2.25
Loss from discontinued operations per common share (in dollars per share)		(0.08)	(0.04)	(0.13)	(0.09)
Net earnings per common share - Basic (in dollars per share)		$ 0.88	$ 1.22	$ 1.76	$ 2.16
Weighted average common shares outstanding (in shares)		21,757,998	22,198,545	21,867,644	22,257,922
Diluted Net Earnings Per Common Share Attributable to SMP [Abstract]
Earnings from continuing operations per common share (in dollars per share)		$ 0.93	$ 1.23	$ 1.85	$ 2.21
Loss from discontinued operations per common share (in dollars per share)		(0.07)	(0.03)	(0.13)	(0.09)
Net earnings per common share - Diluted (in dollars per share)		$ 0.86	$ 1.20	$ 1.72	$ 2.12
Weighted average common shares outstanding (in shares)		21,757,998	22,198,545	21,867,644	22,257,922
Plus incremental shares from assumed conversions [Abstract]
Dilutive effect of restricted stock and performance-based stock (in shares)		498,000	487,000	505,000	483,000
Weighted average common shares outstanding - Diluted (in shares)		22,255,642	22,686,384	22,372,702	22,741,171
Restricted and Performance-Based Shares [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)		268,000	239,000	262,000	258,000
[1]Throughout this Form 10-Q, “SMP” refers to Standard Motor Products, Inc. and subsidiaries.

Industry Segments (Details)

Industry Segments (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Segment	Jun. 30, 2021 USD ($)
Segment Reporting Information, Profit (Loss) [Abstract]
Number of reportable operating segments | Segment				2
Net sales	[1]	$ 359,412	$ 342,076	$ 682,243	$ 618,629
Operating Income (Loss)		27,893	36,925	54,808	66,249
Intersegment Revenues [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	0	0	0	0
Engine Management [Member] | Reportable Segments [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	241,873	233,216	481,130	445,234
Operating Income (Loss)		21,100	30,384	47,816	61,498
Engine Management [Member] | Intersegment Revenues [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	5,007	5,185	10,796	10,544
Temperature Control [Member] | Reportable Segments [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	114,432	106,471	195,753	168,944
Operating Income (Loss)		12,265	13,229	17,483	16,821
Temperature Control [Member] | Intersegment Revenues [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	2,831	3,125	6,047	4,972
All Other [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	3,107	2,389	5,360	4,451
Operating Income (Loss)		(5,472)	(6,688)	(10,491)	(12,070)
All Other [Member] | Intersegment Revenues [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	[1]	$ (7,838)	$ (8,310)	$ (16,843)	$ (15,516)
[1]Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

Net Sales (Details)

Net Sales (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	$ 359,412	$ 342,076	$ 682,243	$ 618,629
Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	280,120	272,828	519,777	495,208
OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	70,078	61,880	145,129	109,305
Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	9,214	7,368	17,337	14,116
Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	205,210	194,318	407,884	369,653
Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	39,102	40,588	77,922	78,947
Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	72,306	69,963	115,532	103,355
Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	42,794	37,207	80,905	66,674
United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	322,598	303,515	599,870	543,352
Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	15,237	14,454	30,946	28,416
Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	10,447	5,413	18,199	10,618
Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	6,771	6,575	15,196	12,787
Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	2,664	9,515	14,318	19,226
Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	1,695	2,604	3,714	4,230
Engine Management [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	241,873	233,216	481,130	445,234
Engine Management [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	173,361	172,676	338,486	337,309
Engine Management [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	59,984	53,776	126,541	94,821
Engine Management [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,528	6,764	16,103	13,104
Engine Management [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	202,823	192,486	403,177	366,152
Engine Management [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	39,050	40,730	77,953	79,082
Engine Management [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0	0
Engine Management [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0	0
Engine Management [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	214,444	202,274	416,267	383,375
Engine Management [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	6,257	7,433	14,397	16,007
Engine Management [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	10,378	5,252	18,085	10,401
Engine Management [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	6,666	6,460	15,007	12,607
Engine Management [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	2,634	9,447	14,126	19,082
Engine Management [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	1,494	2,350	3,248	3,762
Temperature Control [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	114,432	106,471	195,753	168,944
Temperature Control [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	103,652	97,763	175,931	153,448
Temperature Control [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	10,094	8,104	18,588	14,484
Temperature Control [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	686	604	1,234	1,012
Temperature Control [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0	0
Temperature Control [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0	0
Temperature Control [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	72,063	69,577	115,340	102,951
Temperature Control [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	42,369	36,894	80,413	65,993
Temperature Control [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	108,154	101,241	183,603	159,977
Temperature Control [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	5,873	4,632	11,189	7,958
Temperature Control [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	69	161	114	217
Temperature Control [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	105	115	189	180
Temperature Control [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	30	68	192	144
Temperature Control [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	201	254	466	468
Other [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	3,107	2,389	5,360	4,451
Other [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	3,107	2,389	5,360	4,451
Other [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	2,387	1,832	4,707	3,501
Other [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	52	(142)	(31)	(135)
Other [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	243	386	192	404
Other [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	425	313	492	681
Other [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	3,107	2,389	5,360	4,451
Other [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0	0
Other [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	$ 0	$ 0	$ 0	$ 0
[1]Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.[2]Other consists of the elimination of intersegment sales from our Engine Management and Temperature Control segments as well as sales from our Canadian business unit that does not meet the criteria of a reportable operating segment.  Intersegment wire and cable sales for the six months ended June 30, 2022, and for the three and six months ended June 30, 2021 exceeded third party sales from our Canadian business unit.

Commitments and Contingencies,

Commitments and Contingencies, Asbestos (Details) $ in Thousands	1 Months Ended	6 Months Ended		12 Months Ended	250 Months Ended
	Sep. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Claim	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2022 USD ($) Claim	Dec. 31, 2021 USD ($)	Aug. 31, 2021 USD ($)
Asbestos [Abstract]
Accrued asbestos liabilities		$ 48,025			$ 48,025	$ 52,698
Asbestos [Member]
Asbestos [Abstract]
Pending claims, approximate number | Claim		1,590			1,590
Payment for settled claims and awards related damages, including interest					$ 63,100
Decrease in range of possible loss from lower range				$ 2,100
Increase in range of possible loss from upper range				$ 1,100
Accrued asbestos liabilities	$ 60,900
Incremental pre-tax provision	$ 5,300
Asbestos [Member] | Minimum [Member]
Asbestos [Abstract]
Range of possible loss							$ 60,900
Asbestos [Member] | Maximum [Member]
Asbestos [Abstract]
Range of possible loss							100,200
Asbestos [Member] | Discontinued Operations [Member]
Asbestos [Abstract]
Total operating cash outflows related to discontinued operations		$ 9,500	$ 5,500
Asbestos [Member] | Discontinued Operations [Member] | Minimum [Member]
Asbestos [Abstract]
Range of possible loss							49,400
Asbestos [Member] | Discontinued Operations [Member] | Maximum [Member]
Asbestos [Abstract]
Range of possible loss							$ 99,300

Commitments and Contingencies_2

Commitments and Contingencies, Warranties (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Changes in product warranties [Roll forward]
Balance, beginning of period	$ 20,711	$ 16,948	$ 17,463	$ 17,663
Liabilities accrued for current year sales	30,295	25,162	52,921	45,339
Settlements of warranty claims	(27,240)	(23,897)	(46,618)	(44,789)
Balance, end of period	$ 23,766	$ 18,213	$ 23,766	$ 18,213