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

Employee Retirement Plans - Pension Retirement Plans (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Nov. 30, 2019	Oct. 31, 2019	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Pension Plan Termination Loss, after Tax and Reclassification Adjustment, Attributable to Parent	$ 6,380		$ (6,380)
Douglas Dynamics LLC Pension Plan For Hourly Employees
Defined Benefit Plan Disclosure [Line Items]
Pension funding contributions made		$ 3,245
Defined Benefit Plan, Annuities Purchased Amount	4,767
Douglas Dynamics LLC Salaried Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension funding contributions made		$ 12,476
Defined Benefit Plan, Annuities Purchased Amount	$ 20,044

Amount of contribution received by defined benefit plan from employer which increases plan assets.