CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	[1]	$ 322,831	$ 276,553
Cost of sales		232,991	192,769
Gross profit		89,840	83,784
Selling, general and administrative expenses		62,884	54,460
Restructuring and integration expenses		41	0
Operating income		26,915	29,324
Other non-operating income, net		1,449	635
Interest expense		805	209
Earnings from continuing operations before income taxes		27,559	29,750
Provision for income taxes		7,005	7,586
Earnings from continuing operations		20,554	22,164
Loss from discontinued operations, net of income taxes		(1,116)	(1,164)
Net earnings		19,438	21,000
Net earnings (loss) attributable to noncontrolling interest		(8)	0
Net earnings attributable to SMP	[2]	19,446	21,000
Net earnings attributable to SMP
Earnings from continuing operations		20,562	22,164
Discontinued operations		(1,116)	(1,164)
Net earnings attributable to SMP	[2]	$ 19,446	$ 21,000
Net earnings per common share - Basic:
Earnings from continuing operations (in dollars per share)		$ 0.94	$ 0.99
Discontinued operations (in dollars per share)		(0.06)	(0.05)
Net earnings per common share - Basic (in dollars per share)		0.88	0.94
Net earnings per common share - Diluted:
Earnings from continuing operations (in dollars per share)		0.91	0.97
Discontinued operations (in dollars per share)		(0.04)	(0.05)
Net earnings per common share - Diluted (in dollars per share)		0.87	0.92
Dividend declared per share (in dollars per share)		$ 0.27	$ 0.25
Average number of common shares (in shares)		21,978,507	22,317,959
Average number of common shares and dilutive common shares (in shares)		22,477,819	22,765,508

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

[2] Throughout this Form 10-Q, “SMP” refers to Standard Motor Products, Inc. and subsidiaries.