Douglas Dynamics, Inc. Annual report pursuant to Section 13 and 15(d)

Changes in Accumulated Other Comprehensive Loss by Component - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts reclassified from accumulated other comprehensive loss:
Interest expense, net									$ 11,839	$ 20,238	$ 16,782
Tax expense (benefit)									3,897	(12,276)	13,451
Reclassification net of tax	$ (8,816)	$ (7,030)	$ (14,103)	$ (742)	$ (18,162)	$ (9,230)	$ 103,859	$ 10,086	(30,188)	86,553	$ (48,527)
Other Postretirement Benefit Liability \| Amount reclassified from accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive loss:
Actuarial (gains) losses									(312)	(310)
Tax expense (benefit)									81	81
Reclassification net of tax									(231)	(229)
Unrealized Net Loss on Interest Rate Swap \| Interest rate swap \| Amount reclassified from accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive loss:
Interest expense, net									4,244	3,327
Tax expense (benefit)									(1,103)	(865)
Reclassification net of tax									$ 3,141	$ 2,462

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.