Douglas Dynamics, Inc. Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)	3 Months Ended		9 Months Ended
Income Taxes (Details)	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Taxes
Effective tax rate (as a percent)	38.10%	38.50%	33.90%	37.20%