Standard Motor Products (SMP) 10-K 24 Feb 21 2020 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 22, 2021	Jun. 30, 2020
Cover [Abstract]
Entity Registrant Name	Standard Motor Products, Inc.
Entity Central Index Key	0000093389
Current Fiscal Year End Date	--12-31
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Document Transition Report	false
Entity File Number	001-04743
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 825,914,811
Entity Common Stock, Shares Outstanding		22,357,438

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	[1]	$ 1,128,588		$ 1,137,913		$ 1,092,051
Cost of sales		791,933		806,113		779,264
Gross profit		336,655		331,800		312,787
Selling, general and administrative expenses		224,670		234,715		231,336
Intangible asset impairment		2,600		0		0
Restructuring and integration expenses		464	[2]	2,585	[2]	4,510
Other income (expense), net		(26)		(5)		4,327
Operating income		108,895		94,495		81,268
Other non-operating income (expense), net		812		2,587		(411)
Interest expense		2,328		5,286		4,026
Earnings from continuing operations before taxes		107,379		91,796		76,831
Provision for income taxes		26,962		22,745		19,977
Earnings from continuing operations		80,417		69,051		56,854
Loss from discontinued operations, net of income tax benefit of $8,089, $3,912 and $4,866		(23,024)		(11,134)		(13,851)
Net earnings		$ 57,393		$ 57,917		$ 43,003
Net earnings per common share - Basic:
Earnings from continuing operations (in dollars per share)		$ 3.59		$ 3.09		$ 2.53
Discontinued operations (in dollars per share)		(1.02)		(0.50)		(0.62)
Net earnings per common share - Basic (in dollars per share)		2.57		2.59		1.91
Net earnings per common share - Diluted:
Earnings from continuing operations (in dollars per share)		3.52		3.03		2.48
Discontinued operations (in dollars per share)		(1.01)		(0.49)		(0.60)
Net earnings per common share - Diluted (in dollars per share)		2.51		2.54		1.88
Dividends declared per share (in dollars per share)		$ 0.50		$ 0.92		$ 0.84
Average number of common shares (in shares)		22,374,123		22,378,414		22,456,480
Average number of common shares and dilutive common shares (in shares)		22,825,885		22,818,451		22,931,723
[1]	Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.
[2]	Included in restructuring and integration costs in 2020 and 2019 is a $0.3 million and $0.4 million increase, respectively, in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location.  The environmental liability has been reclassed to accrued liabilities as of December 31, 2020 and 2019, respectively.

CONSOLIDATED STATEMENTS OF OP_2

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Income tax benefit	$ 8,089	$ 3,912	$ 4,866

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net earnings	$ 57,393	$ 57,917	$ 43,003
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	2,929	1,024	(5,473)
Pension and postretirement plans	(16)	(19)	(12)
Total other comprehensive income (loss), net of tax	2,913	1,005	(5,485)
Comprehensive income	$ 60,306	$ 58,922	$ 37,518

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 19,488	$ 10,372
Accounts receivable, less allowances for discounts and doubtful accounts of $5,822 and $5,212 in 2020 and 2019, respectively	198,039	126,640
Inventories	345,502	368,221
Unreturned customer inventories	19,632	19,722
Prepaid expenses and other current assets	15,875	15,602
Total current assets	598,536	540,557
Property, plant and equipment, net	89,105	89,649
Operating lease right-of-use assets	29,958	36,020
Goodwill	77,837	77,802
Other intangibles, net	54,004	64,861
Deferred incomes taxes	44,770	37,272
Investments in unconsolidated affiliates	40,507	38,858
Other assets	21,823	18,835
Total assets	956,540	903,854
CURRENT LIABILITIES:
Notes payable	10,000	52,460
Current portion of other debt	135	4,456
Accounts payable	100,018	92,535
Sundry payables and accrued expenses	47,078	38,819
Accrued customer returns	40,982	35,240
Accrued core liability	22,014	24,357
Accrued rebates	46,437	26,072
Payroll and commissions	35,938	26,649
Total current liabilities	302,602	300,588
Long-term debt	97	129
Noncurrent operating lease liabilities	22,450	28,376
Other accrued liabilities	25,929	20,837
Accrued asbestos liabilities	55,226	49,696
Total liabilities	406,304	399,626
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	105,084	102,742
Retained earnings	463,612	417,437
Accumulated other comprehensive income	(5,676)	(8,589)
Treasury stock - at cost (1,586,923 shares and 1,477,594 shares in 2020 and 2019, respectively)	(60,656)	(55,234)
Total stockholders' equity	550,236	504,228
Total liabilities and stockholders' equity	$ 956,540	$ 903,854

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Accounts receivable, allowances for discounts and doubtful accounts	$ 5,822	$ 5,212
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)	1,586,923	1,477,594

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 57,393	$ 57,917	$ 43,003
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	26,323	25,809	24,104
Amortization of deferred financing cost	228	225	333
Increase (decrease) to allowance for doubtful accounts	396	(295)	330
Increase to inventory reserves	5,962	4,858	3,978
Amortization of deferred gain on sale of buildings	0	0	(218)
Gain on sale of property, plant and equipment	0	0	(3,997)
Intangible asset impairment	2,600	0	0
Equity (income) loss from joint ventures	(820)	(2,865)	768	[1]
Employee stock ownership plan allocation	2,301	2,519	2,557
Stock-based compensation	8,101	6,917	7,998
(Increase) decrease in deferred income taxes	(8,334)	4,736	(10,046)
Increase in tax valuation allowance	864	358	22
Loss on discontinued operations, net of tax	23,024	11,134	13,851
Change in assets and liabilities:
(Increase) decrease in accounts receivable	(71,933)	2,789	5,351
(Increase) decrease in inventories	17,984	(17,901)	(30,199)
(Increase) decrease in prepaid expenses and other current assets	(370)	(8,296)	4,926
Increase (decrease) in accounts payable	7,428	(1,950)	16,894
Increase (decrease) in sundry payables and accrued expenses	40,651	(2,957)	(10,643)
Net changes in other assets and liabilities	(13,902)	(6,070)	1,246
Net cash provided by operating activities	97,896	76,928	70,258
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of and investments in businesses	0	(43,490)	(9,852)
Net proceeds from sale of Grapevine, Texas facility	0	4,801	0
Capital expenditures	(17,820)	(16,185)	(20,141)
Other investing activities	21	62	107
Net cash used in investing activities	(17,799)	(54,812)	(29,886)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (repayments) under line-of-credit agreements	(42,460)	8,771	(13,311)
Net borrowings (repayments) of other debt and lease obligations	(4,248)	(911)	1,115
Purchase of treasury stock	(13,482)	(10,738)	(14,886)
Increase (decrease) in overdraft balances	(108)	93	275
Payments of debt issuance costs	0	0	(460)
Dividends paid	(11,218)	(20,593)	(18,854)
Net cash used in financing activities	(71,516)	(23,378)	(46,121)
Effect of exchange rate changes on cash	535	496	(436)
Net increase (decrease) in cash and cash equivalents	9,116	(766)	(6,185)
CASH AND CASH EQUIVALENTS at beginning of year	10,372	11,138	17,323
CASH AND CASH EQUIVALENTS at end of year	19,488	10,372	11,138
Cash paid during the year for:
Interest	2,187	5,030	3,738
Income taxes	24,640	22,267	15,353
Noncash investing activity:
Receivable related to net proceeds from sale of Grapevine, Texas facility	$ 0	$ 0	$ 4,801
[1]	Year ended December 31, 2018 includes a noncash impairment charge of approximately $1.7 million related to our minority interest investment in Orange Electronic Co., Ltd.  See Note 9, “Investments in Unconsolidated Affiliates” for additional information.

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS 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	Cumulative Effect, Period of Adoption, Adjustment [Member]Common Stock [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Capital In Excess of Par Value [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Accumulated Other Comprehensive Income (Loss) [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Treasury Stock [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Adjustments Due to Adoption of ASU 2014-09 [Member]
Balance at beginning of period at Dec. 31, 2017	$ 47,872	$ 100,057	$ 357,153	$ (4,109)	$ (47,319)	$ 453,654
Balance at beginning of period (ASC 606 [Member]) at Dec. 31, 2017							$ 0	$ 0	$ (1,189)	$ 0	$ 0	$ (1,189)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	43,003	0	0	43,003
Other comprehensive income (loss), net of tax	0	0	0	(5,485)	0	(5,485)
Cash dividends paid	0	0	(18,854)	0	0	(18,854)
Purchase of treasury stock	0	0	0	0	(14,483)	(14,483)
Stock-based compensation	0	1,648	0	0	6,350	7,998
Employee Stock Ownership Plan	0	765	0	0		2,557
Employee Stock Ownership Plan					1,792
Balance at end of period at Dec. 31, 2018	47,872	102,470	380,113	(9,594)	(53,660)	467,201
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	57,917	0	0	57,917
Other comprehensive income (loss), net of tax	0	0	0	1,005	0	1,005
Cash dividends paid	0	0	(20,593)	0	0	(20,593)
Purchase of treasury stock	0	0	0	0	(10,738)	(10,738)
Stock-based compensation	0	(473)	0	0	7,390	6,917
Employee Stock Ownership Plan	0	745	0	0		2,519
Employee Stock Ownership Plan					1,774
Balance at end of period at Dec. 31, 2019	47,872	102,742	417,437	(8,589)	(55,234)	504,228
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	57,393	0	0	57,393
Other comprehensive income (loss), net of tax	0	0	0	2,913	0	2,913
Cash dividends paid	0	0	(11,218)	0	0	(11,218)
Purchase of treasury stock	0	0	0	0	(13,482)	(13,482)
Stock-based compensation	0	1,712	0	0	6,389	8,101
Employee Stock Ownership Plan	0	630	0	0		2,301
Employee Stock Ownership Plan					1,671
Balance at end of period at Dec. 31, 2020	$ 47,872	$ 105,084	$ 463,612	$ (5,676)	$ (60,656)	$ 550,236

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY [Abstract]
Cash dividends paid (in dollars per share)	$ 0.50	$ 0.92	$ 0.84

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Principles of Consolidation Standard Motor Products, Inc. and subsidiaries (referred to hereinafter in these notes to the consolidated financial statements as “we,” “us,” “our” or the “Company”) is engaged in the manufacture and distribution of replacement parts for motor vehicles in the automotive aftermarket industry with a complementary focus on the heavy duty, industrial equipment and original equipment service markets. The consolidated financial statements include our accounts and all domestic and international companies in which we have more than a 50% equity ownership, except in instances where the minority shareholder maintains substantive participating rights, in which case we follow the equity method of accounting. 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. Use of Estimates The preparation of consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our consolidated financial statements, and the reported amounts of revenue and expenses during the reporting periods. We have made a number of estimates and assumptions in the preparation of these consolidated financial statements. We can give assurances that actual results will not differ from those estimates. Although we do not believe that there is a reasonable likelihood that there will be a material change in the future estimates, or in the assumptions that we use in calculating the estimates, the uncertain future effects, if any, of the COVID pandemic, and other unforeseen changes in the industry, or business, could materially impact the estimates, and may have a material adverse effect on our business, financial condition and results of operations. Some of the more significant estimates include allowances for doubtful accounts, cash discounts, valuation of inventory, valuation of long-lived assets, goodwill and other intangible assets, depreciation and amortization of long-lived assets, product liability exposures, asbestos, environmental and litigation matters, valuation of deferred tax assets, share based compensation and sales returns and other allowances. Reclassification Certain prior period amounts in the accompanying consolidated financial statements and related notes have been reclassified to conform to the 2020 presentation. Cash and Cash Equivalents We consider all highly liquid investments purchased with a maturity of three months or less to be cash equivalents. Allowance for Doubtful Accounts and Cash Discounts We do not generally require collateral for our trade accounts receivable. Accounts receivable have been reduced by an allowance for amounts that may become uncollectible in the future. These allowances are established based on a combination of write-off history, supportable forecasts, aging analysis, and specific account evaluations. When a receivable balance is known to be uncollectible, it is written off against the allowance for doubtful accounts. Cash discounts are provided based on an overall average experience rate applied to qualifying accounts receivable balances. Inventories Inventories are valued at the lower of cost and net realizable value. Cost is determined on the first-in first-out basis. Where appropriate, standard cost systems are utilized for purposes of determining cost; the standards are adjusted as necessary to ensure they approximate actual costs. Estimates of lower of cost and net realizable value of inventory are determined by comparing the actual cost of the product to the estimated selling prices in the ordinary course of business less reasonably predictable costs of completion, disposal and transportation of the inventory. We also evaluate inventories on a regular basis to identify inventory on hand that may be obsolete or in excess of current and future projected market demand. For inventory deemed to be obsolete, we provide a reserve on the full value of the inventory. Inventory that is in excess of current and projected use is reduced by an allowance to a level that approximates our estimate of future demand. Future projected demand requires management judgment and is based upon (a) our review of historical trends and (b) our estimate of projected customer specific buying patterns and trends in the industry and markets in which we do business. Using rolling twelve month historical information, we estimate future demand on a continuous basis. As such, the historical volatility of such estimates has been minimal. We maintain provisions for inventory reserves of and as of December 31, 2020 and 2019 respectively. We utilize cores (used parts) in our remanufacturing processes for air conditioning compressors, diesel injectors, and diesel pumps. The production of air conditioning compressors, diesel injectors, and diesel pumps involves the rebuilding of used cores, which we acquire either in outright purchases from used parts brokers, or from returns pursuant to an exchange program with customers. Under such exchange programs, at the time of sale of air conditioning compressors, diesel injectors, and diesel pumps, we estimate the core expected to be returned from the customer and record the estimated return as unreturned customer inventory. In addition, many of our customers can return inventory to us based upon customer warranty and overstock arrangements within customer specific limits. At the time products are sold, we accrue a liability for product warranties and overstock returns and record as unreturned customer inventory our estimate of anticipated customer returns. Estimates are based upon historical information on the nature, frequency and probability of the customer return. Unreturned core, warranty and overstock customer inventory is recorded at standard cost. Revision to these estimates is made when necessary, based upon changes in these factors. We regularly study trends of such claims. Property, Plant and Equipment Property, plant and equipment are recorded at historical cost and are depreciated using the straight-line method of depreciation over the estimated useful lives as follows: Estimated Life Buildings 25 to 33-1/2 Building improvements 10 to 25 years Machinery and equipment 5 to years Tools, dies and auxiliary equipment 3 to years Furniture and fixtures 3 to years Leasehold improvements are depreciated over the shorter of the estimated useful life or the term of the lease. Costs related to maintenance and repairs which do not prolong the assets useful lives are expensed as incurred. We assess our property, plant and equipment to be held and used for impairment when indicators are present that the carrying value may not be recoverable. Leases We determine if an arrangement is a lease at inception. For operating leases, we include and report operating lease right-of-use (“ROU”) assets, sundry payables and accrued expenses, and noncurrent operating lease liabilities on our consolidated balance sheet for leases with a term longer than twelve months. Finance leases are reported on our consolidated balance sheets in property, plant and equipment, current portion of other debt, and long-term debt. Operating lease ROU assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the total lease payments over the lease term. Our ROU assets represent the right to use an underlying leased asset over the existing lease term, and the corresponding lease liabilities represent our obligation to make lease payments arising from the lease agreement. As most of our leases do not provide for an implicit rate, we use our secured incremental borrowing rate based on the information available when determining the present value of our lease payments. Our lease terms may include options to terminate, or extend, our lease when it is reasonably certain that we will execute the option. Lease agreements may contain lease and non-lease components, which are generally accounted for separately. Operating lease expense is recognized on a straight-line basis over the lease term. Valuation of Long-Lived and Intangible Assets and Goodwill At acquisition, we estimate and record the fair value of purchased intangible assets, which primarily consist of customer relationships, trademarks and trade names, patents and non-compete agreements. The fair values of these intangible assets are estimated based on our assessment. Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations. Goodwill and certain other intangible assets having indefinite lives are not amortized to earnings, but instead are subject to periodic testing for impairment. Intangible assets determined to have definite lives are amortized over their remaining useful lives. We assess the impairment of long-lived assets, identifiable intangibles assets and goodwill whenever events or changes in circumstances indicate that the carrying value may not be recoverable. With respect to goodwill and identifiable intangible assets having indefinite lives, we test for impairment on an annual basis or in interim periods if an event occurs or circumstances change that may indicate the fair value is below its carrying amount. Factors we consider important, which could trigger an impairment review, include the following: (a) significant underperformance relative to expected historical or projected future operating results; (b) significant changes in the manner of our use of the acquired assets or the strategy for our overall business; and (c) significant negative industry or economic trends. We review the fair values using the discounted cash flows method and market multiples. When performing our evaluation of goodwill for impairment, if we conclude qualitatively that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then a quantitative impairment test would not be required. If we are unable to reach this conclusion, then we would perform a goodwill quantitative impairment test. In performing the quantitative test, the fair value of the reporting unit is compared to its carrying amount. A charge for impairment is recognized by the amount by which the reporting unit’s carrying amount exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. Identifiable intangible assets having indefinite lives are reviewed for impairment on an annual basis using a methodology similar with that used to evaluate goodwill. Intangible assets having definite lives and other long-lived assets are reviewed for impairment whenever events such as product discontinuance, plant closures, product dispositions or other changes in circumstances indicate that the carrying amount may not be recoverable. In reviewing intangible assets having definite lives and other long-lived assets for impairment, we compare the carrying value of such assets to the estimated undiscounted future cash flows expected from the use of the assets and their eventual disposition. When the estimated undiscounted future cash flows are less than their carrying amount, an impairment loss is recognized equal to the difference between the assets fair value and their carrying value. There are inherent assumptions and estimates used in developing future cash flows requiring our judgment in applying these assumptions and estimates to the analysis of identifiable intangibles and long-lived asset impairment including projecting revenues, interest rates, tax rates and the cost of capital. Many of the factors used in assessing fair value are outside our control and it is reasonably likely that assumptions and estimates will change in future periods. These changes can result in future impairments. In the event our planning assumptions were modified resulting in impairment to our assets, we would be required to include an expense in our statement of operations, which could materially impact our business, financial condition and results of operations. Foreign Currency Translation Assets and liabilities of our foreign operations are translated into U.S. dollars at year-end exchange rates. Income statement accounts are translated using the average exchange rates prevailing during the year. The resulting translation adjustments are recorded as a separate component of accumulated other comprehensive income (loss) and remains there until the underlying foreign operation is liquidated or substantially disposed of. Foreign currency transaction gains or losses are recorded in the statement of operations under the caption “other non-operating income (expense), net.” Revenue Recognition We derive our revenue primarily from sales of replacement parts for motor vehicles from both our Engine Management and Temperature Control Segments. We recognize revenues when our performance obligation has been satisfied and the control of products has been transferred to a customer which typically occurs upon shipment. Revenue is measured as the amount of consideration we expect to receive in exchange for the transfer of goods or providing services. The amount of consideration we receive and revenue we recognize depends on the marketing incentives, product warranty and overstock returns we offer to our customers. For certain of our sales of remanufactured products, we also charge our customers a deposit for the return of a used core component which we can use in our future remanufacturing activities. Such deposit is not recognized as revenue at the time of the sale but rather carried as a core liability. At the same time, we estimate the core expected to be returned from the customer and record the estimated return as unreturned customer inventory. The liability is extinguished when a core is actually returned to us, or at period end when we estimate and recognize revenue for the core deposits not expected to be returned. We estimate and record provisions for cash discounts, quantity rebates, sales returns and warranties in the period the sale is recorded, based upon our prior experience and current trends. Significant management judgments and estimates must be made and used in estimating sales returns and allowances relating to revenue recognized in any accounting period. Product Warranty and Overstock Returns Many of our products carry a warranty ranging from a -day limited warranty to a lifetime limited warranty, which generally covers defects in materials or workmanship and failure to meet industry published specifications and/or the result of installation error. In addition to warranty returns, we also permit our customers to return new, undamaged products to us within customer-specific limits (which are generally limited to a specified of their annual purchases from us) in the event that they have overstocked their inventories. At the time products are sold, we accrue a liability for product warranties and overstock returns as a of sales based upon estimates established using historical information on the nature, frequency and average cost of the claim and the probability of the customer return. At the same time, we record an estimate of anticipated customer returns as unreturned customer inventory. Significant judgments and estimates must be made and used in connection with establishing the sales returns and other allowances in any accounting period. Revision to these estimates is made when necessary, based upon changes in these factors. We regularly study trends of such claims. New Customer Acquisition Costs New customer acquisition costs refer to arrangements pursuant to which we incur change-over costs to induce a new customer to switch from a competitor’s brand. In addition, change-over costs include the costs related to removing the new customer’s inventory and replacing it with our inventory commonly referred to as a stock lift. New customer acquisition costs are recorded as a reduction to revenue when incurred. Selling, General and Administration Expenses Selling, general and administration expenses include shipping costs and advertising, which are expensed as incurred. Shipping and handling charges, as well as freight to customers, are included in distribution expenses as part of selling, general and administration expenses. Deferred Financing Costs Deferred financing costs represent costs incurred in conjunction with our debt financing activities. Deferred financing costs related to our revolving credit facility are capitalized and amortized over the life of the related financing arrangement. If the debt is retired early, the related unamortized deferred financing costs are written off in the period the debt is retired and are recorded in the statement of operations under the caption other non-operating income (expense), net. Accounting for Income Taxes Income taxes are calculated using the asset and liability method. Deferred tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities, as measured by the current enacted tax rates. We maintain valuation allowances when it is more likely than not that all or a portion of a deferred asset will not be realized. The valuation allowance is intended to provide for the uncertainty regarding the ultimate utilization of our U.S. foreign tax credit carryovers and foreign net operating loss carryovers. In determining whether a valuation allowance is warranted, we consider all positive and negative evidence and all sources of taxable income such as prior earnings history, expected future earnings, carryback and carryforward periods and tax strategies to estimate if sufficient future taxable income will be generated to realize the deferred tax asset. The assessment of the adequacy of our valuation allowance is based on our estimates of taxable income by jurisdiction in which we operate and the period over which our deferred tax assets will be recoverable. In the event that actual results differ from these estimates, or we adjust these estimates in future periods for current trends or expected changes in our estimating assumptions, we may need to modify the level of valuation allowance which could materially impact our business, financial condition and results of operations. The valuation allowance of as of December 31, 2020 is intended to provide for the uncertainty regarding the ultimate realization of our U.S. foreign tax credit carryovers and foreign net operating loss carryovers. Based on these considerations, we believe it is more likely than not that we will realize the benefit of the net deferred tax asset of as of December 31, 2020 which is net of the remaining valuation allowance. Tax benefits are recognized for an uncertain tax position when, in management's judgment, it is more likely than not that the position will be sustained upon examination by a taxing authority. For a tax position that meets the more-likely-than-not recognition threshold, the tax benefit is measured as the largest amount that is judged to have a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority. The liability associated with unrecognized tax benefits is adjusted periodically due to changing circumstances and when new information becomes available. Such adjustments are recognized entirely in the period in which they are identified. During the years ended December 31, 2020, 2019 and 2018 we did not establish a liability for uncertain tax positions. Environmental Reserves We are subject to various U.S. Federal and state and local environmental laws and regulations and are involved in certain environmental remediation efforts. We estimate and accrue our liabilities resulting from such matters based upon a variety of factors including the assessments of environmental engineers and consultants who provide estimates of potential liabilities and remediation costs. Such estimates are not discounted to reflect the time value of money due to the uncertainty in estimating the timing of the expenditures, which may extend over several years. Potential recoveries from insurers or other third parties of environmental remediation liabilities are recognized independently from the recorded liability, and any asset related to the recovery will be recognized only when the realization of the claim for recovery is deemed probable. Asbestos Litigation In evaluating our potential asbestos-related liability, we use an actuarial study that is prepared by a leading actuarial firm with expertise in assessing asbestos-related liabilities. We evaluate the estimate of the range of undiscounted liability to determine which amount to accrue. 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 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. Legal costs are expensed as incurred. Loss Contingencies We have loss contingencies, for such matters as legal claims and legal proceedings. Establishing loss reserves for these matters requires estimates, judgment of risk exposure and ultimate liability. We record provisions when the liability is considered probable and reasonably estimable. Significant judgment is required for both the determination of probability and the determination as to whether an exposure can be reasonably estimated. We maintain an ongoing monitoring and identification process to assess how the activities are progressing against the accrued estimated costs. As additional information becomes available, we reassess our potential liability related to these matters. Adjustments to the liabilities are recorded in the statement of operations in the period when additional information becomes available. Such revisions of the potential liabilities could have a material adverse effect on our business, financial condition or results of operations. Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentrations of credit risk consist principally of cash investments and accounts receivable. We place our cash investments with high quality financial institutions and limit the amount of credit exposure to any one institution. Although we are directly affected by developments in the vehicle parts industry, management does not believe significant credit risk exists. With respect to accounts receivable, such receivables are primarily from warehouse distributors and major retailers in the automotive aftermarket industry located in the U.S. We perform ongoing credit evaluations of our customers’ financial conditions. A significant portion of our net sales are concentrated from our largest individual customers. For further information on net sales to our largest customers and our concemtration our customer risk, see Note , “Industry Segment and Geographic Data.” Foreign Cash Balances Substantially all of the cash and cash equivalents, including foreign cash balances, at December 31, 2020 and 2019 were uninsured. Foreign cash balances at December 31, 2020 and 2019 were and , respectively. Recently Issued Accounting Pronouncements Standards that were adopted Standard Description Date of adoption Effects on the financial statements or other significant matters ASU 2017-04 Simplifying the Test for Goodwill Impairment This standard simplifies the accounting for goodwill impairment. ASU 2017-04 removes Step 2 of the test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. January 1, 2020 We applied the new standard in the fourth quarter of 2020 when we performed our annual impairment test of goodwill. In performing our impairment test, we concluded that the fair value for each of our reporting units exceeded its carrying value and, as such, the adoption of the new standard did not impact the manner in which we performed the 2020 goodwill quantitative impairment test. ASU 2016-13 Financial Instruments – Credit Losses This standard creates a single model to measure impairment of financial assets, which includes trade accounts receivable. An estimate of expected credit losses on trade accounts receivable over their contractual life will be required to be recorded at inception, based on historical information, current conditions, and reasonable and supportable forecasts. January 1, 2020 The adoption of the standard did not have a material impact on the manner in which we estimate our allowance for doubtful accounts on trade accounts receivable, or on our consolidated financial statements. Standards that are not yet adopted as of December 31, 2020 The following table provides a brief description of recently issued accounting pronouncements that have not yet been adopted as of December 31, 2020 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 ASU 2019-12 Income Taxes (Topic 740 ) : Simplifying the Accounting for Income Taxes This standard is intended to simplify the accounting for income taxes by removing certain ASC Topic 740 exceptions in performing intra-period tax allocations among income statement components, in calculating certain deferred tax liabilities related to outside basis differences, and in calculating income taxes in interim periods with year-to-date losses. In addition, this standard is also intended to improve consistency and add simplification by clarifying and amending the reporting of franchise taxes and other taxes partially based on income, the recognition of deferred income taxes related to the step-up in tax basis goodwill, and the reporting in interim periods of the recognition of the enactment of tax laws or rate changes. January 1, 2021, with early adoption permitted The new standard clarifies the accounting for income taxes in certain technical areas that will not impact all companies. We anticipate that the adoption of the technical clarifications in this standard will not materially impact our accounting for income taxes, our consolidated financial statements and related disclosures. The new standard can be applied on a prospective basis in certain instances and in other instances on a retrospective or modified retrospective basis. ASU 2020-04 Reference Rate Reform (Topic 848 ) : Facilitation of the Effects of Reference Rate Reform on Financial Reporting This 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. Effective 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 revolving credit facility and 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	12 Months Ended
	Dec. 31, 2020
Business Acquisitions and Investments [Abstract]
Business Acquisitions and Investments	2. Business Acquisitions and Investments 2019 Business Acquisition and Investment Jiangsu Che Yijia New Energy Technology Co., Ltd. Equity Investment In August 2019, we acquired an approximate 29% minority interest in Jiangsu Che Yijia New Energy Technology Co., Ltd. (“CYJ”) for approximately $5.1 million. Our investment in CYJ was funded through borrowings under our revolving credit facility with JPMorgan Chase Bank, N.A. CYJ is a manufacturer of air conditioning compressors for electric vehicles and is located in China. Our minority interest in CYJ is accounted for using the equity method of accounting. Pollak Business of Stoneridge, Inc. Acquisition In April 2019, we acquired certain assets and liabilities of the Pollak business of Stoneridge, Inc. for approximately $40 million, subject to post-closing adjustments. In May 2019, the post-closing adjustments were finalized at $1.6 million, reducing the purchase price to $38.4 million. The acquisition was funded through borrowings under our revolving credit facility with JPMorgan Chase Bank, N.A. Stoneridge’s Pollak business had manufacturing and distribution facilities in Canton, Massachusetts, El Paso, Texas, and Juarez, Mexico, and distributed a range of engine management products including sensors, switches, and connectors. The acquisition, reported as part of our Engine Management Segment, enhanced our growth opportunities in the OE/OES, heavy duty and commercial vehicle markets and added to our existing expertise in aftermarket distribution, product management and service. We have not acquired any of the Pollak facilities or employees, and have relocated all production to our existing facilities. 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 $ 38,427 Assets acquired and liabilities assumed: Inventory $ 3,331 Property, plant and equipment, net 45 Intangible assets 24,650 Goodwill 10,401 Net assets acquired $ 38,427 Intangible assets acquired of $24.7 million consist of customer relationships related to the acquired OE/OES business of $17.2 million that will be amortized on a straight-line basis over the estimated useful life of 10 years; customer relationships related to the acquired aftermarket business of $7.2 million that will be amortized on a straight-line basis over the estimated useful life of 15 years; a trademark of $0.2 million that will be amortized on a straight-line basis over the estimated useful life of 10 years; and a non-compete agreement of $0.1 million that will be amortized on a straight-line basis over the estimated useful life of 5 years. Goodwill of $10.4 million was allocated to the Engine Management Segment and is deductible for income tax purposes. The goodwill reflects relationships, business specific knowledge and the replacement cost of an assembled workforce associated with personal reputations, as well as the value of expected synergies. Incremental net sales from the acquired Pollak business were $ million for the three months ended March 31, 2020, and were included in our consolidated statements of operations for the year ended December 31, 2020

Restructuring and Integration E

Restructuring and Integration Expense	12 Months Ended
	Dec. 31, 2020
Restructuring and Integration Expense [Abstract]
Restructuring and Integration Expense	3. 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 and for the years ended December 31, 2020 and 2019, consisted of the following (in thousands): Workforce Reduction Other Exit Costs Total Exit activity liability at December 31, 2018 $ 742 $ — $ 742 Restructuring and integration costs: Amounts provided for during 2019 (1) — 2,585 2,585 Cash payments (406 ) (1,688 ) (2,094 ) Reclassification of environmental liability (1) — (386 ) (386 ) Reclassification of inventory reserves — (511 ) (511 ) Exit activity liability at December 31, 2019 $ 336 $ — $ 336 Restructuring and integration costs: Amounts provided for during 2020 (1) — 464 464 Cash payments (157 ) (214 ) (371 ) Reclassification of environmental liability (1) — (250 ) (250 ) Exit activity liability at December 31, 2020 $ 179 $ — $ 179 (1) Included in restructuring and integration costs in 2020 and 2019 is a $ million and $ million increase, respectively, in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location. The environmental liability has been reclassed to accrued liabilities as of December 31, 2020 and 2019 , respectively Restructuring Costs Plant Rationalization Program In February 2016, in connection with our ongoing efforts to improve operating efficiencies and reduce costs, we implemented a plant rationalization initiative. As part of the plant rationalization, all of our Grapevine, Texas production activities have been relocated to facilities in Greenville, South Carolina and Reynosa, Mexico; certain production activities at our Greenville, South Carolina facility were moved to our facility in Bialystok, Poland; certain service functions were relocated from Grapevine, Texas to our administrative offices in Lewisville, Texas; and our vacated Grapevine, Texas facility was sold in December 2018 at a net gain of $3.9 million. The net proceeds from the sale of the property of $4.8 million was received in January 2019 and was used to reduce borrowings under our revolving credit facility. The gain on the sale of the property is included in other income (expense), net in operating income on our consolidated statement of operations. The Plant Rationalization Program has been completed. Cash payments made of $111,000 during the year ended December 31, 2020, and the remaining aggregate liability related to the program as of December 31, 2020 of $65,000 consists of severance payments to former Temperature Control employees. Orlando Plant Rationalization Program In January 2017, to further our ongoing efforts to improve operating efficiencies and reduce costs, we implemented a plant rationalization initiative at our Orlando, Florida facility. As part of the initiative, all of our Orlando, Florida production activities were moved to our facility in Independence, Kansas; certain production activities at our Independence, Kansas facility were moved to our facility in Reynosa, Mexico; and our Orlando, Florida facility was closed. The Orlando Plant Rationalization Program has been completed. Cash payments made of $46,000 during the year ended December 31, 2020, and the remaining aggregate liability related to the program as of December 31, 2020 of $114,000 consists of severance payments to former Engine Management employees. Integration Costs Pollak Relocation In connection with our April 2019 acquisition of certain assets and liabilities of the Pollak business of Stoneridge, Inc., we incurred certain integration expenses in connection with the relocation of certain inventory, machinery, and equipment from Pollak’s distribution and manufacturing facilities in El Paso, Texas, Canton, Massachusetts, and Juarez, Mexico, to our existing facilities in Disputanta, Virginia, Reynosa, Mexico and Independence, Kansas. The Pollak Relocation has been completed. Integration expense recognized and cash payments made of $214,000 during the year ended December 31, 2020 related to residual relocation activities in our Engine Management segment. There is no remaining aggregate liability related to the Pollak Relocation as of December 31, 2020.

Sale of Receivables

Sale of Receivables	12 Months Ended
	Dec. 31, 2020
Sale of Receivables [Abstract]
Sale of Receivables	4. 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 Pursuant to these agreements, we sold $695.1 million and $719 million of receivables for the years ended December 31, 2020 and 2019, respectively, which was reflected as a reduction of accounts receivable in the consolidated balance sheet at the time of sale. A charge in the amount of $12.2 million, $22 million and $24.4 million related to the sale of receivables is included in selling, general and administrative expenses in our consolidated statements of operations for the years ended December 31, 2020, 2019 and 2018, respectively. 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, as it is a component of the discount rate applicable to each arrangement. If the LIBOR 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	12 Months Ended
	Dec. 31, 2020
Inventories [Abstract]
Inventories	5. Inventories December 31, 2020 December 31, 2019 (In thousands) Finished goods $ 225,523 $ 241,472 Work-in-process 10,711 11,138 Raw materials 109,268 115,611 Subtotal 345,502 368,221 Unreturned customer inventories 19,632 19,722 Total inventories $ 365,134 $ 387,943

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	6. Property, Plant and Equipment December 31, 2020 2019 (In thousands) Land, buildings and improvements $ 38,833 $ 38,299 Machinery and equipment 148,578 142,531 Tools, dies and auxiliary equipment 60,102 54,843 Furniture and fixtures 30,347 30,470 Leasehold improvements 11,948 11,711 Construction-in-progress 13,691 11,271 Total property, plant and equipment 303,499 289,125 Less accumulated depreciation 214,394 199,476 Total property, plant and equipment, net $ 89,105 $ 89,649 Depreciation expense was $17.8 million in 2020, $17.4 million in 2019 and $16.1 million in 2018.

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	7. Leases Quantitative Lease Disclosures 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 , some of which may include or more renewal options. We have included the renewal option for 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 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 : December 31, Balance Sheet Information 2020 2019 Assets Operating lease right-of-use assets $ 29,958 $ 36,020 Liabilities Sundry payables and accrued expenses $ 8,719 $ 8,739 Noncurrent operating lease liabilities 22,450 28,376 Total operating lease liabilities $ 31,169 $ 37,115 Weighted Average Remaining Lease Term Operating leases 5 Years 5.6 Years Weighted Average Discount Rate Operating leases 3.6 % 3.7 % Year Ended, December 31, Expense and Cash Flow Information 2020 2019 Lease Expense Operating lease expense (a) $ 9,203 $ 8,940 Supplemental Cash Flow Information Cash Paid for the amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9,087 $ 8,758 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 2,986 $ 4,663 (a) Excludes expenses of approximately $2.5 million and 2.4 million for the years ended December 31, 2020 and 2019, 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 December 31, 2020, we are obligated to make minimum lease payments through 2028, under operating leases, which are as follows (in thousands): 2021 $ 8,945 2022 7,231 2023 5,819 2024 3,931 2025 2,960 Thereafter 5,551 Total lease payments $ 34,437 Less: Interest (3,268 ) Present value of lease liabilities $ 31,169

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Other Intangible Assets [Abstract]
Goodwill and Other Intangible Assets	8. Goodwill and Other Intangible Assets Goodwill We assess the impairment of long ‑ When performing our evaluation of goodwill for impairment, if we conclude qualitatively that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then a quantitative impairment test would not be required. If we are unable to reach this conclusion, then we would perform a goodwill quantitative impairment test. In performing the quantitative test, the fair value of the reporting unit is compared to its carrying amount. A charge for impairment is recognized by the amount by which the reporting unit’s carrying amount exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. In light of the recent loss of business in our Engine Management product line from a large retail customer, we elected to bypass the qualitative assessment at December 31, 2020 and have decided to perform a quantitative impairment test for goodwill at both the Engine Management and Temperature Control reporting units. The fair values of the Engine Management and Temperature Control reporting units were determined based upon the Income Approach, which estimates the fair value based on future discounted cash flows, and the Market Approach, which estimates the fair value based on market prices of comparable companies. We base our fair value estimates on projected financial information which we believe to be reasonable. We also considered our total market capitalization as of December 31, 2020. Our December 31, 2020 annual goodwill impairment analysis did not result in an impairment charge as it was determined that the fair values of our Engine Management and Temperature Control reporting units were in excess of their carrying amounts. While the fair values exceed the carrying amounts at the present time and we do not believe that impairments are probable, we will need to maintain the ongoing performance of the business at current projected levels in future periods to sustain their carrying values. Changes in the carrying values of goodwill by operating segment during the years ended December 31, 2020 and 2019 are as follows (in thousands): Engine Management Temperature Control Total Balance as of December 31, 2018: Goodwill $ 91,539 $ 14,270 $ 105,809 Accumulated impairment losses (38,488 ) — (38,488 ) $ 53,051 $ 14,270 $ 67,321 Activity in 2019 Acquisition of Pollak Business of Stoneridge, Inc. 10,401 — 10,401 Foreign currency exchange rate change 80 — 80 Balance as of December 31, 2019: Goodwill 102,020 14,270 116,290 Accumulated impairment losses (38,488 ) — (38,488 ) $ 63,532 $ 14,270 $ 77,802 Activity in 2020 Foreign currency exchange rate change 35 — 35 Balance as of December 31, 2020: Goodwill 102,055 14,270 116,325 Accumulated impairment losses (38,488 ) — (38,488 ) $ 63,567 $ 14,270 $ 77,837 Acquired Intangible Assets Acquired identifiable intangible assets as of December 31, 2020 and 2019 consist of: December 31, 2020 2019 (In thousands) Customer relationships $ 111,701 $ 111,692 Trademarks and trade names 6,980 6,980 Non-compete agreements 3,272 3,276 Patents 723 723 Supply agreements 800 800 Leaseholds 160 160 Total acquired intangible assets 123,636 123,631 Less accumulated amortization (1) (70,221 ) (59,431 ) Net acquired intangible assets $ 53,415 $ 64,200 (1) Applies to all intangible assets, except for related trademarks and trade names totaling $2.6 million and $5.2 million as of December 31, 2020 and 2019, respectively, which have indefinite useful lives and, as such, are not being amortized. In December 2020, a large retail customer informed us of its decision to pursue a private brand strategy for its engine management product line. As a result of this development, we anticipate that revenues sold under the BWD trademark will be significantly reduced and uncertain beyond the first quarter of 2021. In connection with the decision, we recorded an impairment charge of $2.6 million in 2020. Total amortization expense for acquired intangible assets was $8.2 million for the year ended December 31, 2020, Other Intangible Assets Other intangible assets include computer software. Computer software as of December 31, 2020 and 2019 totaled $17 million and , respectively Fully amortized computer software, no longer in use, of $ million was written-off during the year ended December 31, 2020.

Investments in Unconsolidated A

Investments in Unconsolidated Affiliates	12 Months Ended
	Dec. 31, 2020
Investments in Unconsolidated Affiliates [Abstract]
Investments in Unconsolidated Affiliates	9. Investments in Unconsolidated Affiliates December 31, 2020 2019 (In thousands) Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. $ 18,869 $ 18,099 Foshan FGD SMP Automotive Compressor Co. Ltd 15,036 13,633 Foshan Che Yijia New Energy Technology Co., Ltd. 4,174 4,883 Orange Electronic Co. Ltd 2,428 2,243 Total $ 40,507 $ 38,858 Investment in Foshan Che Yijia New Energy Technology Co., Ltd. In August we acquired an approximate minority interest in Foshan Che Yijia New Energy Technology Co., Ltd. (“CYJ”) for approximately . Our investment in CYJ was funded through borrowings under our revolving credit facility with JPMorgan Chase, N.A. CYJ is a manufacturer of automotive electric air conditioning compressors and is located in China. Our minority interest in CYJ is accounted for using the equity method of accounting. We did not make any purchases from CYJ from the date of acquisition through December Investment in Foshan FGD SMP Automotive Compressor Co. Ltd. In November 2017, we formed Foshan FGD SMP Automotive Compressor Co., Ltd., a 50/50 joint venture with Foshan Guangdong Automotive Air Conditioning Co., Ltd. (“FGD”), a China-based manufacturer of automotive belt driven air conditioning compressors. We acquired our 50% interest in the joint venture for approximately $12.5 million. Payment for our acquired interest in the joint venture was made in installments with approximately $6.8 million paid in 2017 and the balance of $5.7 million paid in January 2018. We determined that due to a lack of a voting majority, and other qualitative factors, we do not control the operations of the joint venture and accordingly, our investment in the joint venture is accounted for under the equity method of accounting. During the years ended December 31, 2020 and 2019, we made purchases from the joint venture of approximately and Investment in Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. In April 2014, we formed Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd., a 50/50 joint venture with Gwo Yng Enterprise Co., Ltd. (“Gwo Yng”), a China-based manufacturer of automotive air conditioner accumulators, filter driers, hose assemblies and switches . In March 2018, we acquired an additional 15% equity interest in the joint venture for approximately $4.2 million, thereby increasing our equity interest in the joint venture to 65%. The $4.2 million payment for our additional 15% investment was made in cash installments throughout 2018. Although we have increased our equity interest in the joint venture to 65%, the minority shareholder will maintain participating rights that will allow it to participate in certain significant financial and operating decisions that occur in the ordinary course of business. As a result of the existence of these substantive participating rights of the minority shareholder, we will continue to account for our investment in the joint venture under the equity method of accounting. During the years ended December 31, 2020 and 2019, we made purchases from the joint venture of approximately $12.4 million and $12.7 million, respectively. Investment in Orange Electronic Co. Ltd. In January 2013, we acquired an approximate 25% minority interest in Orange Electronic Co., Ltd. (“Orange”) for $6.3 million. Orange is a manufacturer of tire pressure monitoring system sensors and is located in Taiwan. As of December 31, 2020, our minority interest in Orange of 19.4% is accounted for using the equity method of accounting as we have the ability to exercise significant influence. During the fourth quarter of 2018, after a review of recent financial performance and near term prospects for Orange, we determined that the decline in quoted market prices below the carrying amount of our investment was other than temporary and, as such, recognized a noncash impairment charge of approximately $1.7 million, in the quarter. The impairment charge has been reported in our Engine Management Segment and is included in other non-operating income (expense), net in our consolidated statements of operations. Purchases from Orange during the years ended December 31, 2020 and 2019 were approximately $4.4 million and $3.5 million, respectively.

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2020
Other Assets [Abstract]
Other Assets	10. Other Assets December 31, 2020 2019 (In thousands) Deferred compensation $ 20,775 $ 17,519 Deferred financing costs, net 431 656 Other 617 660 Total other assets, net $ 21,823 $ 18,835 Deferred compensation consists of assets held in a nonqualified defined contribution pension plan as of December 31, 2020 and 2019, respectively.

Credit Facilities and Long-Term

Credit Facilities and Long-Term Debt	12 Months Ended
	Dec. 31, 2020
Credit Facilities and Long-Term Debt [Abstract]
Credit Facilities and Long-Term Debt	11. Credit Facilities and Long-Term Debt Total debt outstanding is summarized as follows: December 31, 2020 2019 (In thousands) Revolving credit facilities $ 10,000 $ 52,460 Other (1) 232 4,585 Total debt $ 10,232 $ 57,045 Current maturities of debt $ 10,135 $ 56,916 Long-term debt 97 129 Total debt $ 10,232 $ 57,045 (1) Other includes borrowings under our Polish overdraft facility of Zloty 0.4 million (approximately $0.1 million) and Zloty 16.7 million (approximately $4.4 million) as of December 31, 2020 and 2019, respectively. Maturities of long-term debt are not material for the year ended December 31, 2020 and beyond. Revolving Credit Facility In December 2018, we amended our Credit Agreement with JPMorgan Chase Bank, N.A., as agent, and a syndicate of lenders. The amended credit agreement provides for a senior secured revolving credit facility with a line of credit of up to $250 million (with an additional $50 million accordion feature) and extends the maturity date to December 2023 Borrowings under the amended credit agreement are secured by substantially all of our assets, including accounts receivable, inventory and certain fixed assets, and those of certain of our subsidiaries. Availability under the amended credit agreement is based on a formula of eligible accounts receivable, eligible drafts presented to the banks under our supply chain financing arrangements The loss of business of one or more of our key customers or, a significant reduction in purchases of our products from any one of them, could adversely impact availability under our revolving credit facility. Outstanding borrowings under the credit agreement, which are classified as current liabilities, were $10 million and $52.5 million at December 31, 2020 and 2019, respectively ; while letters of credit outstanding under the credit agreement were $ million and $ million at December 31, 2020 and 2019, respectively. At December 31, 2020, the weighted average interest rate on our amended credit agreement was , which consisted of $ million in direct borrowings. At any time that our borrowing availability is less than the greater of either (a) $25 million, or 10% of the commitments if fixed assets are not included in the borrowing base, or (b) $31.25 million, or 12.5% of the commitments if fixed assets are included in the borrowing base, the terms of the amended credit agreement provide for, among other provisions, a financial covenant requiring us, on a consolidated basis, to maintain a fixed charge coverage ratio of 1:1 at the end of each fiscal quarter (rolling four quarters). As of December 31, 2020, we were not subject to these covenants. The amended credit agreement permits us to pay cash dividends of $20 million and make stock repurchases of $20 million in any fiscal year subject to a minimum availability of $25 million. Provided specific conditions are met, the amended credit agreement also permits acquisitions, permissible debt financing, capital expenditures, and cash dividend payments and stock repurchases of greater than $20 million. Polish Overdraft Facility Our Polish subsidiary, SMP Poland sp. z.o.o., has entered into an overdraft facility with HSBC France (Spolka Akcyjna) Oddzial w Polsce, formerly HSBC Bank Polska S.A., for December 2021 Deferred Financing Costs We have deferred financing costs of approximately $0.7 million and $0.9 million as of December 31, 2020 and 2019, respectively. Deferred financing costs as of December 31, 2020 are related to our revolving credit facility. Scheduled amortization for future years, assuming no prepayments of principal is as follows: (In thousands) 2021 $ 225 2022 225 2023 206 Total amortization $ 656

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2020
Stockholders' Equity [Abstract]
Stockholders' Equity	12. Stockholders’ Equity We have authority to issue 500,000 shares of preferred stock, $20 par value, and our Board of Directors is vested with the authority to establish and designate any series of preferred, to fix the number of shares therein and the variations in relative rights as between each series. In December 1995, our Board of Directors established a new series of preferred shares designated as Series A Participating Preferred Stock. The number of shares constituting the Series A Preferred Stock is 30,000. The Series A Preferred Stock is designed to participate in dividends, ranks senior to our common stock as to dividends and liquidation rights and has voting rights. Each share of the Series A Preferred Stock shall entitle the holder to one thousand votes on all matters submitted to a vote of the stockholders of the Company. No such shares were outstanding at December 31, 2020 and 2019. In May our Board of Directors authorized the purchase of up to of our common stock under a stock repurchase program. Under this program, during the year ended December and we repurchased and shares of our common stock, respectively, at a total cost of and , respectively, thereby completing the Board of Directors authorization. In March 2020, our Board of Directors authorized the purchase of up to $ million of our common stock under a stock repurchase program. Under this program, during the year ended December 31, 2020, we repurchased shares of our common stock, at a total cost of $ million. As of December 31, 2020, there was approximately $ million available for future stock purchases under the program. .

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2020
Stock-Based Compensation Plans [Abstract]
Stock-Based Compensation Plans	13. Stock-Based Compensation Plans Our stock-based compensation program is a broad-based program designed to attract and retain employees while also aligning employees’ interests with the interests of our shareholders. In addition, members of our Board of Directors participate in our stock-based compensation program in connection with their service on our board. In May 2016, our Board of Directors and Shareholders approved the 2016 Omnibus Incentive Plan. The 2016 Omnibus Incentive Plan supersedes the 2006 Omnibus Incentive Plan, which terminated in May 2016. The 2016 Omnibus Incentive Plan is the only remaining plan available to provide stock-based incentive compensation to our employees, directors and other eligible persons. Under the 2016 Omnibus Incentive Plan, which terminates in May 2026, 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 1,100,000 shares. Shares issued under the plan that are cancelled, forfeited or expire by their terms are eligible to be granted again under the 2016 Omnibus Incentive Plan. Awards previously granted under the 2006 Omnibus Incentive Plan are not affected by the plan’s termination, while shares not yet granted under the plan are not available for future issuance. We account for our stock-based compensation plans in accordance with the provisions of ASC 718, Stock Compensation Stock-based compensation expense under our existing plans was $ million ($ million, net of tax), $ million ($ million, net of tax), and $ million ($ million, net of tax) for the years ended December 31, 2020, 2019 and 2018 , respectively. Restricted Stock and Performance Share Grants We currently grant shares of restricted stock to eligible employees and our independent directors and performance-based stock to eligible employees. We grant eligible employees two 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 three years after the date of grant. Long-term retention restricted shares granted to selected executives vest at a 25% rate on or within approximately two months of an executive reaching the ages of 60 and 63, and become fully vested 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 Prior to the time a restricted share becomes fully vested or a performance share is issued, the awardees cannot transfer, pledge, hypothecate or encumber such shares. Prior to the time a restricted share is fully vested, the awardees have all other rights of a stockholder, including the right to vote (but not receive dividends during the vesting period). Prior to the time a performance share is issued, the awardees shall have no rights as a stockholder. All shares and rights are subject to forfeiture if certain employment conditions are not met. Under the 2016 Omnibus Incentive Plan, 1,100,000 shares are authorized to be issued. At December 31, 2020, under the plan, there were an aggregate of (a) 926,271 shares of restricted and performance-based stock grants issued, net of forfeitures, and (b) 173,729 shares of common stock available for future grants. For the year ended December 31, 2020, 208,200 restricted and performance-based shares were granted (153,200 restricted shares and 55,000 performance-based shares). In determining the grant date fair value, the stock price on the date of grant, as quoted on the New York Stock Exchange, was reduced by the present value of dividends expected to be paid on the shares issued and outstanding during the requisite service period, discounted at a risk-free interest rate. The risk-free interest rate is based on the U.S. Treasury rates at the date of grant with maturity dates approximately equal to the restriction or vesting period at the grant date. In addition, a further discount for the lack of marketability reduced the fair value of grants issued to certain key executives and directors subject to the one As related to restricted and performance stock shares, we recorded compensation expense of $7.8 million ($5.8 million, net of tax), $6.5 million ($4.9 million, net of tax) and $7.4 million ($5.5 million, net of tax), for the years ended December 31, 2020, 2019 and 2018, respectively. The unamortized compensation expense related to our restricted and performance-based shares was $15.2 million and $15.9 million at December 31, 2020 and 2019, respectively and is expected to be recognized over a weighted average period of 4.6 years and 0.3 years for employees and directors, respectively, as of December 31, 2020 and 2019. Our restricted and performance-based share activity was as follows for the years ended December 31, 2020 and 2019: Shares Weighted Average Grant Date Fair Value per Share Balance at December 31, 2018 870,041 $ 34.59 Granted 204,650 42.05 Vested (188,693 ) 38.08 Forfeited (1) (33,458 ) 43.32 Balance at December 31, 2019 852,540 $ 35.26 Granted 208,200 38.21 Vested (161,054 ) 39.23 Forfeited (1) (60,000 ) 42.25 Balance at December 31, 2020 839,686 $ 34.77 ( 1 ) Due to the lack of achievement of performance targets, performance-based shares forfeited in the years ended December 31, 2020 and 2019 were shares and shares, respectively. The weighted-average grant date fair value of restricted and performance-based shares outstanding as of December 31, 2020, 2019 and 2018 was $29.2 million (or $34.77 per share), $30.1 million (or $35.26 per share), and $30.1 million (or $34.59 per share), respectively.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2020
Employee Benefits [Abstract]
Employee Benefits	14. Employee Benefits Defined Contribution Plans We maintain various defined contribution plans, which include profit sharing, and provide retirement benefits for substantially all of our employees. Matching obligations, in connection with the plans which are funded in cash and typically contributed to the plans in March of the following year, are as follows (in thousands): U.S. Defined Contribution Year ended December 31, 2020 $ 9,457 2019 9,080 2018 8,928 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 2019, contributions of $0.3 million were made related to calendar year 2018. In March 2020, contributions of $0.3 million were made related to calendar year 2019. We have recorded an obligation of $0.6 million for 2020. We also have an Employee Stock Ownership Plan and Trust (“ESOP”) 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 its fiduciary duties. During 2020, we contributed to the trust an additional 44,700 shares from our treasury and released 44,700 shares from the trust leaving 200 shares remaining in the trust as of December 31, 2020. The provision for expense in connection with the ESOP was approximately $2.3 million in 2020, $2.5 million in 2019 and $2.6 million in 2018. Defined Benefit Pension Plan We maintain a defined benefit unfunded Supplemental Executive Retirement Plan (“SERP”). The SERP, as amended, is a defined benefit plan pursuant to which we will pay supplemental pension benefits to certain key employees upon the attainment of a contractual participant’s payment date based upon the employees’ years of service and compensation. As there are no current participants in the SERP, there was no benefit obligation outstanding related to the plan as of December 31, 2020 and 2019 and we recorded no expense related to the plan during the years ended December 31, 2020, 2019 and 2018. Postretirement Medical Benefits We provide certain medical and dental care benefits to 16 former U.S. union employees. The postretirement medical and dental benefit obligation for the former union employees as of December 31, 2020, and the net periodic benefit cost for our postretirement benefit plans for the years ended December 31, 2020, 2019 and 2018 were not material.

Other Non-Operating Income (Exp

Other Non-Operating Income (Expense), Net	12 Months Ended
	Dec. 31, 2020
Other Non-Operating Income (Expense), Net [Abstract]
Other Non-Operating Income (Expense), Net	15. Other Non-Operating Income (Expense), Net The components of other non-operating income (expense), net are as follows: Year Ended December 31, 2020 2019 2018 (In thousands) Interest and dividend income $ 109 $ 97 $ 80 Equity income (loss) from joint ventures (1) 820 2,865 (768 ) Gain (loss) on foreign exchange (350 ) (502 ) (120 ) Postretirement plan net periodic benefit credit (cost) 27 25 262 Other non-operating income, net 206 102 135 Total other non-operating income (expense), net $ 812 $ 2,587 $ (411 ) (1) Year ended December 31, 2018 includes a noncash impairment charge of approximately $1.7 million related to our minority interest investment in Orange Electronic Co., Ltd. See Note 9, “Investments in Unconsolidated Affiliates” for additional information.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Measurements [Abstract]
Fair Value Measurements	16. Fair Value Measurements The carrying value of our financial instruments consisting of cash and cash equivalents, deferred compensation, and short term borrowings approximate their fair value. In each instance, fair value is determined after considering Level 1 inputs under the three-level fair value hierarchy. For fair value purposes, the carrying value of cash and cash equivalents approximates fair value due to the short maturity of those investments. The fair value of the assets held by the deferred compensation plan are based on the quoted market prices of the underlying funds which are held in registered investment companies. The carrying value of our revolving credit facilities, classified as short term borrowings, equals fair market value because the interest rate reflects current market rates.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Income Taxes	17. Income Taxes The income tax provision (benefit) consists of the following (in thousands): Year Ended December 31, 2020 2019 2018 Current: Domestic $ 30,368 $ 14,632 $ 26,821 Foreign 4,064 3,019 3,180 Total current 34,432 17,651 30,001 Deferred: Domestic (7,418 ) 4,677 (10,132 ) Foreign (52 ) 417 108 Total deferred (7,470 ) 5,094 (10,024 ) Total income tax provision $ 26,962 $ 22,745 $ 19,977 Reconciliations between taxes at the U.S. Federal income tax rate and taxes at our effective income tax rate on earnings from continuing operations before income taxes are as follows (in thousands): Year Ended December 31, 2020 2019 2018 U.S. Federal income tax rate of 21% $ 22,550 $ 19,277 $ 16,135 Increase (decrease) in tax rate resulting from: State and local income taxes, net of federal income tax benefit 3,781 3,328 2,781 Income tax (tax benefits) attributable to foreign income 330 191 1,598 Other non-deductible items, net (563 ) (409 ) (559 ) Change in valuation allowance 864 358 22 Provision for income taxes $ 26,962 $ 22,745 $ 19,977 The following is a summary of the components of the net deferred tax assets and liabilities recognized in the accompanying consolidated balance sheets (in thousands): December 31, 2020 2019 Deferred tax assets: Inventories $ 12,773 $ 12,077 Allowance for customer returns 13,804 11,969 Postretirement benefits 42 50 Allowance for doubtful accounts 1,412 1,262 Accrued salaries and benefits 12,984 9,826 Tax credit carryforwards 1,451 609 Accrued asbestos liabilities 15,372 13,132 Other 170 148 58,008 49,073 Valuation allowance (1,621 ) (757 ) Total deferred tax assets 56,387 48,316 Deferred tax liabilities: Depreciation 7,710 7,706 Other 3,907 3,338 Total deferred tax liabilities 11,617 11,044 Net deferred tax assets $ 44,770 $ 37,272 In assessing the realizability of the deferred tax assets, we consider whether it is more likely than not that some portion or the entire deferred tax asset will be realized. Ultimately, the realization of the deferred tax asset is dependent upon the generation of sufficient taxable income in those periods in which temporary differences become deductible and/or net operating loss carryforwards can be utilized. We consider the level of historical taxable income, scheduled reversal of temporary differences, carryback and carryforward periods, tax planning strategies and projected future taxable income in determining whether a valuation allowance is warranted. We also consider cumulative losses in recent years as well as the impact of one-time events in assessing our pre-tax earnings. Assumptions regarding future taxable income require significant judgment. Our assumptions are consistent with estimates and plans used to manage our business. The valuation allowance of $1.6 million as of December 31, 2020 is intended to provide for uncertainty regarding the ultimate realization of our U.S. foreign tax credit carryovers and foreign net operating loss carryovers. Based on these considerations, we believe it is more likely than not that we would realize the benefit of the net deferred tax asset of $44.8 million as of December 31, 2020, which is net of the remaining valuation allowance. At December 31, 2020, we have foreign tax credit carryforwards of approximately $1.5 million that will expire in varying amounts by 2028 As related to the taxation of our foreign subsidiaries, we aggregate our foreign earnings and profits, and utilize allowable deductions and available foreign tax credits in computing our U.S. tax. Notwithstanding the U.S. taxation of these amounts, we intend to continue to invest most or all of these earnings indefinitely outside of the U.S., and do not expect to incur any significant additional taxes related to such amounts. In accordance with generally accepted accounting practices, we recognize in our financial statements only those tax positions that meet the more-likely-than-not recognition threshold. We establish tax reserves for uncertain tax positions that do not meet this threshold. During the years ended December 31, 2020, 2019 and 2018, we did t establish a liability for uncertain tax positions. We are subject to taxation in the U.S. and various state, local and foreign jurisdictions. As of December 31, 2020, the Company is no longer subject to U.S. Federal tax examinations for years before 2017. We remain subject to examination by state and local tax authorities for tax years 2016 through 2019 2016 2015 2016 2015

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	18. Earnings Per Share We present two calculations of earnings per common share. “Basic” earnings per common share equals net income divided by weighted average common shares outstanding during the period. “Diluted” earnings per common share equals net income divided by the sum of weighted average common shares outstanding during the period plus potentially dilutive common shares. Potentially dilutive common shares that are anti-dilutive are excluded from net earnings per common share. The following are reconciliations of the earnings available to common stockholders and the shares used in calculating basic and dilutive net earnings per common share (in thousands, except per share data): Year Ended December 31, 2020 2019 2018 Basic Net Earnings Per Common Share: Earnings from continuing operations $ 80,417 $ 69,051 $ 56,854 Loss from discontinued operations (23,024 ) (11,134 ) (13,851 ) Net earnings available to common stockholders $ 57,393 $ 57,917 $ 43,003 Weighted average common shares outstanding 22,374 22,378 22,456 Earnings from continuing operations per common share $ 3.59 $ 3.09 $ 2.53 Loss from discontinued operations per common share (1.02 ) (0.50 ) (0.62 ) Basic net earnings per common share $ 2.57 $ 2.59 $ 1.91 Diluted Net Earnings Per Common Share: Earnings from continuing operations $ 80,417 $ 69,051 $ 56,854 Loss from discontinued operations (23,024 ) (11,134 ) (13,851 ) Net earnings available to common stockholders $ 57,393 $ 57,917 $ 43,003 Weighted average common shares outstanding 22,374 22,378 22,456 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock and performance-based stock 452 440 476 Weighted average common shares outstanding – Diluted 22,826 22,818 22,932 Earnings from continuing operations per common share $ 3.52 $ 3.03 $ 2.48 Loss from discontinued operations per common share (1.01 ) (0.49 ) (0.60 ) Diluted net earnings per common share $ 2.51 $ 2.54 $ 1.88 The shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or because they were excluded under the treasury method (in thousands): 2020 2019 2018 Restricted and performance shares 268 255 249

Industry Segment and Geographic

Industry Segment and Geographic Data	12 Months Ended
	Dec. 31, 2020
Industry Segment and Geographic Data [Abstract]
Industry Segment and Geographic Data	19. Industry Segment and Geographic Data We have two major reportable operating segments, each of which focuses on a specific line of replacement parts. 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 accounting policies of each segment are the same as those described in the summary of significant accounting policies (see Note 1). The following tables contain financial information for each reportable segment (in thousands): Year Ended December 31, 2020 2019 2018 Net sales (a): Engine Management $ 835,685 $ 849,161 $ 803,487 Temperature Control 281,954 278,355 278,456 Other 10,949 10,397 10,108 Total net sales $ 1,128,588 $ 1,137,913 $ 1,092,051 Intersegment sales (a) Engine Management $ 15,952 $ 19,569 $ 23,367 Temperature Control 6,162 6,545 8,160 Other (22,114 ) (26,114 ) (31,527 ) Total intersegment sales $ — $ — $ — Depreciation and Amortization: Engine Management $ 20,417 $ 19,463 $ 17,858 Temperature Control 4,035 4,568 4,704 Other 1,871 1,778 1,542 Total depreciation and amortization $ 26,323 $ 25,809 $ 24,104 Operating income (loss) Engine Management $ 111,217 $ 103,808 $ 84,844 Temperature Control 21,296 13,667 14,586 Other (23,618 ) (22,980 ) (18,162 ) Total operating income $ 108,895 $ 94,495 $ 81,268 Investment in unconsolidated affiliates: Engine Management $ 2,428 $ 2,243 $ 2,158 Temperature Control 38,079 36,615 30,311 Other — — — Total investment in unconsolidated affiliates $ 40,507 $ 38,858 $ 32,469 Capital expenditures Engine Management $ 13,496 $ 12,593 $ 11,435 Temperature Control 1,988 2,273 7,245 Other 2,336 1,319 1,461 Total capital expenditures $ 17,820 $ 16,185 $ 20,141 Total assets Engine Management $ 618,210 $ 594,953 $ 532,092 Temperature Control 230,111 216,591 202,411 Other 108,219 92,310 84,613 Total assets $ 956,540 $ 903,854 $ 819,116 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments. Other consists of the elimination of intersegment sales from our Engine Management and Temperature Control segments, as well as items pertaining to our Canadian business unit that does not meet the criteria of a reportable operating segment and our corporate headquarters function. Reconciliation of segment operating income to net earnings: Year Ended December 31, 2020 2019 2018 (In thousands) Operating income $ 108,895 $ 94,495 $ 81,268 Other non-operating income (expense), net 812 2,587 (411 ) Interest expense 2,328 5,286 4,026 Earnings from continuing operations before taxes 107,379 91,796 76,831 Income tax expense 26,962 22,745 19,977 Earnings from continuing operations 80,417 69,051 56,854 Discontinued operations, net of tax (23,024 ) (11,134 ) (13,851 ) Net earnings $ 57,393 $ 57,917 $ 43,003 December 31, 2020 2019 2018 Long-lived assets (a) (In thousands) United States $ 241,053 $ 253,384 $ 198,494 Canada 4,470 4,659 2,718 Mexico 10,586 12,036 4,012 Asia 40,621 38,942 32,470 Europe 16,504 17,004 16,880 Total long-lived assets $ 313,234 $ 326,025 $ 254,574 (a) Long-lived assets are attributed to countries based upon the location of the assets. Our five largest individual customers accounted for approximately 68% of our consolidated net sales in 2020, approximately of our consolidated net sales in 2019 and approximately of our consolidated net sales in 2018. The loss of one or more of these customers or, a significant reduction in purchases of our products from any one of them, could have a materially adverse impact on our business, financial condition and results of operations. In December 2020, a large retail customer informed us of its decision to pursue a private brand strategy for its engine management product line. This customer has historically purchased $140 million of engine management products annually from us. We anticipate that sales to this customer will continue through the first quarter of 2021. In light of this development, we plan to take the necessary steps to reduce costs. 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 20, “Net Sales.”

Net Sales

Net Sales	12 Months Ended
	Dec. 31, 2020
Net Sales [Abstract]
Net Sales	20. 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 years ended December 31, 2020, 2019 and 2018 (in thousands): Year Ended December 31, 2020 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 738,521 $ 268,680 $ — $ 1,007,201 Canada 25,842 11,679 10,949 48,470 Mexico 19,336 271 — 19,607 Asia 35,079 165 — 35,244 Europe 12,255 351 — 12,606 Other foreign 4,652 808 — 5,460 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Major Product Group: Ignition, emission control, fuel and safety related system products $ 691,722 $ — $ 8,172 $ 699,894 Wire and cable 143,963 — 159 144,122 Compressors — 163,071 812 163,883 Other climate control parts — 118,883 1,806 120,689 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Major Sales Channel: Aftermarket $ 682,874 $ 255,716 $ 10,949 $ 949,539 OE/OES 133,942 25,070 — 159,012 Export 18,869 1,168 — 20,037 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Year Ended December 31, 2019 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 760,134 $ 263,769 $ — $ 1,023,903 Canada 27,439 12,322 10,397 50,158 Mexico 19,330 705 — 20,035 Asia 24,838 130 — 24,968 Europe 13,341 534 — 13,875 Other foreign 4,079 895 — 4,974 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Major Product Group: Ignition, emission control, fuel and safety related system products $ 705,994 $ — $ 6,381 $ 712,375 Wire and cable 143,167 — 477 143,644 Compressors — 160,485 1,338 161,823 Other climate control parts — 117,870 2,201 120,071 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Major Sales Channel: Aftermarket $ 702,872 $ 248,420 $ 10,397 $ 961,689 OE/OES 124,665 27,915 — 152,580 Export 21,624 2,020 — 23,644 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Year Ended December 31, 2018 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 714,402 $ 261,628 $ — $ 976,030 Canada 33,475 13,877 10,108 57,460 Mexico 19,397 817 — 20,214 Asia 17,869 279 — 18,148 Europe 13,054 630 — 13,684 Other foreign 5,290 1,225 — 6,515 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 Major Product Group: Ignition, emission control, fuel and safety related system products $ 648,270 $ — $ 5,829 $ 654,099 Wire and cable 155,217 — 454 155,671 Compressors — 148,416 1,853 150,269 Other climate control parts — 130,040 1,972 132,012 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 Major Sales Channel: Aftermarket $ 684,242 $ 246,112 $ 10,108 $ 940,462 OE/OES 97,205 30,275 — 127,480 Export 22,040 2,069 — 24,109 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 (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. 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 replacement parts 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 replacement parts 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 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	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies [Abstract]
Commitments and Contingencies	21. Commitments and Contingencies Total rent expense for the three years ended December 31, 2020 was as follows (in thousands): Total Real Estate Other 2020 (1) $ 11,669 $ 8,290 $ 3,379 2019 (1) 11,382 7,909 3,473 2018 12,605 9,272 3,333 (1) In and $ million for the years ended December 31, 2020 and 2019 , 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 no For our operating lease minimal rental payments that we are obligated to make, see Note 7, “Leases.” Warranties We generally warrant our products against certain manufacturing and other defects. These product warranties are provided for specific periods of time depending on the nature of the product. As of December 31, 2020 and 2019, we have accrued $17.7 million and $17.2 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. Warranty expense for each of the years 2020, 2019 and 2018 were The following table provides the changes in our product warranties: December 31, 2020 2019 (In thousands) Balance, beginning of period $ 17,175 $ 16,663 Liabilities accrued for current year sales 87,116 99,304 Settlements of warranty claims (86,628 ) (98,792 ) Balance, end of period $ 17,663 $ 17,175 Letters of Credit At December 31, 2020, we had outstanding letters of credit with certain vendors aggregating approximately $2.8 million. These letters of credit are being maintained as security for reimbursements to insurance companies and as security to the landlord of our administrative offices in Long Island City, New York. The contract amount of the letters of credit is a reasonable estimate of their value as the value for each is fixed over the life of the commitment. Change of Control Arrangements We have a change in control arrangement with one key officer. In the event of a change of control (as defined in the agreement), the executive will receive severance payments and certain other benefits as provided in his agreement. Asbestos I n 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 December 31, 2020 , approximately Since inception in September 2001 through December 31, 2020 , the amounts paid for settled claims and awards of asbestos-related damages, including interest, were approximately 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 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 quarter of each year, and whenever events or changes in circumstances indicate that additional provisions may be necessary, an actuarial study was performed as of . The results of the 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 $ to $ for the period through . Based upon the results of the actuarial study, in we increased our asbestos liability to $ , the low end of the range, and recorded an incremental pre-tax provision of $ in earnings (loss) from discontinued operations in the accompanying statement of operations. As related to our potential asbestos-related liability as of , we were found liable for $ in compensatory damages as a defendant in a asbestos liability case in California. We actively pursued our right of appeal, and during the quarter of , received notice that we lost the appeal. The judgment against us was for the $ in compensatory damages plus interest at a rate of ( ) per annum. During the quarter of , we paid the compensatory damages and accrued interest. Based upon the reduction to our asbestos-related liability resulting from the payment made in the California asbestos case and quarter cash settlements, in our actuarial firm performed an updated actuarial study. The results of the updated 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 $ to $ for the period through . Based upon the results of the updated actuarial study and in accordance with our practice, we increased our asbestos liability as of to $ , the low end of the range, and recorded an additional incremental pre-tax provision of $ in earnings (loss) from discontinued 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 updated study, to range from $ to $ for the period through . Total operating cash outflows related to discontinued operations, which include settlements, awards of asbestos-related damages and legal costs, net of taxes, were $ , $ and $ for the years ended and , 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.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Data (Unaudited) [Abstract]
Quarterly Financial Data (Unaudited)	22. Quarterly Financial Data (Unaudited) 2020 Quarter Ended Dec. 31 Sept. 30 June 30 Mar. 31 (In thousands, except per share amounts) Net sales $ 282,738 $ 343,609 $ 247,939 $ 254,302 Gross profit 94,154 107,748 64,358 70,395 Earnings from continuing operations 22,742 36,212 11,842 9,621 Loss from discontinued operations, net of taxes (13,568 ) (7,587 ) (875 ) (994 ) Net earnings $ 9,174 $ 28,625 $ 10,967 $ 8,627 Net earnings from continuing operations per common share: Basic $ 1.02 $ 1.62 $ 0.53 $ 0.43 Diluted $ 1.00 $ 1.59 $ 0.52 $ 0.42 Net earnings per common share: Basic $ 0.41 $ 1.28 $ 0.49 $ 0.38 Diluted $ 0.40 $ 1.26 $ 0.48 $ 0.38 2019 Quarter Ended Dec. 31 Sept. 30 June 30 Mar. 31 (In thousands, except per share amounts) Net sales $ 241,252 $ 307,723 $ 305,172 $ 283,766 Gross profit 72,844 92,088 88,905 77,963 Earnings from continuing operations 12,738 22,654 20,555 13,104 Loss from discontinued operations, net of taxes (1,220 ) (7,903 ) (1,123 ) (888 ) Net earnings $ 11,518 $ 14,751 $ 19,432 $ 12,216 Net earnings from continuing operations per common share: Basic $ 0.57 $ 1.01 $ 0.92 $ 0.58 Diluted $ 0.56 $ 1.00 $ 0.90 $ 0.57 Net earnings per common share: Basic $ 0.51 $ 0.66 $ 0.87 $ 0.54 Diluted $ 0.50 $ 0.65 $ 0.85 $ 0.53

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2020
Schedule II - Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Schedule II ‑ Years ended December 31, 2020, 2019 and 2018 Additions Description Balance at beginning of year Charged to costs and expenses Other Deductions Balance at end of year Year ended December 31, 2020 : Allowance for doubtful accounts $ 4,244,000 $ 392,000 $ — $ 230,000 $ 4,406,000 Allowance for discounts 968,000 11,488,000 — 11,040,000 1,416,000 $ 5,212,000 $ 11,880,000 $ — $ 11,270,000 $ 5,822,000 Allowance for sales returns $ 35,240,000 $ 135,448,000 $ — $ 129,706,000 $ 40,982,000 Year ended December 31, 2019 : Allowance for doubtful accounts $ 4,488,000 $ (295,000 ) $ — $ (51,000 ) $ 4,244,000 Allowance for discounts 1,199,000 10,660,000 — 10,891,000 968,000 $ 5,687,000 $ 10,365,000 $ — $ 10,840,000 $ 5,212,000 Allowance for sales returns $ 33,417,000 $ 136,777,000 $ — $ 134,954,000 $ 35,240,000 Year ended December 31, 2018 : Allowance for doubtful accounts $ 3,824,000 $ 325,000 $ — $ (339,000 ) $ 4,488,000 Allowance for discounts 1,143,000 10,359,000 — 10,303,000 1,199,000 $ 4,967,000 $ 10,684,000 $ — $ 9,964,000 $ 5,687,000 Allowance for sales returns $ 30,950,000 $ 132,390,000 $ 6,670,000 (1) $ 136,593,000 $ 33,417,000 (1) The other addition to the allowance for sales returns represents the cumulative effect of the changes made to our consolidated balance sheet as of January 1, 2018 for the adoption of ASU 2014-09, Revenue from Contracts with Customers .

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation Standard Motor Products, Inc. and subsidiaries (referred to hereinafter in these notes to the consolidated financial statements as “we,” “us,” “our” or the “Company”) is engaged in the manufacture and distribution of replacement parts for motor vehicles in the automotive aftermarket industry with a complementary focus on the heavy duty, industrial equipment and original equipment service markets. The consolidated financial statements include our accounts and all domestic and international companies in which we have more than a 50% equity ownership, except in instances where the minority shareholder maintains substantive participating rights, in which case we follow the equity method of accounting. 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.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our consolidated financial statements, and the reported amounts of revenue and expenses during the reporting periods. We have made a number of estimates and assumptions in the preparation of these consolidated financial statements. We can give assurances that actual results will not differ from those estimates. Although we do not believe that there is a reasonable likelihood that there will be a material change in the future estimates, or in the assumptions that we use in calculating the estimates, the uncertain future effects, if any, of the COVID pandemic, and other unforeseen changes in the industry, or business, could materially impact the estimates, and may have a material adverse effect on our business, financial condition and results of operations. Some of the more significant estimates include allowances for doubtful accounts, cash discounts, valuation of inventory, valuation of long-lived assets, goodwill and other intangible assets, depreciation and amortization of long-lived assets, product liability exposures, asbestos, environmental and litigation matters, valuation of deferred tax assets, share based compensation and sales returns and other allowances.
Reclassification	Reclassification Certain prior period amounts in the accompanying consolidated financial statements and related notes have been reclassified to conform to the 2020 presentation.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments purchased with a maturity of three months or less to be cash equivalents.
Allowance for Doubtful Accounts and Cash Discounts	Allowance for Doubtful Accounts and Cash Discounts We do not generally require collateral for our trade accounts receivable. Accounts receivable have been reduced by an allowance for amounts that may become uncollectible in the future. These allowances are established based on a combination of write-off history, supportable forecasts, aging analysis, and specific account evaluations. When a receivable balance is known to be uncollectible, it is written off against the allowance for doubtful accounts. Cash discounts are provided based on an overall average experience rate applied to qualifying accounts receivable balances.
Inventories	Inventories Inventories are valued at the lower of cost and net realizable value. Cost is determined on the first-in first-out basis. Where appropriate, standard cost systems are utilized for purposes of determining cost; the standards are adjusted as necessary to ensure they approximate actual costs. Estimates of lower of cost and net realizable value of inventory are determined by comparing the actual cost of the product to the estimated selling prices in the ordinary course of business less reasonably predictable costs of completion, disposal and transportation of the inventory. We also evaluate inventories on a regular basis to identify inventory on hand that may be obsolete or in excess of current and future projected market demand. For inventory deemed to be obsolete, we provide a reserve on the full value of the inventory. Inventory that is in excess of current and projected use is reduced by an allowance to a level that approximates our estimate of future demand. Future projected demand requires management judgment and is based upon (a) our review of historical trends and (b) our estimate of projected customer specific buying patterns and trends in the industry and markets in which we do business. Using rolling twelve month historical information, we estimate future demand on a continuous basis. As such, the historical volatility of such estimates has been minimal. We maintain provisions for inventory reserves of and as of December 31, 2020 and 2019 respectively. We utilize cores (used parts) in our remanufacturing processes for air conditioning compressors, diesel injectors, and diesel pumps. The production of air conditioning compressors, diesel injectors, and diesel pumps involves the rebuilding of used cores, which we acquire either in outright purchases from used parts brokers, or from returns pursuant to an exchange program with customers. Under such exchange programs, at the time of sale of air conditioning compressors, diesel injectors, and diesel pumps, we estimate the core expected to be returned from the customer and record the estimated return as unreturned customer inventory. In addition, many of our customers can return inventory to us based upon customer warranty and overstock arrangements within customer specific limits. At the time products are sold, we accrue a liability for product warranties and overstock returns and record as unreturned customer inventory our estimate of anticipated customer returns. Estimates are based upon historical information on the nature, frequency and probability of the customer return. Unreturned core, warranty and overstock customer inventory is recorded at standard cost. Revision to these estimates is made when necessary, based upon changes in these factors. We regularly study trends of such claims.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are recorded at historical cost and are depreciated using the straight-line method of depreciation over the estimated useful lives as follows: Estimated Life Buildings 25 to 33-1/2 Building improvements 10 to 25 years Machinery and equipment 5 to years Tools, dies and auxiliary equipment 3 to years Furniture and fixtures 3 to years Leasehold improvements are depreciated over the shorter of the estimated useful life or the term of the lease. Costs related to maintenance and repairs which do not prolong the assets useful lives are expensed as incurred. We assess our property, plant and equipment to be held and used for impairment when indicators are present that the carrying value may not be recoverable.
Leases	Leases We determine if an arrangement is a lease at inception. For operating leases, we include and report operating lease right-of-use (“ROU”) assets, sundry payables and accrued expenses, and noncurrent operating lease liabilities on our consolidated balance sheet for leases with a term longer than twelve months. Finance leases are reported on our consolidated balance sheets in property, plant and equipment, current portion of other debt, and long-term debt. Operating lease ROU assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the total lease payments over the lease term. Our ROU assets represent the right to use an underlying leased asset over the existing lease term, and the corresponding lease liabilities represent our obligation to make lease payments arising from the lease agreement. As most of our leases do not provide for an implicit rate, we use our secured incremental borrowing rate based on the information available when determining the present value of our lease payments. Our lease terms may include options to terminate, or extend, our lease when it is reasonably certain that we will execute the option. Lease agreements may contain lease and non-lease components, which are generally accounted for separately. Operating lease expense is recognized on a straight-line basis over the lease term.
Valuation of Long-Lived and Intangible Assets and Goodwill	Valuation of Long-Lived and Intangible Assets and Goodwill At acquisition, we estimate and record the fair value of purchased intangible assets, which primarily consist of customer relationships, trademarks and trade names, patents and non-compete agreements. The fair values of these intangible assets are estimated based on our assessment. Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations. Goodwill and certain other intangible assets having indefinite lives are not amortized to earnings, but instead are subject to periodic testing for impairment. Intangible assets determined to have definite lives are amortized over their remaining useful lives. We assess the impairment of long-lived assets, identifiable intangibles assets and goodwill whenever events or changes in circumstances indicate that the carrying value may not be recoverable. With respect to goodwill and identifiable intangible assets having indefinite lives, we test for impairment on an annual basis or in interim periods if an event occurs or circumstances change that may indicate the fair value is below its carrying amount. Factors we consider important, which could trigger an impairment review, include the following: (a) significant underperformance relative to expected historical or projected future operating results; (b) significant changes in the manner of our use of the acquired assets or the strategy for our overall business; and (c) significant negative industry or economic trends. We review the fair values using the discounted cash flows method and market multiples. When performing our evaluation of goodwill for impairment, if we conclude qualitatively that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then a quantitative impairment test would not be required. If we are unable to reach this conclusion, then we would perform a goodwill quantitative impairment test. In performing the quantitative test, the fair value of the reporting unit is compared to its carrying amount. A charge for impairment is recognized by the amount by which the reporting unit’s carrying amount exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. Identifiable intangible assets having indefinite lives are reviewed for impairment on an annual basis using a methodology similar with that used to evaluate goodwill. Intangible assets having definite lives and other long-lived assets are reviewed for impairment whenever events such as product discontinuance, plant closures, product dispositions or other changes in circumstances indicate that the carrying amount may not be recoverable. In reviewing intangible assets having definite lives and other long-lived assets for impairment, we compare the carrying value of such assets to the estimated undiscounted future cash flows expected from the use of the assets and their eventual disposition. When the estimated undiscounted future cash flows are less than their carrying amount, an impairment loss is recognized equal to the difference between the assets fair value and their carrying value. There are inherent assumptions and estimates used in developing future cash flows requiring our judgment in applying these assumptions and estimates to the analysis of identifiable intangibles and long-lived asset impairment including projecting revenues, interest rates, tax rates and the cost of capital. Many of the factors used in assessing fair value are outside our control and it is reasonably likely that assumptions and estimates will change in future periods. These changes can result in future impairments. In the event our planning assumptions were modified resulting in impairment to our assets, we would be required to include an expense in our statement of operations, which could materially impact our business, financial condition and results of operations.
Foreign Currency Translation	Foreign Currency Translation Assets and liabilities of our foreign operations are translated into U.S. dollars at year-end exchange rates. Income statement accounts are translated using the average exchange rates prevailing during the year. The resulting translation adjustments are recorded as a separate component of accumulated other comprehensive income (loss) and remains there until the underlying foreign operation is liquidated or substantially disposed of. Foreign currency transaction gains or losses are recorded in the statement of operations under the caption “other non-operating income (expense), net.”
Revenue Recognition	Revenue Recognition We derive our revenue primarily from sales of replacement parts for motor vehicles from both our Engine Management and Temperature Control Segments. We recognize revenues when our performance obligation has been satisfied and the control of products has been transferred to a customer which typically occurs upon shipment. Revenue is measured as the amount of consideration we expect to receive in exchange for the transfer of goods or providing services. The amount of consideration we receive and revenue we recognize depends on the marketing incentives, product warranty and overstock returns we offer to our customers. For certain of our sales of remanufactured products, we also charge our customers a deposit for the return of a used core component which we can use in our future remanufacturing activities. Such deposit is not recognized as revenue at the time of the sale but rather carried as a core liability. At the same time, we estimate the core expected to be returned from the customer and record the estimated return as unreturned customer inventory. The liability is extinguished when a core is actually returned to us, or at period end when we estimate and recognize revenue for the core deposits not expected to be returned. We estimate and record provisions for cash discounts, quantity rebates, sales returns and warranties in the period the sale is recorded, based upon our prior experience and current trends. Significant management judgments and estimates must be made and used in estimating sales returns and allowances relating to revenue recognized in any accounting period.
Product Warranty and Overstock Returns	Product Warranty and Overstock Returns Many of our products carry a warranty ranging from a -day limited warranty to a lifetime limited warranty, which generally covers defects in materials or workmanship and failure to meet industry published specifications and/or the result of installation error. In addition to warranty returns, we also permit our customers to return new, undamaged products to us within customer-specific limits (which are generally limited to a specified of their annual purchases from us) in the event that they have overstocked their inventories. At the time products are sold, we accrue a liability for product warranties and overstock returns as a of sales based upon estimates established using historical information on the nature, frequency and average cost of the claim and the probability of the customer return. At the same time, we record an estimate of anticipated customer returns as unreturned customer inventory. Significant judgments and estimates must be made and used in connection with establishing the sales returns and other allowances in any accounting period. Revision to these estimates is made when necessary, based upon changes in these factors. We regularly study trends of such claims.
New Customer Acquisition Costs	New Customer Acquisition Costs New customer acquisition costs refer to arrangements pursuant to which we incur change-over costs to induce a new customer to switch from a competitor’s brand. In addition, change-over costs include the costs related to removing the new customer’s inventory and replacing it with our inventory commonly referred to as a stock lift. New customer acquisition costs are recorded as a reduction to revenue when incurred.
Selling, General and Administration Expenses	Selling, General and Administration Expenses Selling, general and administration expenses include shipping costs and advertising, which are expensed as incurred. Shipping and handling charges, as well as freight to customers, are included in distribution expenses as part of selling, general and administration expenses.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs represent costs incurred in conjunction with our debt financing activities. Deferred financing costs related to our revolving credit facility are capitalized and amortized over the life of the related financing arrangement. If the debt is retired early, the related unamortized deferred financing costs are written off in the period the debt is retired and are recorded in the statement of operations under the caption other non-operating income (expense), net.
Accounting for Income Taxes	Accounting for Income Taxes Income taxes are calculated using the asset and liability method. Deferred tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities, as measured by the current enacted tax rates. We maintain valuation allowances when it is more likely than not that all or a portion of a deferred asset will not be realized. The valuation allowance is intended to provide for the uncertainty regarding the ultimate utilization of our U.S. foreign tax credit carryovers and foreign net operating loss carryovers. In determining whether a valuation allowance is warranted, we consider all positive and negative evidence and all sources of taxable income such as prior earnings history, expected future earnings, carryback and carryforward periods and tax strategies to estimate if sufficient future taxable income will be generated to realize the deferred tax asset. The assessment of the adequacy of our valuation allowance is based on our estimates of taxable income by jurisdiction in which we operate and the period over which our deferred tax assets will be recoverable. In the event that actual results differ from these estimates, or we adjust these estimates in future periods for current trends or expected changes in our estimating assumptions, we may need to modify the level of valuation allowance which could materially impact our business, financial condition and results of operations. The valuation allowance of as of December 31, 2020 is intended to provide for the uncertainty regarding the ultimate realization of our U.S. foreign tax credit carryovers and foreign net operating loss carryovers. Based on these considerations, we believe it is more likely than not that we will realize the benefit of the net deferred tax asset of as of December 31, 2020 which is net of the remaining valuation allowance. Tax benefits are recognized for an uncertain tax position when, in management's judgment, it is more likely than not that the position will be sustained upon examination by a taxing authority. For a tax position that meets the more-likely-than-not recognition threshold, the tax benefit is measured as the largest amount that is judged to have a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority. The liability associated with unrecognized tax benefits is adjusted periodically due to changing circumstances and when new information becomes available. Such adjustments are recognized entirely in the period in which they are identified. During the years ended December 31, 2020, 2019 and 2018 we did not establish a liability for uncertain tax positions.
Environmental Reserves	Environmental Reserves We are subject to various U.S. Federal and state and local environmental laws and regulations and are involved in certain environmental remediation efforts. We estimate and accrue our liabilities resulting from such matters based upon a variety of factors including the assessments of environmental engineers and consultants who provide estimates of potential liabilities and remediation costs. Such estimates are not discounted to reflect the time value of money due to the uncertainty in estimating the timing of the expenditures, which may extend over several years. Potential recoveries from insurers or other third parties of environmental remediation liabilities are recognized independently from the recorded liability, and any asset related to the recovery will be recognized only when the realization of the claim for recovery is deemed probable.
Asbestos Litigation	Asbestos Litigation In evaluating our potential asbestos-related liability, we use an actuarial study that is prepared by a leading actuarial firm with expertise in assessing asbestos-related liabilities. We evaluate the estimate of the range of undiscounted liability to determine which amount to accrue. 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 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. Legal costs are expensed as incurred.
Loss Contingencies	Loss Contingencies We have loss contingencies, for such matters as legal claims and legal proceedings. Establishing loss reserves for these matters requires estimates, judgment of risk exposure and ultimate liability. We record provisions when the liability is considered probable and reasonably estimable. Significant judgment is required for both the determination of probability and the determination as to whether an exposure can be reasonably estimated. We maintain an ongoing monitoring and identification process to assess how the activities are progressing against the accrued estimated costs. As additional information becomes available, we reassess our potential liability related to these matters. Adjustments to the liabilities are recorded in the statement of operations in the period when additional information becomes available. Such revisions of the potential liabilities could have a material adverse effect on our business, financial condition or results of operations.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentrations of credit risk consist principally of cash investments and accounts receivable. We place our cash investments with high quality financial institutions and limit the amount of credit exposure to any one institution. Although we are directly affected by developments in the vehicle parts industry, management does not believe significant credit risk exists. With respect to accounts receivable, such receivables are primarily from warehouse distributors and major retailers in the automotive aftermarket industry located in the U.S. We perform ongoing credit evaluations of our customers’ financial conditions. A significant portion of our net sales are concentrated from our largest individual customers. For further information on net sales to our largest customers and our concemtration our customer risk, see Note , “Industry Segment and Geographic Data.”
Foreign Cash Balances	Foreign Cash Balances Substantially all of the cash and cash equivalents, including foreign cash balances, at December 31, 2020 and 2019 were uninsured. Foreign cash balances at December 31, 2020 and 2019 were and , respectively.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Standards that were adopted Standard Description Date of adoption Effects on the financial statements or other significant matters ASU 2017-04 Simplifying the Test for Goodwill Impairment This standard simplifies the accounting for goodwill impairment. ASU 2017-04 removes Step 2 of the test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. January 1, 2020 We applied the new standard in the fourth quarter of 2020 when we performed our annual impairment test of goodwill. In performing our impairment test, we concluded that the fair value for each of our reporting units exceeded its carrying value and, as such, the adoption of the new standard did not impact the manner in which we performed the 2020 goodwill quantitative impairment test. ASU 2016-13 Financial Instruments – Credit Losses This standard creates a single model to measure impairment of financial assets, which includes trade accounts receivable. An estimate of expected credit losses on trade accounts receivable over their contractual life will be required to be recorded at inception, based on historical information, current conditions, and reasonable and supportable forecasts. January 1, 2020 The adoption of the standard did not have a material impact on the manner in which we estimate our allowance for doubtful accounts on trade accounts receivable, or on our consolidated financial statements. Standards that are not yet adopted as of December 31, 2020 The following table provides a brief description of recently issued accounting pronouncements that have not yet been adopted as of December 31, 2020 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 ASU 2019-12 Income Taxes (Topic 740 ) : Simplifying the Accounting for Income Taxes This standard is intended to simplify the accounting for income taxes by removing certain ASC Topic 740 exceptions in performing intra-period tax allocations among income statement components, in calculating certain deferred tax liabilities related to outside basis differences, and in calculating income taxes in interim periods with year-to-date losses. In addition, this standard is also intended to improve consistency and add simplification by clarifying and amending the reporting of franchise taxes and other taxes partially based on income, the recognition of deferred income taxes related to the step-up in tax basis goodwill, and the reporting in interim periods of the recognition of the enactment of tax laws or rate changes. January 1, 2021, with early adoption permitted The new standard clarifies the accounting for income taxes in certain technical areas that will not impact all companies. We anticipate that the adoption of the technical clarifications in this standard will not materially impact our accounting for income taxes, our consolidated financial statements and related disclosures. The new standard can be applied on a prospective basis in certain instances and in other instances on a retrospective or modified retrospective basis. ASU 2020-04 Reference Rate Reform (Topic 848 ) : Facilitation of the Effects of Reference Rate Reform on Financial Reporting This 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. Effective 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 revolving credit facility and 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.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies [Abstract]
Estimated Useful Lives of Property, Plant and Equipment	Property, plant and equipment are recorded at historical cost and are depreciated using the straight-line method of depreciation over the estimated useful lives as follows: Estimated Life Buildings 25 to 33-1/2 Building improvements 10 to 25 years Machinery and equipment 5 to years Tools, dies and auxiliary equipment 3 to years Furniture and fixtures 3 to years

Business Acquisitions and Inv_2

Business Acquisitions and Investments (Tables)	12 Months Ended
	Dec. 31, 2020
Business Acquisitions and Investments [Abstract]
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 $ 38,427 Assets acquired and liabilities assumed: Inventory $ 3,331 Property, plant and equipment, net 45 Intangible assets 24,650 Goodwill 10,401 Net assets acquired $ 38,427

Restructuring and Integration_2

Restructuring and Integration Expense (Tables)	12 Months Ended
	Dec. 31, 2020
Restructuring and Integration Expense [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 and for the years ended December 31, 2020 and 2019, consisted of the following (in thousands): Workforce Reduction Other Exit Costs Total Exit activity liability at December 31, 2018 $ 742 $ — $ 742 Restructuring and integration costs: Amounts provided for during 2019 (1) — 2,585 2,585 Cash payments (406 ) (1,688 ) (2,094 ) Reclassification of environmental liability (1) — (386 ) (386 ) Reclassification of inventory reserves — (511 ) (511 ) Exit activity liability at December 31, 2019 $ 336 $ — $ 336 Restructuring and integration costs: Amounts provided for during 2020 (1) — 464 464 Cash payments (157 ) (214 ) (371 ) Reclassification of environmental liability (1) — (250 ) (250 ) Exit activity liability at December 31, 2020 $ 179 $ — $ 179 (1) Included in restructuring and integration costs in 2020 and 2019 is a $ million and $ million increase, respectively, in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location. The environmental liability has been reclassed to accrued liabilities as of December 31, 2020 and 2019 , respectively

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2020
Inventories [Abstract]
Inventories	December 31, 2020 December 31, 2019 (In thousands) Finished goods $ 225,523 $ 241,472 Work-in-process 10,711 11,138 Raw materials 109,268 115,611 Subtotal 345,502 368,221 Unreturned customer inventories 19,632 19,722 Total inventories $ 365,134 $ 387,943

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	December 31, 2020 2019 (In thousands) Land, buildings and improvements $ 38,833 $ 38,299 Machinery and equipment 148,578 142,531 Tools, dies and auxiliary equipment 60,102 54,843 Furniture and fixtures 30,347 30,470 Leasehold improvements 11,948 11,711 Construction-in-progress 13,691 11,271 Total property, plant and equipment 303,499 289,125 Less accumulated depreciation 214,394 199,476 Total property, plant and equipment, net $ 89,105 $ 89,649

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Quantitative Disclosures Related to Operating Leases	The following tables provide quantitative disclosures related to our operating leases : December 31, Balance Sheet Information 2020 2019 Assets Operating lease right-of-use assets $ 29,958 $ 36,020 Liabilities Sundry payables and accrued expenses $ 8,719 $ 8,739 Noncurrent operating lease liabilities 22,450 28,376 Total operating lease liabilities $ 31,169 $ 37,115 Weighted Average Remaining Lease Term Operating leases 5 Years 5.6 Years Weighted Average Discount Rate Operating leases 3.6 % 3.7 % Year Ended, December 31, Expense and Cash Flow Information 2020 2019 Lease Expense Operating lease expense (a) $ 9,203 $ 8,940 Supplemental Cash Flow Information Cash Paid for the amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9,087 $ 8,758 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 2,986 $ 4,663 (a) Excludes expenses of approximately $2.5 million and 2.4 million for the years ended December 31, 2020 and 2019, 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	Minimum Lease Payments At December 31, 2020, we are obligated to make minimum lease payments through 2028, under operating leases, which are as follows (in thousands): 2021 $ 8,945 2022 7,231 2023 5,819 2024 3,931 2025 2,960 Thereafter 5,551 Total lease payments $ 34,437 Less: Interest (3,268 ) Present value of lease liabilities $ 31,169

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Other Intangible Assets [Abstract]
Carrying Value of Goodwill by Operating Segment	Changes in the carrying values of goodwill by operating segment during the years ended December 31, 2020 and 2019 are as follows (in thousands): Engine Management Temperature Control Total Balance as of December 31, 2018: Goodwill $ 91,539 $ 14,270 $ 105,809 Accumulated impairment losses (38,488 ) — (38,488 ) $ 53,051 $ 14,270 $ 67,321 Activity in 2019 Acquisition of Pollak Business of Stoneridge, Inc. 10,401 — 10,401 Foreign currency exchange rate change 80 — 80 Balance as of December 31, 2019: Goodwill 102,020 14,270 116,290 Accumulated impairment losses (38,488 ) — (38,488 ) $ 63,532 $ 14,270 $ 77,802 Activity in 2020 Foreign currency exchange rate change 35 — 35 Balance as of December 31, 2020: Goodwill 102,055 14,270 116,325 Accumulated impairment losses (38,488 ) — (38,488 ) $ 63,567 $ 14,270 $ 77,837
Acquired Identifiable Intangible Assets	Acquired identifiable intangible assets as of December 31, 2020 and 2019 consist of: December 31, 2020 2019 (In thousands) Customer relationships $ 111,701 $ 111,692 Trademarks and trade names 6,980 6,980 Non-compete agreements 3,272 3,276 Patents 723 723 Supply agreements 800 800 Leaseholds 160 160 Total acquired intangible assets 123,636 123,631 Less accumulated amortization (1) (70,221 ) (59,431 ) Net acquired intangible assets $ 53,415 $ 64,200 (1) Applies to all intangible assets, except for related trademarks and trade names totaling $2.6 million and $5.2 million as of December 31, 2020 and 2019, respectively, which have indefinite useful lives and, as such, are not being amortized.

Investments in Unconsolidated_2

Investments in Unconsolidated Affiliates (Tables)	12 Months Ended
	Dec. 31, 2020
Investments in Unconsolidated Affiliates [Abstract]
Investments in Unconsolidated Affiliates	December 31, 2020 2019 (In thousands) Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. $ 18,869 $ 18,099 Foshan FGD SMP Automotive Compressor Co. Ltd 15,036 13,633 Foshan Che Yijia New Energy Technology Co., Ltd. 4,174 4,883 Orange Electronic Co. Ltd 2,428 2,243 Total $ 40,507 $ 38,858

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Other Assets [Abstract]
Other Assets	December 31, 2020 2019 (In thousands) Deferred compensation $ 20,775 $ 17,519 Deferred financing costs, net 431 656 Other 617 660 Total other assets, net $ 21,823 $ 18,835

Credit Facilities and Long-Te_2

Credit Facilities and Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Credit Facilities and Long-Term Debt [Abstract]
Summary of Total Debt Outstanding	Total debt outstanding is summarized as follows: December 31, 2020 2019 (In thousands) Revolving credit facilities $ 10,000 $ 52,460 Other (1) 232 4,585 Total debt $ 10,232 $ 57,045 Current maturities of debt $ 10,135 $ 56,916 Long-term debt 97 129 Total debt $ 10,232 $ 57,045 (1) Other includes borrowings under our Polish overdraft facility of Zloty 0.4 million (approximately $0.1 million) and Zloty 16.7 million (approximately $4.4 million) as of December 31, 2020 and 2019, respectively.
Scheduled Amortization of Deferred Financing Cost for Future Years	We have deferred financing costs of approximately $0.7 million and $0.9 million as of December 31, 2020 and 2019, respectively. Deferred financing costs as of December 31, 2020 are related to our revolving credit facility. Scheduled amortization for future years, assuming no prepayments of principal is as follows: (In thousands) 2021 $ 225 2022 225 2023 206 Total amortization $ 656

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Stock-Based Compensation Plans [Abstract]
Restricted and Performance-Based Share Activity	Our restricted and performance-based share activity was as follows for the years ended December 31, 2020 and 2019: Shares Weighted Average Grant Date Fair Value per Share Balance at December 31, 2018 870,041 $ 34.59 Granted 204,650 42.05 Vested (188,693 ) 38.08 Forfeited (1) (33,458 ) 43.32 Balance at December 31, 2019 852,540 $ 35.26 Granted 208,200 38.21 Vested (161,054 ) 39.23 Forfeited (1) (60,000 ) 42.25 Balance at December 31, 2020 839,686 $ 34.77 ( 1 ) Due to the lack of achievement of performance targets, performance-based shares forfeited in the years ended December 31, 2020 and 2019 were shares and shares, respectively.

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2020
Employee Benefits [Abstract]
Defined Contribution Plan Matching Obligations	We maintain various defined contribution plans, which include profit sharing, and provide retirement benefits for substantially all of our employees. Matching obligations, in connection with the plans which are funded in cash and typically contributed to the plans in March of the following year, are as follows (in thousands): U.S. Defined Contribution Year ended December 31, 2020 $ 9,457 2019 9,080 2018 8,928

Other Non-Operating Income (E_2

Other Non-Operating Income (Expense), Net (Tables)	12 Months Ended
	Dec. 31, 2020
Other Non-Operating Income (Expense), Net [Abstract]
Components of Other Non-Operating Income (Expense)	The components of other non-operating income (expense), net are as follows: Year Ended December 31, 2020 2019 2018 (In thousands) Interest and dividend income $ 109 $ 97 $ 80 Equity income (loss) from joint ventures (1) 820 2,865 (768 ) Gain (loss) on foreign exchange (350 ) (502 ) (120 ) Postretirement plan net periodic benefit credit (cost) 27 25 262 Other non-operating income, net 206 102 135 Total other non-operating income (expense), net $ 812 $ 2,587 $ (411 ) (1) Year ended December 31, 2018 includes a noncash impairment charge of approximately $1.7 million related to our minority interest investment in Orange Electronic Co., Ltd. See Note 9, “Investments in Unconsolidated Affiliates” for additional information.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Income Tax Provision (Benefit)	The income tax provision (benefit) consists of the following (in thousands): Year Ended December 31, 2020 2019 2018 Current: Domestic $ 30,368 $ 14,632 $ 26,821 Foreign 4,064 3,019 3,180 Total current 34,432 17,651 30,001 Deferred: Domestic (7,418 ) 4,677 (10,132 ) Foreign (52 ) 417 108 Total deferred (7,470 ) 5,094 (10,024 ) Total income tax provision $ 26,962 $ 22,745 $ 19,977
Effective Income Tax Rate Reconciliation	Reconciliations between taxes at the U.S. Federal income tax rate and taxes at our effective income tax rate on earnings from continuing operations before income taxes are as follows (in thousands): Year Ended December 31, 2020 2019 2018 U.S. Federal income tax rate of 21% $ 22,550 $ 19,277 $ 16,135 Increase (decrease) in tax rate resulting from: State and local income taxes, net of federal income tax benefit 3,781 3,328 2,781 Income tax (tax benefits) attributable to foreign income 330 191 1,598 Other non-deductible items, net (563 ) (409 ) (559 ) Change in valuation allowance 864 358 22 Provision for income taxes $ 26,962 $ 22,745 $ 19,977
Components of Net Deferred Tax Assets and Liabilities	The following is a summary of the components of the net deferred tax assets and liabilities recognized in the accompanying consolidated balance sheets (in thousands): December 31, 2020 2019 Deferred tax assets: Inventories $ 12,773 $ 12,077 Allowance for customer returns 13,804 11,969 Postretirement benefits 42 50 Allowance for doubtful accounts 1,412 1,262 Accrued salaries and benefits 12,984 9,826 Tax credit carryforwards 1,451 609 Accrued asbestos liabilities 15,372 13,132 Other 170 148 58,008 49,073 Valuation allowance (1,621 ) (757 ) Total deferred tax assets 56,387 48,316 Deferred tax liabilities: Depreciation 7,710 7,706 Other 3,907 3,338 Total deferred tax liabilities 11,617 11,044 Net deferred tax assets $ 44,770 $ 37,272

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Reconciliations of the Earnings Available to Common Stockholders and the Shares used in Calculating Basic and Dilutive Net Earnings per Common Share	We present two calculations of earnings per common share. “Basic” earnings per common share equals net income divided by weighted average common shares outstanding during the period. “Diluted” earnings per common share equals net income divided by the sum of weighted average common shares outstanding during the period plus potentially dilutive common shares. Potentially dilutive common shares that are anti-dilutive are excluded from net earnings per common share. The following are reconciliations of the earnings available to common stockholders and the shares used in calculating basic and dilutive net earnings per common share (in thousands, except per share data): Year Ended December 31, 2020 2019 2018 Basic Net Earnings Per Common Share: Earnings from continuing operations $ 80,417 $ 69,051 $ 56,854 Loss from discontinued operations (23,024 ) (11,134 ) (13,851 ) Net earnings available to common stockholders $ 57,393 $ 57,917 $ 43,003 Weighted average common shares outstanding 22,374 22,378 22,456 Earnings from continuing operations per common share $ 3.59 $ 3.09 $ 2.53 Loss from discontinued operations per common share (1.02 ) (0.50 ) (0.62 ) Basic net earnings per common share $ 2.57 $ 2.59 $ 1.91 Diluted Net Earnings Per Common Share: Earnings from continuing operations $ 80,417 $ 69,051 $ 56,854 Loss from discontinued operations (23,024 ) (11,134 ) (13,851 ) Net earnings available to common stockholders $ 57,393 $ 57,917 $ 43,003 Weighted average common shares outstanding 22,374 22,378 22,456 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock and performance-based stock 452 440 476 Weighted average common shares outstanding – Diluted 22,826 22,818 22,932 Earnings from continuing operations per common share $ 3.52 $ 3.03 $ 2.48 Loss from discontinued operations per common share (1.01 ) (0.49 ) (0.60 ) Diluted net earnings per common share $ 2.51 $ 2.54 $ 1.88
Anti-dilutive Securities Excluded from Computation of Earnings per Share	The shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or because they were excluded under the treasury method (in thousands): 2020 2019 2018 Restricted and performance shares 268 255 249

Industry Segment and Geograph_2

Industry Segment and Geographic Data (Tables)	12 Months Ended
	Dec. 31, 2020
Industry Segment and Geographic Data [Abstract]
Sales and Operating Income by Operating Segments	The accounting policies of each segment are the same as those described in the summary of significant accounting policies (see Note 1). The following tables contain financial information for each reportable segment (in thousands): Year Ended December 31, 2020 2019 2018 Net sales (a): Engine Management $ 835,685 $ 849,161 $ 803,487 Temperature Control 281,954 278,355 278,456 Other 10,949 10,397 10,108 Total net sales $ 1,128,588 $ 1,137,913 $ 1,092,051 Intersegment sales (a) Engine Management $ 15,952 $ 19,569 $ 23,367 Temperature Control 6,162 6,545 8,160 Other (22,114 ) (26,114 ) (31,527 ) Total intersegment sales $ — $ — $ — Depreciation and Amortization: Engine Management $ 20,417 $ 19,463 $ 17,858 Temperature Control 4,035 4,568 4,704 Other 1,871 1,778 1,542 Total depreciation and amortization $ 26,323 $ 25,809 $ 24,104 Operating income (loss) Engine Management $ 111,217 $ 103,808 $ 84,844 Temperature Control 21,296 13,667 14,586 Other (23,618 ) (22,980 ) (18,162 ) Total operating income $ 108,895 $ 94,495 $ 81,268 Investment in unconsolidated affiliates: Engine Management $ 2,428 $ 2,243 $ 2,158 Temperature Control 38,079 36,615 30,311 Other — — — Total investment in unconsolidated affiliates $ 40,507 $ 38,858 $ 32,469 Capital expenditures Engine Management $ 13,496 $ 12,593 $ 11,435 Temperature Control 1,988 2,273 7,245 Other 2,336 1,319 1,461 Total capital expenditures $ 17,820 $ 16,185 $ 20,141 Total assets Engine Management $ 618,210 $ 594,953 $ 532,092 Temperature Control 230,111 216,591 202,411 Other 108,219 92,310 84,613 Total assets $ 956,540 $ 903,854 $ 819,116 (a) Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.
Reconciliation of Segment Operating Income to Net Earnings	Reconciliation of segment operating income to net earnings: Year Ended December 31, 2020 2019 2018 (In thousands) Operating income $ 108,895 $ 94,495 $ 81,268 Other non-operating income (expense), net 812 2,587 (411 ) Interest expense 2,328 5,286 4,026 Earnings from continuing operations before taxes 107,379 91,796 76,831 Income tax expense 26,962 22,745 19,977 Earnings from continuing operations 80,417 69,051 56,854 Discontinued operations, net of tax (23,024 ) (11,134 ) (13,851 ) Net earnings $ 57,393 $ 57,917 $ 43,003
Long-lived Assets by Geographical Areas	December 31, 2020 2019 2018 Long-lived assets (a) (In thousands) United States $ 241,053 $ 253,384 $ 198,494 Canada 4,470 4,659 2,718 Mexico 10,586 12,036 4,012 Asia 40,621 38,942 32,470 Europe 16,504 17,004 16,880 Total long-lived assets $ 313,234 $ 326,025 $ 254,574 (a) Long-lived assets are attributed to countries based upon the location of the assets.

Net Sales (Tables)

Net Sales (Tables)	12 Months Ended
	Dec. 31, 2020
Net Sales [Abstract]
Disaggregation of Net Sales	The following tables provide disaggregation of net sales information for the years ended December 31, 2020, 2019 and 2018 (in thousands): Year Ended December 31, 2020 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 738,521 $ 268,680 $ — $ 1,007,201 Canada 25,842 11,679 10,949 48,470 Mexico 19,336 271 — 19,607 Asia 35,079 165 — 35,244 Europe 12,255 351 — 12,606 Other foreign 4,652 808 — 5,460 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Major Product Group: Ignition, emission control, fuel and safety related system products $ 691,722 $ — $ 8,172 $ 699,894 Wire and cable 143,963 — 159 144,122 Compressors — 163,071 812 163,883 Other climate control parts — 118,883 1,806 120,689 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Major Sales Channel: Aftermarket $ 682,874 $ 255,716 $ 10,949 $ 949,539 OE/OES 133,942 25,070 — 159,012 Export 18,869 1,168 — 20,037 Total $ 835,685 $ 281,954 $ 10,949 $ 1,128,588 Year Ended December 31, 2019 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 760,134 $ 263,769 $ — $ 1,023,903 Canada 27,439 12,322 10,397 50,158 Mexico 19,330 705 — 20,035 Asia 24,838 130 — 24,968 Europe 13,341 534 — 13,875 Other foreign 4,079 895 — 4,974 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Major Product Group: Ignition, emission control, fuel and safety related system products $ 705,994 $ — $ 6,381 $ 712,375 Wire and cable 143,167 — 477 143,644 Compressors — 160,485 1,338 161,823 Other climate control parts — 117,870 2,201 120,071 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Major Sales Channel: Aftermarket $ 702,872 $ 248,420 $ 10,397 $ 961,689 OE/OES 124,665 27,915 — 152,580 Export 21,624 2,020 — 23,644 Total $ 849,161 $ 278,355 $ 10,397 $ 1,137,913 Year Ended December 31, 2018 (a) Engine Management Temperature Control Other (b) Total Geographic Area: United States $ 714,402 $ 261,628 $ — $ 976,030 Canada 33,475 13,877 10,108 57,460 Mexico 19,397 817 — 20,214 Asia 17,869 279 — 18,148 Europe 13,054 630 — 13,684 Other foreign 5,290 1,225 — 6,515 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 Major Product Group: Ignition, emission control, fuel and safety related system products $ 648,270 $ — $ 5,829 $ 654,099 Wire and cable 155,217 — 454 155,671 Compressors — 148,416 1,853 150,269 Other climate control parts — 130,040 1,972 132,012 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 Major Sales Channel: Aftermarket $ 684,242 $ 246,112 $ 10,108 $ 940,462 OE/OES 97,205 30,275 — 127,480 Export 22,040 2,069 — 24,109 Total $ 803,487 $ 278,456 $ 10,108 $ 1,092,051 (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.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies [Abstract]
Rent Expense	Total rent expense for the three years ended December 31, 2020 was as follows (in thousands): Total Real Estate Other 2020 (1) $ 11,669 $ 8,290 $ 3,379 2019 (1) 11,382 7,909 3,473 2018 12,605 9,272 3,333 (1) In and $ million for the years ended December 31, 2020 and 2019 , 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 no
Changes in Product Warranties	The following table provides the changes in our product warranties: December 31, 2020 2019 (In thousands) Balance, beginning of period $ 17,175 $ 16,663 Liabilities accrued for current year sales 87,116 99,304 Settlements of warranty claims (86,628 ) (98,792 ) Balance, end of period $ 17,663 $ 17,175

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Data (Unaudited) [Abstract]
Quarterly Financial Information	2020 Quarter Ended Dec. 31 Sept. 30 June 30 Mar. 31 (In thousands, except per share amounts) Net sales $ 282,738 $ 343,609 $ 247,939 $ 254,302 Gross profit 94,154 107,748 64,358 70,395 Earnings from continuing operations 22,742 36,212 11,842 9,621 Loss from discontinued operations, net of taxes (13,568 ) (7,587 ) (875 ) (994 ) Net earnings $ 9,174 $ 28,625 $ 10,967 $ 8,627 Net earnings from continuing operations per common share: Basic $ 1.02 $ 1.62 $ 0.53 $ 0.43 Diluted $ 1.00 $ 1.59 $ 0.52 $ 0.42 Net earnings per common share: Basic $ 0.41 $ 1.28 $ 0.49 $ 0.38 Diluted $ 0.40 $ 1.26 $ 0.48 $ 0.38 2019 Quarter Ended Dec. 31 Sept. 30 June 30 Mar. 31 (In thousands, except per share amounts) Net sales $ 241,252 $ 307,723 $ 305,172 $ 283,766 Gross profit 72,844 92,088 88,905 77,963 Earnings from continuing operations 12,738 22,654 20,555 13,104 Loss from discontinued operations, net of taxes (1,220 ) (7,903 ) (1,123 ) (888 ) Net earnings $ 11,518 $ 14,751 $ 19,432 $ 12,216 Net earnings from continuing operations per common share: Basic $ 0.57 $ 1.01 $ 0.92 $ 0.58 Diluted $ 0.56 $ 1.00 $ 0.90 $ 0.57 Net earnings per common share: Basic $ 0.51 $ 0.66 $ 0.87 $ 0.54 Diluted $ 0.50 $ 0.65 $ 0.85 $ 0.53

Summary of Significant Accoun_4

Summary of Significant Accounting Policies, Principles of Consolidation, Inventories and PPE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies [Abstract]
Equity ownership in entities included in consolidated financial statements, minimum	50.00%
Inventory reserve	$ 49.4	$ 45.8
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	25 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	33 years 6 months
Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	10 years
Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	25 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	5 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	12 years
Tools, Dies and Auxiliary Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	3 years
Tools, Dies and Auxiliary Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	8 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful life	12 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies, Product Warranty and Overstock Returns and Accounting for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Product Warranty and Overstock Returns [Abstract]
Product warranty period	90 days
Accounting for Income Taxes [Abstract]
Valuation allowance	$ 1,621	$ 757
Net deferred tax asset	$ 44,770	$ 37,272

Summary of Significant Accoun_6

Summary of Significant Accounting Policies, Concentrations of Credit Risk (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)Customer	Dec. 31, 2019USD ($)
Concentration Risk [Abstract]
Foreign cash balance | $	$ 16.4	$ 8.5
Customer Concentration Risk [Member]
Concentration Risk [Abstract]
Number of largest individual customers | Customer	5

Business Acquisitions and Inv_3

Business Acquisitions and Investments (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	May 31, 2019	Apr. 30, 2019	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Aug. 31, 2019	Dec. 31, 2018
Business Combination, Description [Abstract]
Investment in unconsolidated affiliates				$ 40,507	$ 38,858		$ 32,469
Assets acquired and liabilities assumed [Abstract]
Goodwill				$ 77,837	$ 77,802		$ 67,321
Jiangsu Che Yijia New Energy Technology Co., Ltd. [Member]
Business Combination, Description [Abstract]
Percentage of equity interest acquired in joint venture						29.00%
Investment in unconsolidated affiliates						$ 5,100
Pollak business of Stoneridge, Inc. [Member]
Allocation of the Purchase Price, Assets Acquired and Liabilities Assumed [Abstract]
Acquisition of assets and liabilities		$ 40,000
Post-closing adjustments amount	$ 1,600
Purchase Price		38,427
Assets acquired and liabilities assumed [Abstract]
Inventory		3,331
Property, plant and equipment, net		45
Intangible assets		24,650
Goodwill		10,401
Net assets acquired		38,427
Incremental net sales			$ 9,500
Pollak business of Stoneridge, Inc. [Member] | Customer Relationships [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		7,200
Estimated useful life of intangible assets				15 years
Pollak business of Stoneridge, Inc. [Member] | Trademarks [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		200
Estimated useful life of intangible assets				10 years
Pollak business of Stoneridge, Inc. [Member] | Non-Compete Agreements [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		100
Estimated useful life of intangible assets				5 years
Pollak business of Stoneridge, Inc. [Member] | OE/OES [Member] | Customer Relationships [Member]
Assets acquired and liabilities assumed [Abstract]
Intangible assets		$ 17,200
Estimated useful life of intangible assets				10 years

Restructuring and Integration_3

Restructuring and Integration Expense (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Plant Rationalization Program [Abstract]
Gain on sale of property, plant and equipment		$ 0		$ 0		$ 3,997
Net proceeds from sale of Grapevine, Texas facility		0		4,801		0
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		336		742
Restructuring and integration costs provided for during the period		464	[1]	2,585	[1]	4,510
Cash payments		(371)		(2,094)
Reclassification of environment liability	[1]	(250)		(386)
Reclassification of inventory reserves				(511)
Exit activity liability, end of period		179		336		742
Plant Rationalization Program [Member]
Plant Rationalization Program [Abstract]
Gain on sale of property, plant and equipment						3,900
Net proceeds from sale of Grapevine, Texas facility				4,800
Restructuring and integration activities [Roll Forward]
Cash payments		(111,000)
Exit activity liability, end of period		65,000
Orlando Plant Rationalization Program [Member]
Restructuring and integration activities [Roll Forward]
Cash payments		(46,000)
Exit activity liability, end of period		114,000
Pollak Relocation [Member]
Restructuring and integration activities [Roll Forward]
Cash payments		(214,000)
Exit activity liability, end of period		0
Workforce Reduction [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		336		742
Restructuring and integration costs provided for during the period	[1]	0		0
Cash payments		(157)		(406)
Reclassification of environment liability	[1]	0		0
Reclassification of inventory reserves				0
Exit activity liability, end of period		179		336		742
Other Exit Costs [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		0		0
Restructuring and integration costs provided for during the period	[1]	464		2,585
Cash payments		(214)		(1,688)
Reclassification of environment liability	[1]	(250)		(386)
Reclassification of inventory reserves				(511)
Exit activity liability, end of period		$ 0		$ 0		$ 0
[1]	Included in restructuring and integration costs in 2020 and 2019 is a $0.3 million and $0.4 million increase, respectively, in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location.  The environmental liability has been reclassed to accrued liabilities as of December 31, 2020 and 2019, respectively.

Sale of Receivables (Details)

Sale of Receivables (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 695.1	$ 719
Charge related to sale of receivables	$ 12.2	$ 22	$ 24.4

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Inventories [Abstract]
Finished goods	$ 225,523	$ 241,472
Work-in-process	10,711	11,138
Raw materials	109,268	115,611
Subtotal	345,502	368,221
Unreturned customer inventories	19,632	19,722
Total inventories	$ 365,134	$ 387,943

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 303,499	$ 289,125
Less accumulated depreciation	214,394	199,476
Total property, plant and equipment, net	89,105	89,649
Depreciation expense	17,800	17,400	$ 16,100
Land, Buildings and Improvements [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	38,833	38,299
Machinery and Equipment [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	148,578	142,531
Tools, Dies and Auxiliary Equipment [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	60,102	54,843
Furniture and Fixtures [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	30,347	30,470
Leasehold Improvements [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	11,948	11,711
Construction-in-Progress [Member]
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 13,691	$ 11,271

Leases (Details)

Leases (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Quantitative Lease Disclosures [Abstract]
Renewal option period		5 years
Assets [Abstract]
Operating lease right-of-use assets		$ 29,958	$ 36,020
Liabilities [Abstract]
Sundry payables and accrued expenses		8,719	8,739
Noncurrent operating lease liabilities		22,450	28,376
Total operating lease liabilities		$ 31,169	$ 37,115
Operating Leases [Abstract]
Weighted average remaining lease term		5 years	5 years 7 months 6 days
Weighted average discount rate		3.60%	3.70%
Lease Expense [Abstract]
Operating lease expense	[1]	$ 9,203	$ 8,940
Excluded expenses of non lease		2,500	2,400
Cash paid for the amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases		9,087	8,758
Right-of-use assets obtained in exchange for new lease obligations [Abstract]
Operating leases		2,986	4,663
Minimum Lease Payments [Abstract]
2021		8,945
2022		7,231
2023		5,819
2024		3,931
2025		2,960
Thereafter		5,551
Total lease payments		34,437
Less: Interest		(3,268)
Total operating lease liabilities		$ 31,169	$ 37,115
Maximum [Member]
Quantitative Lease Disclosures [Abstract]
Remaining operating lease terms		10 years
[1]	Excludes expenses of approximately $2.5 million and 2.4 million for the years ended December 31, 2020 and 2019, 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.

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets, Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill by operating segment [Abstract]
Goodwill gross, beginning balance	$ 116,290	$ 105,809
Goodwill accumulated impairment losses, Beginning balance	(38,488)	(38,488)
Goodwill net, beginning balance	77,802	67,321
Goodwill foreign currency exchange rate change	35	80
Goodwill gross, ending balance	116,325	116,290
Goodwill accumulated impairment losses, Ending balance	(38,488)	(38,488)
Goodwill net, ending balance	77,837	77,802
Pollak business of Stoneridge, Inc. [Member]
Goodwill by operating segment [Abstract]
Goodwill acquisition		10,401
Engine Management [Member]
Goodwill by operating segment [Abstract]
Goodwill gross, beginning balance	102,020	91,539
Goodwill accumulated impairment losses, Beginning balance	(38,488)	(38,488)
Goodwill net, beginning balance	63,532	53,051
Goodwill foreign currency exchange rate change	35	80
Goodwill gross, ending balance	102,055	102,020
Goodwill accumulated impairment losses, Ending balance	(38,488)	(38,488)
Goodwill net, ending balance	63,567	63,532
Engine Management [Member] | Pollak business of Stoneridge, Inc. [Member]
Goodwill by operating segment [Abstract]
Goodwill acquisition		10,401
Temperature Control [Member]
Goodwill by operating segment [Abstract]
Goodwill gross, beginning balance	14,270	14,270
Goodwill accumulated impairment losses, Beginning balance	0	0
Goodwill net, beginning balance	14,270	14,270
Goodwill foreign currency exchange rate change	0	0
Goodwill gross, ending balance	14,270	14,270
Goodwill accumulated impairment losses, Ending balance	0	0
Goodwill net, ending balance	$ 14,270	14,270
Temperature Control [Member] | Pollak business of Stoneridge, Inc. [Member]
Goodwill by operating segment [Abstract]
Goodwill acquisition		$ 0

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		$ 123,636	$ 123,631
Less accumulated amortization	[1]	(70,221)	(59,431)
Net acquired intangible assets		53,415	64,200
Intangible assets acquired [Abstract]
Intangible asset impairment		2,600	0	$ 0
Amortization of acquired intangible assets [Abstract]
Amortization expense		8,200	8,000	7,600
Estimated amortization expense in year 2021		6,800
Estimated amortization expense in year 2022		5,200
Estimated amortization expense in year 2023		5,000
Estimated amortization expense in years 2024		4,900
Estimated amortization expense in years 2025 through 2034		28,900
Other Intangible Assets [Abstract]
Amortization expense		8,200	8,000	7,600
Customer Relationships [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		111,701	111,692
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		6,980	6,980
Intangible assets acquired [Abstract]
Amount of acquired indefinite-lived intangible assets		2,600	5,200
Intangible asset impairment		2,600
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		3,272	3,276
Patents [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		723	723
Supply Agreement [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		800	800
Leaseholds [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total acquired intangible assets		160	160
Computer Software [Member]
Amortization of acquired intangible assets [Abstract]
Amortization expense		200
Other Intangible Assets [Abstract]
Other intangible assets		17,000	16,900
Accumulated computer software amortization		(16,400)	(16,200)
Amortization of computer software		300	$ 400	$ 400
Amortization expense		$ 200
Computer Software [Member] | Minimum [Member]
Other Intangible Assets [Abstract]
Estimated useful life of intangible assets		3 years
Computer Software [Member] | Maximum [Member]
Other Intangible Assets [Abstract]
Estimated useful life of intangible assets		10 years
[1]	Applies to all intangible assets, except for related trademarks and trade names totaling $2.6 million and $5.2 million as of December 31, 2020 and 2019, respectively, which have indefinite useful lives and, as such, are not being amortized.

Investments in Unconsolidated_3

Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2018	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 31, 2019	Mar. 31, 2018	Nov. 30, 2017	Apr. 30, 2014	Jan. 31, 2013
Investments in and Advances to Affiliates, Balance [Abstract]
Investments in unconsolidated affiliates			$ 40,507	$ 38,858
Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. [Member]
Investments in and Advances to Affiliates, Balance [Abstract]
Investments in unconsolidated affiliates			$ 18,869	18,099				$ 4,200		$ 14,000
Percentage of equity interest acquired			65.00%					15.00%		50.00%
Purchase price payment					$ 4,200
Purchases from equity method investment			$ 12,400	12,700
Foshan FGD SMP Automotive Compressor Co. Ltd [Member]
Investments in and Advances to Affiliates, Balance [Abstract]
Investments in unconsolidated affiliates			15,036	13,633					$ 12,500
Percentage of equity interest acquired									50.00%
Purchase price payment	$ 5,700					$ 6,800
Purchases from equity method investment			17,400	12,800
Foshan Che Yijia New Energy Technology Co., Ltd. [Member]
Investments in and Advances to Affiliates, Balance [Abstract]
Investments in unconsolidated affiliates			4,174	4,883			$ 5,100
Percentage of equity interest acquired							29.00%
Orange Electronic Co., Ltd [Member]
Investments in and Advances to Affiliates, Balance [Abstract]
Investments in unconsolidated affiliates			$ 2,428	2,243							$ 6,300
Percentage of equity interest acquired			19.40%								25.00%
Purchases from equity method investment			$ 4,400	$ 3,500
Impairment charge		$ 1,700			$ 1,700

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Assets [Abstract]
Deferred compensation	$ 20,775	$ 17,519
Deferred financing costs, net	431	656
Other	617	660
Total other assets, net	$ 21,823	$ 18,835

Credit Facilities and Long-Te_3

Credit Facilities and Long-Term Debt, Total Debt Outstanding (Details) $ in Thousands, zł in Millions		Dec. 31, 2020USD ($)	Dec. 31, 2020PLN (zł)	Dec. 31, 2019USD ($)	Dec. 31, 2019PLN (zł)
Credit Facilities and Long-Term Debt [Abstract]
Revolving credit facilities		$ 10,000		$ 52,460
Other	[1]	232		4,585
Total debt		10,232		57,045
Current maturities of debt		10,135		56,916
Long-term debt		97		129
HSBC Bank Polska S.A. [Member]
Line of Credit Facility [Abstract]
Overdraft facility		$ 100	zł 0.4	$ 4,400	zł 16.7
[1]	Other includes borrowings under our Polish overdraft facility of Zloty 0.4 million (approximately $0.1 million) and Zloty 16.7 million (approximately $4.4 million) as of December 31, 2020 and 2019, respectively.

Credit Facilities and Long-Te_4

Credit Facilities and Long-Term Debt, Revolving Credit Facility (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Line of Credit Facility [Abstract]
Outstanding borrowings under credit facility	$ 10,000	$ 52,460
JPMorgan Chase Bank Credit Facility [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	250,000
Line of credit facility, accordian feature	$ 50,000
Maturity date	Dec. 31, 2023
Additional available borrowing capacity	$ 237,100
Outstanding borrowings under credit facility	10,000	52,500
Outstanding letters of credit	$ 2,800	$ 3,100
Weighted average interest rate		3.50%
JPMorgan Chase Bank Credit Facility [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1.25%
JPMorgan Chase Bank Credit Facility [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	1.75%
JPMorgan Chase Bank Credit Facility [Member] | Alternate Base Rate [Member]
Line of Credit Facility [Abstract]
Outstanding borrowings under credit facility		$ 12,500
Weighted average interest rate		5.00%
Average daily loan balance outstanding	$ 1,500	$ 1,700
JPMorgan Chase Bank Credit Facility [Member] | Alternate Base Rate [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	0.25%
JPMorgan Chase Bank Credit Facility [Member] | Alternate Base Rate [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Margin on variable rate	0.75%
JPMorgan Chase Bank Credit Facility [Member] | Fixed Assets Included in Borrowing Base [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Borrowing base	$ 25,000
Borrowing base percentage	10.00%
JPMorgan Chase Bank Credit Facility [Member] | Fixed Assets Not Included in Borrowing Base [Member]
Line of Credit Facility [Abstract]
Borrowing base	$ 31,250
Borrowing base percentage	12.50%
JPMorgan Chase Bank Credit Facility [Member] | Direct Borrowings [Member]
Line of Credit Facility [Abstract]
Outstanding borrowings under credit facility	$ 10,000	$ 40,000
Weighted average interest rate	1.40%	2.30%
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Coverage ratio	1
Revolving Credit Facility [Member] | Pay Cash Dividend [Member]
Line of Credit Facility [Abstract]
Agreement permissions	$ 20,000
Revolving Credit Facility [Member] | Stock Repurchase [Member]
Line of Credit Facility [Abstract]
Agreement permissions	20,000
Revolving Credit Facility [Member] | Stock Repurchase [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Borrowing base	25,000
Revolving Credit Facility [Member] | Cash Dividend And Stock Repurchases [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Agreement permissions	20,000
Revolving Credit Facility [Member] | CANADA [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 10,000

Credit Facilities and Long-Te_5

Credit Facilities and Long-Term Debt, Polish Overdraft Facility (Details) - HSBC Bank Polska S.A. [Member] zł in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020PLN (zł)	Dec. 31, 2020USD ($)	Dec. 31, 2019PLN (zł)	Dec. 31, 2019USD ($)
Line of Credit Facility [Abstract]
Maximum borrowing capacity	zł 30	$ 8
Overdraft facility expiration date	Dec. 31, 2021
Overdraft facility	zł 0.4	$ 0.1	zł 16.7	$ 4.4
1M 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, Deferred Financing Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Financing Costs [Abstract]
Deferred financing costs	$ 656	$ 900
Amortization for Future Years [Abstract]
2021	225
2022	225
2023	206
Total amortization	$ 656	$ 900

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Feb. 28, 2021
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock repurchased during period	$ 13,482	$ 10,738	$ 14,483
Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized (in shares)	500,000
Preferred stock, par value (in dollars per share)	$ 20
Preferred stock, shares outstanding (in shares)	0	0
Series A Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized (in shares)	30,000
Preferred stock, voting rights	Each share of the Series A Preferred Stock shall entitle the holder to one thousand votes
Stock Repurchase Program 2018 [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock repurchase program, authorized amount			$ 20,000
Stock repurchased during period (in shares)		221,748	201,484
Stock repurchased during period		$ 10,700	$ 9,300
Stock Repurchase Program 2020 [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock repurchase program, authorized amount	$ 20,000
Stock repurchased during period (in shares)	323,867
Stock repurchased during period	$ 13,500
Stock repurchase program, remaining authorized amount	$ 6,500
Stock Repurchase Program 2021 [Member] | Subsequent Event [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock repurchase program, authorized amount				$ 20,000
Stock repurchase program, remaining authorized amount				$ 26,500

Stock-Based Compensation Plan_2

Stock-Based Compensation Plans (Details) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2020USD ($)Type$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Stock-based compensation expense, gross | $		$ 8,101	$ 6,917	$ 7,998
Restricted Stock and Performance Share Grants [Abstract]
Number of types of restricted stock | Type		2
Restricted Shares [Member] | Minimum [Member]
Restricted Stock and Performance Share Grants [Abstract]
Expiration of vesting period		3 years
Restricted Shares [Member] | Employees [Member]
Restricted Stock and Performance Share Grants [Abstract]
Estimated forfeitures		5.00%
Restricted Shares [Member] | Executives [Member]
Restricted Stock and Performance Share Grants [Abstract]
Estimated forfeitures		0.00%
Restricted Shares [Member] | Directors [Member]
Restricted Stock and Performance Share Grants [Abstract]
Estimated forfeitures		0.00%
Restricted Shares [Member] | Age 60 [Member] | Executives [Member]
Restricted Stock and Performance Share Grants [Abstract]
Vesting percentage		25.00%
Vesting period before reaching age limit		2 months
Restricted Shares [Member] | Age 63 [Member] | Executives [Member]
Restricted Stock and Performance Share Grants [Abstract]
Vesting percentage		25.00%
Vesting period before reaching age limit		2 months
Restricted Shares [Member] | Age 65 [Member] | Executives [Member]
Restricted Stock and Performance Share Grants [Abstract]
Vesting percentage		100.00%
Vesting period before reaching age limit		2 months
Performance-Based Shares [Member]
Restricted Stock and Performance Share Grants [Abstract]
Measuring period for performance-based shares		3 years
Restricted and performance-based stock, shares [Roll Forward]
Forfeited (in shares)		(50,250)	(20,508)
Performance-Based Shares [Member] | Minimum [Member]
Restricted Stock and Performance Share Grants [Abstract]
Expiration of vesting period		3 years
Restricted and Performance-Based Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Stock-based compensation expense, gross | $		$ 7,800	$ 6,500	7,400
Stock-based compensation expense, net of tax | $		5,800	4,900	$ 5,500
Restricted Stock and Performance Share Grants [Abstract]
Unamortized compensation expense | $		$ 15,200	$ 15,900
Restricted and performance-based stock, shares [Roll Forward]
Beginning of period (in shares)		852,540	870,041
Granted (in shares)		208,200	204,650
Vested (in shares)		(161,054)	(188,693)
Forfeited (in shares)	[1]	(60,000)	(33,458)
End of period (in shares)		839,686	852,540	870,041
Restricted and performance-based stock, weighted average grant date fair value per share [Roll Forward]
Beginning of period (in dollars per share) | $ / shares		$ 35.26	$ 34.59
Granted (in dollars per share) | $ / shares		38.21	42.05
Vested (in dollars per share) | $ / shares		39.23	38.08
Forfeited (in dollars per share) | $ / shares		42.25	43.32
End of period (in dollars per share) | $ / shares		$ 34.77	$ 35.26	$ 34.59
Weighted-average grant date fair value | $		$ 29,200	$ 30,100	$ 30,100
Restricted and Performance-Based Shares [Member] | Employees [Member]
Restricted Stock and Performance Share Grants [Abstract]
Weighted average period of recognition for unrecognized compensation expense		4 years 7 months 6 days	4 years 7 months 6 days
Restricted and Performance-Based Shares [Member] | Directors [Member]
Restricted Stock and Performance Share Grants [Abstract]
Weighted average period of recognition for unrecognized compensation expense		3 months 18 days	3 months 18 days
Restricted and Performance-Based Shares [Member] | Executives and Directors [Member] | Minimum [Member]
Restricted Stock and Performance Share Grants [Abstract]
Holding period for restricted and performance shares issued		1 year
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 Stock and Performance Share Grants [Abstract]
Holding period for restricted and performance shares issued		2 years
Post vesting holding period for restricted and performance shares issued		2 years
2016 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Shares authorized for issuance (in shares)		1,100,000
2016 Omnibus Incentive Plan [Member] | Restricted Shares [Member]
Restricted and performance-based stock, shares [Roll Forward]
Granted (in shares)		153,200
2016 Omnibus Incentive Plan [Member] | Performance-Based Shares [Member]
Restricted and performance-based stock, shares [Roll Forward]
Granted (in shares)		55,000
2016 Omnibus Incentive Plan [Member] | Restricted and Performance-Based Shares [Member]
Restricted Stock and Performance Share Grants [Abstract]
Restricted and performance-based stock grants issued, net of forfeitures (in shares)		926,271
Common stock available for future grants (in shares)		173,729
[1]	Due to the lack of achievement of performance targets, performance-based shares forfeited in the years ended December 31, 2020 and 2019 were 50,250 shares and 20,508 shares, respectively.

Employee Benefits (Details)

Employee Benefits (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)Employeeshares	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Defined Contribution Plans [Abstract]
U.S defined contribution	$ 9,457	$ 9,080	$ 8,928
Employer discretionary contribution amount	600	300	300
Employee Stock Ownership Plan (ESOP), Debt Structure [Abstract]
Provision for expense in connection with ESOP	2,300	2,500	2,600
Net periodic benefit cost	$ (27)	(25)	(262)
Postretirement Medical Benefits [Abstract]
Number of former union employees covered by the plan | Employee	16
Supplemental Executive Retirement Plan [Member]
Employee Stock Ownership Plan (ESOP), Debt Structure [Abstract]
Benefit obligation outstanding	$ 0	0
Net periodic benefit cost	$ 0	$ 0	$ 0
Employee Stock Ownership Plan and Trust (ESOP) [Member]
Employee Stock Ownership Plan (ESOP), Debt Structure [Abstract]
Additional shares contributed to ESOP (in shares) | shares	44,700
Shares released from trust (in shares) | shares	44,700
Total remaining balance of shares in the ESOP (in shares) | shares	200

Other Non-Operating Income (E_3

Other Non-Operating Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Non-Operating Income (Expense), Net [Abstract]
Interest and dividend income		$ 109	$ 97	$ 80
Equity income (loss) from joint ventures		820	2,865	(768)	[1]
Gain (loss) on foreign exchange		(350)	(502)	(120)
Postretirement plan net periodic benefit credit (cost)		27	25	262
Other non-operating income, net		206	102	135
Total other non-operating income (expense), net		$ 812	$ 2,587	(411)
Orange Electronic Co., Ltd [Member]
Asset Impairment Charges [Abstract]
Impairment charges	$ 1,700			$ 1,700
[1]	Year ended December 31, 2018 includes a noncash impairment charge of approximately $1.7 million related to our minority interest investment in Orange Electronic Co., Ltd.  See Note 9, “Investments in Unconsolidated Affiliates” for additional information.

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current [Abstract]
Domestic	$ 30,368	$ 14,632	$ 26,821
Foreign	4,064	3,019	3,180
Total current	34,432	17,651	30,001
Deferred [Abstract]
Domestic	(7,418)	4,677	(10,132)
Foreign	(52)	417	108
Total deferred	(7,470)	5,094	(10,024)
Total income tax provision	26,962	22,745	19,977
Reconciliations Between Taxes at the U.S. Federal Income Tax Rate and Taxes at our Effective Income Tax Rate on Earnings [Abstract]
U.S. Federal income tax rate of 21%	22,550	19,277	16,135
Increase (decrease) in tax rate resulting from [Abstract]
State and local income taxes, net of federal income tax benefit	3,781	3,328	2,781
Income tax (tax benefits) attributable to foreign income	330	191	1,598
Other non-deductible items, net	(563)	(409)	(559)
Change in valuation allowance	864	358	22
Total income tax provision	$ 26,962	$ 22,745	$ 19,977
U.S. Federal income tax rate	21.00%	21.00%	21.00%
Deferred tax assets [Abstract]
Inventories	$ 12,773	$ 12,077
Allowance for customer returns	13,804	11,969
Postretirement benefits	42	50
Allowance for doubtful accounts	1,412	1,262
Accrued salaries and benefits	12,984	9,826
Tax credit carryforwards	1,451	609
Accrued asbestos liabilities	15,372	13,132
Other	170	148
Deferred tax assets, gross	58,008	49,073
Valuation allowance	(1,621)	(757)
Total deferred tax assets	56,387	48,316
Deferred tax liabilities [Abstract]
Depreciation	7,710	7,706
Other	3,907	3,338
Total deferred tax liabilities	11,617	11,044
Net deferred tax assets	44,770	37,272
Valuation allowance, remaining amount	1,600
Income Tax Contingency [Abstract]
Recognized uncertain tax positions	$ 0	$ 0	$ 0
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Abstract]
Operating Loss Carryforwards, Expiration Dates	Dec. 31, 2028
Tax credit carryforward	$ 1,500
Foreign Tax Authority [Member] | Minimum [Member]
Income Tax Contingency [Abstract]
Period for statutes of limitations	2 years
Foreign Tax Authority [Member] | Maximum [Member]
Income Tax Contingency [Abstract]
Period for statutes of limitations	6 years
State and Local [Member]
Income Tax Contingency [Abstract]
Open Tax Years	2016 2017 2018 2019
Canada Tax Authority [Member]
Income Tax Contingency [Abstract]
Open Tax Years	2016 2017 2018 2019
Hong Kong Tax Authority [Member]
Income Tax Contingency [Abstract]
Open Tax Years	2015 2016 2017 2018 2019
Mexican Tax Authority [Member]
Income Tax Contingency [Abstract]
Open Tax Years	2016 2017 2018 2019
Poland Tax Authority [Member]
Income Tax Contingency [Abstract]
Open Tax Years	2015 2016 2017 2018 2019

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Basic Net Earnings Per Common Share [Abstract]
Earnings from continuing operations	$ 22,742	$ 36,212	$ 11,842	$ 9,621	$ 12,738	$ 22,654	$ 20,555	$ 13,104	$ 80,417	$ 69,051	$ 56,854
Loss from discontinued operations, net of taxes	$ (13,568)	$ (7,587)	$ (875)	$ (994)	$ (1,220)	$ (7,903)	$ (1,123)	$ (888)	(23,024)	(11,134)	(13,851)
Net earnings available to common stockholders									$ 57,393	$ 57,917	$ 43,003
Weighted average common shares outstanding (in shares)									22,374,123	22,378,414	22,456,480
Earnings from continuing operations per common share (in dollars per share)	$ 1.02	$ 1.62	$ 0.53	$ 0.43	$ 0.57	$ 1.01	$ 0.92	$ 0.58	$ 3.59	$ 3.09	$ 2.53
Loss from discontinued operations per common share (in dollars per share)									(1.02)	(0.50)	(0.62)
Net earnings per common share - Basic (in dollars per share)	$ 0.41	$ 1.28	$ 0.49	$ 0.38	$ 0.51	$ 0.66	$ 0.87	$ 0.54	$ 2.57	$ 2.59	$ 1.91
Diluted Net Earnings Per Common Share [Abstract]
Earnings from continuing operations	$ 22,742	$ 36,212	$ 11,842	$ 9,621	$ 12,738	$ 22,654	$ 20,555	$ 13,104	$ 80,417	$ 69,051	$ 56,854
Loss from discontinued operations, net of taxes	$ (13,568)	$ (7,587)	$ (875)	$ (994)	$ (1,220)	$ (7,903)	$ (1,123)	$ (888)	(23,024)	(11,134)	(13,851)
Net earnings available to common stockholders									$ 57,393	$ 57,917	$ 43,003
Weighted average common shares outstanding (in shares)									22,374,123	22,378,414	22,456,480
Plus incremental shares from assumed conversions [Abstract]
Dilutive effect of restricted stock and performance-based stock (in shares)									452,000	440,000	476,000
Weighted average common shares outstanding - Diluted (in shares)									22,825,885	22,818,451	22,931,723
Earnings from continuing operations per common share (in dollars per share)	$ 1	$ 1.59	$ 0.52	$ 0.42	$ 0.56	$ 1	$ 0.90	$ 0.57	$ 3.52	$ 3.03	$ 2.48
Loss from discontinued operations per common share (in dollars per share)									(1.01)	(0.49)	(0.60)
Net earnings per common share - Diluted (in dollars per share)	$ 0.40	$ 1.26	$ 0.48	$ 0.38	$ 0.50	$ 0.65	$ 0.85	$ 0.53	$ 2.51	$ 2.54	$ 1.88
Restricted and Performance Shares [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)									268,000	255,000	249,000

Industry Segment and Geograph_3

Industry Segment and Geographic Data, Reportable Segments (Details) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)Segment		Dec. 31, 2019USD ($)		Dec. 31, 2018USD ($)
Financial information for reportable segment [Abstract]
Number of reportable operating segments | Segment										2
Net sales		$ 282,738	$ 343,609	$ 247,939	$ 254,302	$ 241,252	$ 307,723	$ 305,172	$ 283,766	$ 1,128,588	[1]	$ 1,137,913	[1]	$ 1,092,051	[1]
Depreciation and amortization										26,323		25,809		24,104
Operating income (loss)										108,895		94,495		81,268
Investment in unconsolidated affiliates		40,507				38,858				40,507		38,858		32,469
Capital expenditures										17,820		16,185		20,141
Total assets		956,540				903,854				956,540		903,854		819,116
Intersegment Revenues [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									0		0		0
Engine Management [Member] | Reportable Segments [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									835,685		849,161		803,487
Depreciation and amortization										20,417		19,463		17,858
Operating income (loss)										111,217		103,808		84,844
Investment in unconsolidated affiliates		2,428				2,243				2,428		2,243		2,158
Capital expenditures										13,496		12,593		11,435
Total assets		618,210				594,953				618,210		594,953		532,092
Engine Management [Member] | Intersegment Revenues [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									15,952		19,569		23,367
Temperature Control [Member] | Reportable Segments [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									281,954		278,355		278,456
Depreciation and amortization										4,035		4,568		4,704
Operating income (loss)										21,296		13,667		14,586
Investment in unconsolidated affiliates		38,079				36,615				38,079		36,615		30,311
Capital expenditures										1,988		2,273		7,245
Total assets		230,111				216,591				230,111		216,591		202,411
Temperature Control [Member] | Intersegment Revenues [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									6,162		6,545		8,160
Other [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									10,949		10,397		10,108
Depreciation and amortization										1,871		1,778		1,542
Operating income (loss)										(23,618)		(22,980)		(18,162)
Investment in unconsolidated affiliates		0				0				0		0		0
Capital expenditures										2,336		1,319		1,461
Total assets		$ 108,219				$ 92,310				108,219		92,310		84,613
Other [Member] | Intersegment Revenues [Member]
Financial information for reportable segment [Abstract]
Net sales	[1]									$ (22,114)		$ (26,114)		$ (31,527)
[1]	Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

Industry Segment and Geograph_4

Industry Segment and Geographic Data, Operating Income to Earnings (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of segment operating income to net earnings [Abstract]
Operating Income										$ 108,895	$ 94,495	$ 81,268
Other non-operating income (expense), net										812	2,587	(411)
Interest expense										2,328	5,286	4,026
Earnings from continuing operations before taxes										107,379	91,796	76,831
Income tax expense										26,962	22,745	19,977
Earnings from continuing operations		$ 22,742	$ 36,212	$ 11,842	$ 9,621	$ 12,738	$ 22,654	$ 20,555	$ 13,104	80,417	69,051	56,854
Discontinued operations, net of tax		(13,568)	(7,587)	(875)	(994)	(1,220)	(7,903)	(1,123)	(888)	(23,024)	(11,134)	(13,851)
Net earnings		9,174	$ 28,625	$ 10,967	$ 8,627	11,518	$ 14,751	$ 19,432	$ 12,216	57,393	57,917	43,003
Long-lived assets [Abstract]
Long-lived assets	[1]	313,234				326,025				313,234	326,025	254,574
United States [Member]
Long-lived assets [Abstract]
Long-lived assets	[1]	241,053				253,384				241,053	253,384	198,494
Canada [Member]
Long-lived assets [Abstract]
Long-lived assets	[1]	4,470				4,659				4,470	4,659	2,718
Mexico [Member]
Long-lived assets [Abstract]
Long-lived assets	[1]	10,586				12,036				10,586	12,036	4,012
Asia [Member]
Long-lived assets [Abstract]
Long-lived assets	[1]	40,621				38,942				40,621	38,942	32,470
Europe [Member]
Long-lived assets [Abstract]
Long-lived assets	[1]	$ 16,504				$ 17,004				$ 16,504	$ 17,004	$ 16,880
[1]	Long-lived assets are attributed to countries based upon the location of the assets.

Industry Segment and Geograph_5

Industry Segment and Geographic Data, Customer Concentration (Details) $ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2020USD ($)

Sep. 30, 2020USD ($)

Jun. 30, 2020USD ($)

Mar. 31, 2020USD ($)

Dec. 31, 2019USD ($)

Sep. 30, 2019USD ($)

Jun. 30, 2019USD ($)

Mar. 31, 2019USD ($)

Dec. 31, 2020USD ($)Customer

Dec. 31, 2019USD ($)

Dec. 31, 2018USD ($)

Customer Concentration [Abstract]

Revenues

$ 282,738

$ 343,609

$ 247,939

$ 254,302

$ 241,252

$ 307,723

$ 305,172

$ 283,766

$ 1,128,588

[1]

$ 1,137,913

[1]

$ 1,092,051

[1]

Large Retail Customer [Member] | Engine Management [Member]

Customer Concentration [Abstract]

Revenues

$ 140,000

Customer Concentration Risk [Member]

Customer Concentration [Abstract]

Number of largest individual customers | Customer

5

Net Sales [Member] | Customer Concentration Risk [Member] | Five Largest Individual Customers [Member]

Customer Concentration [Abstract]

Concentration risk, percentage

68.00%

69.00%

70.00%

Net Sales [Member] | Customer Concentration Risk [Member] | O' Reilly [Member]

Customer Concentration [Abstract]

Concentration risk, percentage

26.00%

Net Sales [Member] | Customer Concentration Risk [Member] | NAPA [Member]

Customer Concentration [Abstract]

Concentration risk, percentage

15.00%

Net Sales [Member] | Customer Concentration Risk [Member] | Advance [Member]

Customer Concentration [Abstract]

Concentration risk, percentage

14.00%

Net Sales [Member] | Customer Concentration Risk [Member] | AutoZone [Member]

Customer Concentration [Abstract]

Concentration risk, percentage

11.00%

[1]

Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

Net Sales (Details)

Net Sales (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	$ 1,128,588	$ 1,137,913	$ 1,092,051
Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	949,539	961,689	940,462
OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	159,012	152,580	127,480
Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	20,037	23,644	24,109
Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	699,894	712,375	654,099
Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	144,122	143,644	155,671
Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	163,883	161,823	150,269
Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	120,689	120,071	132,012
United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	1,007,201	1,023,903	976,030
Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	48,470	50,158	57,460
Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	19,607	20,035	20,214
Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	35,244	24,968	18,148
Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	12,606	13,875	13,684
Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	5,460	4,974	6,515
Engine Management [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	835,685	849,161	803,487
Engine Management [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	682,874	702,872	684,242
Engine Management [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	133,942	124,665	97,205
Engine Management [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	18,869	21,624	22,040
Engine Management [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	691,722	705,994	648,270
Engine Management [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	143,963	143,167	155,217
Engine Management [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0
Engine Management [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0
Engine Management [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	738,521	760,134	714,402
Engine Management [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	25,842	27,439	33,475
Engine Management [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	19,336	19,330	19,397
Engine Management [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	35,079	24,838	17,869
Engine Management [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	12,255	13,341	13,054
Engine Management [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	4,652	4,079	5,290
Temperature Control [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	281,954	278,355	278,456
Temperature Control [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	255,716	248,420	246,112
Temperature Control [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	25,070	27,915	30,275
Temperature Control [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	1,168	2,020	2,069
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
Temperature Control [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0	0
Temperature Control [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	163,071	160,485	148,416
Temperature Control [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	118,883	117,870	130,040
Temperature Control [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	268,680	263,769	261,628
Temperature Control [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	11,679	12,322	13,877
Temperature Control [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	271	705	817
Temperature Control [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	165	130	279
Temperature Control [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	351	534	630
Temperature Control [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	808	895	1,225
Other [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	10,949	10,397	10,108
Other [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	10,949	10,397	10,108
Other [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0
Other [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	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]	8,172	6,381	5,829
Other [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	159	477	454
Other [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	812	1,338	1,853
Other [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	1,806	2,201	1,972
Other [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0
Other [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	10,949	10,397	10,108
Other [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0
Other [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0
Other [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0	0
Other [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	$ 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.

Commitments and Contingencies,

Commitments and Contingencies, Rent (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Rent [Abstract]
Total rent expense	$ 11,669	[1]	$ 11,382	[1]	$ 12,605
Expenses related to non lease components	2,500		2,400
Real Estate [Member]
Rent [Abstract]
Total rent expense	8,290	[1]	7,909	[1]	9,272
Other [Member]
Rent [Abstract]
Total rent expense	$ 3,379	[1]	$ 3,473	[1]	$ 3,333
[1]	Includes expenses of approximately $2.5 million and $2.4 million for the years ended December 31, 2020 and 2019, 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.

Commitments and Contingencies_2

Commitments and Contingencies, Warranties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Warranties [Abstract]
Warranty expense	$ 87,100	$ 99,300	$ 85,900
Changes in product warranties [Roll forward]
Balance, beginning of period	17,175	16,663
Liabilities accrued for current year sales	87,116	99,304
Settlements of warranty claims	(86,628)	(98,792)
Balance, end of period	$ 17,663	$ 17,175	$ 16,663

Commitments and Contingencies_3

Commitments and Contingencies, Letters of Credit and Asbestos (Details) $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended			232 Months Ended
	Nov. 30, 2020USD ($)	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)Claim	Dec. 31, 2020USD ($)ClaimOfficer	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2020USD ($)Claim	Aug. 31, 2020USD ($)
Letters of Credit and Asbestos [Abstract]
Number of key officers | Officer				1
Accrued asbestos liabilities			$ 55,226	$ 55,226	$ 49,696		$ 55,226
Financial Standby Letter of Credit [Member]
Letters of Credit and Asbestos [Abstract]
Outstanding letters of credit with certain vendors			$ 2,800	$ 2,800			$ 2,800
Asbestos [Member]
Letters of Credit and Asbestos [Abstract]
Pending claims, approximate number | Claim			1,560	1,560			1,560
Payment for settled claims and awards related damages, including interest							$ 48,300
Accrued asbestos liabilities	$ 63,000	$ 58,100
Incremental pre-tax provision	$ 17,000	$ 8,700
Asbestos [Member] | Minimum [Member]
Letters of Credit and Asbestos [Abstract]
Range of possible loss			$ 63,000	$ 63,000			63,000	$ 58,100
Asbestos [Member] | Maximum [Member]
Letters of Credit and Asbestos [Abstract]
Range of possible loss			99,100	99,100			99,100	$ 99,300
Asbestos [Member] | California Case [Member]
Letters of Credit and Asbestos [Abstract]
Compensatory damages judgment			$ 7,600
Compensatory damages judgment interest percentage			10.00%
Asbestos [Member] | Discontinued Operations [Member]
Letters of Credit and Asbestos [Abstract]
Total operating cash outflows related to discontinued operations				(16,400)	$ (7,600)	$ (5,100)
Asbestos [Member] | Discontinued Operations [Member] | Minimum [Member]
Letters of Credit and Asbestos [Abstract]
Range of possible loss			$ 48,700	48,700			48,700
Asbestos [Member] | Discontinued Operations [Member] | Maximum [Member]
Letters of Credit and Asbestos [Abstract]
Range of possible loss			$ 95,400	$ 95,400			$ 95,400

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Selected quarterly financial information [Abstract]
Net sales	$ 282,738	$ 343,609	$ 247,939	$ 254,302	$ 241,252	$ 307,723	$ 305,172	$ 283,766	$ 1,128,588	[1]	$ 1,137,913	[1]	$ 1,092,051	[1]
Gross profit	94,154	107,748	64,358	70,395	72,844	92,088	88,905	77,963	336,655		331,800		312,787
Earnings from continuing operations	22,742	36,212	11,842	9,621	12,738	22,654	20,555	13,104	80,417		69,051		56,854
Loss from discontinued operations, net of taxes	(13,568)	(7,587)	(875)	(994)	(1,220)	(7,903)	(1,123)	(888)	(23,024)		(11,134)		(13,851)
Net earnings	$ 9,174	$ 28,625	$ 10,967	$ 8,627	$ 11,518	$ 14,751	$ 19,432	$ 12,216	$ 57,393		$ 57,917		$ 43,003
Net earnings from continuing operations per common share [Abstract]
Basic (in dollars per share)	$ 1.02	$ 1.62	$ 0.53	$ 0.43	$ 0.57	$ 1.01	$ 0.92	$ 0.58	$ 3.59		$ 3.09		$ 2.53
Diluted (in dollars per share)	1	1.59	0.52	0.42	0.56	1	0.90	0.57	3.52		3.03		2.48
Net earnings per common share [Abstract]
Basic (in dollars per share)	0.41	1.28	0.49	0.38	0.51	0.66	0.87	0.54	2.57		2.59		1.91
Diluted (in dollars per share)	$ 0.40	$ 1.26	$ 0.48	$ 0.38	$ 0.50	$ 0.65	$ 0.85	$ 0.53	$ 2.51		$ 2.54		$ 1.88
[1]	Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of year	$ 5,212,000		$ 5,687,000	$ 4,967,000
Charged to costs and expenses	11,880,000		10,365,000	10,684,000
Other	0		0	0
Deductions	11,270,000		10,840,000	9,964,000
Balance at end of year	5,822,000		5,212,000	5,687,000
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of year	4,244,000		4,488,000	3,824,000
Charged to costs and expenses	392,000		(295,000)	325,000
Other	0		0	0
Deductions	230,000		(51,000)	(339,000)
Balance at end of year	4,406,000		4,244,000	4,488,000
Allowance for Discounts [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of year	968,000		1,199,000	1,143,000
Charged to costs and expenses	11,488,000		10,660,000	10,359,000
Other	0		0	0
Deductions	11,040,000		10,891,000	10,303,000
Balance at end of year	1,416,000		968,000	1,199,000
Allowance for Sales Returns [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of year	35,240,000		33,417,000	30,950,000
Charged to costs and expenses	135,448,000		136,777,000	132,390,000
Other	0	[1]	0	6,670,000	[1]
Deductions	129,706,000		134,954,000	136,593,000
Balance at end of year	$ 40,982,000		$ 35,240,000	$ 33,417,000
[1]	The other addition to the allowance for sales returns represents the cumulative effect of the changes made to our consolidated balance sheet as of January 1, 2018 for the adoption of ASU 2014-09, Revenue from Contracts with Customers.