CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Net sales		$ 451,166	$ 413,379
Cost of sales		311,993	288,657
Gross profit		139,173	124,722
Selling, general and administrative expenses		104,837	99,845
Restructuring expenses		366	673
Other income, net		123	258
Operating income		34,093	24,462
Other non-operating income (loss), net		(1,279)	2,248
Interest expense		7,518	7,761
Earnings from continuing operations before income taxes		25,296	18,949
Provision for income taxes		6,826	5,069
Earnings from continuing operations		18,470	13,880
Loss from discontinued operations, net of income taxes		(1,185)	(1,139)
Net earnings		17,285	12,741
Net earnings attributable to noncontrolling interest		149	175
Net earnings attributable to SMP per common share	[1]	17,136	12,566
Net earnings (loss) attributable to SMP
Continuing operations		18,321	13,705
Discontinued operations		(1,185)	(1,139)
Net earnings attributable to SMP per common share	[1]	$ 17,136	$ 12,566
Basic:
Continuing operations (in dollars per share)		$ 0.83	$ 0.63
Discontinued operations (in dollars per share)		(0.06)	(0.06)
Net earnings attributable to SMP per common share (in dollars per share)		0.77	0.57
Diluted:
Continuing operations (in dollars per share)		0.81	0.61
Discontinued operations (in dollars per share)		(0.06)	(0.05)
Net earnings attributable to SMP per common share (in dollars per share)		0.75	0.56
Dividend declared per common share (in dollars shares)		$ 0.33	$ 0.31
Weighted average number of common shares, basic (in shares)		22,167,006	21,886,810
Weighted average number of common shares, diluted (in shares)		22,719,732	22,319,868

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