Accumulated Other Comprehensive Income, Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Details About Accumulated Other Comprehensive Income Components [Abstract]
Interest expense		$ 3,621	$ 3,656	$ 10,766	$ 6,282
Other non-operating income, net		1,732	1,513	2,759	4,889
Earnings from continuing operations before taxes		32,917	31,472	74,723	87,030
Income tax expense		7,995	8,280	18,656	22,407
Net earnings attributable to SMP	[1]	6,659	$ 8,846	27,714	$ 47,418
Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Earnings from continuing operations before taxes		(662)		(1,712)
Income tax expense		(173)		(447)
Net earnings attributable to SMP		(489)		(1,265)
Unrealized Derivative Gains (Losses) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Interest expense	[2]	(657)		(1,696)
Unrecognized Postretirement Benefit Costs (Credit) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Details About Accumulated Other Comprehensive Income Components [Abstract]
Other non-operating income, net	[3]	$ (5)		$ (16)

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

[2] Unrecognized accumulated other comprehensive income (loss) related to the cash flow interest rate hedge is reclassified to earnings and reported as part of interest expense in our consolidated statements of operations when the interest payments on the underlying borrowings are recognized.

[3] Unrecognized accumulated other comprehensive income (loss) related to our post retirement plans is reclassified to earnings and included in the computation of net periodic postretirement benefit costs, which are included in other non-operating income, net in our consolidated statements of operations (see Note 12, “Employee Benefits,” for additional information).