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

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

Long-Term Debt (Details) (USD $)	3 Months Ended
Long-Term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Long-term debt
Less current maturities	$ 1,629,000us-gaap_LongTermDebtCurrent	$ 1,629,000us-gaap_LongTermDebtCurrent
Long-term Debt, Excluding Current Maturities, Total	186,064,000us-gaap_LongTermDebtNoncurrent	186,471,000us-gaap_LongTermDebtNoncurrent
Term loan facility
Long-term debt
Long-term debt	187,693,000	188,100,000
Less current maturities	1,629,000	1,629,000
Long-term Debt, Excluding Current Maturities, Total	186,064,000	186,471,000
Long-term debt, additional disclosure
Unamortized discount on issuance of debt	1,832,000	1,900,000
Revolving credit facility \| Maximum
Long-term debt, additional disclosure
Facilities consolidation expenditure allowed	15,000,000
Swingline Loan
Long-term debt, additional disclosure
Maximum borrowing capacity	5,000,000
Senior credit facilities \| Term loan facility
Long-term debt, additional disclosure
Borrowings under senior credit facility	190,000,000
Percentage of net cash proceeds of certain asset sales, certain insurance or condemnation events, requirement for additional principal prepayments	100.00%
Period before end of the fiscal year, for additional principal prepayments of debt, from excess cash flow	150 days
Percentage of excess cash flow paid as additional principal prepayments	50.00%
Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, one	0.00%
Senior credit facilities \| Term loan facility \| Maximum
Long-term debt, additional disclosure
Additional term loan commitments	80,000,000
Debt ratio	3.25
Senior credit facilities \| Term loan facility \| First option \| Minimum
Long-term debt, additional disclosure
Additional fixed interest rate spread (as a percent)	1.00%
Additional interest margin added to fixed and variable rates (as a percent)	1.00%
Senior credit facilities \| Term loan facility \| First option \| Base rate
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	3.25%
Senior credit facilities \| Term loan facility \| First option \| Federal funds
Long-term debt, additional disclosure
Variable rate basis	Federal funds
Interest rate added to variable rate (as a percent)	0.50%
Senior credit facilities \| Term loan facility \| First option \| One month London Interbank Offered Rate
Long-term debt, additional disclosure
Variable rate basis	LIBOR for a one month interest period
Senior credit facilities \| Term loan facility \| First option \| Prime
Long-term debt, additional disclosure
Variable rate basis	Prime Rate
Senior credit facilities \| Term loan facility \| Second option \| Minimum
Long-term debt, additional disclosure
Additional fixed interest rate spread (as a percent)	1.00%
Senior credit facilities \| Term loan facility \| Second option \| Base rate
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	4.25%
Senior credit facilities \| Revolving credit facility
Long-term debt, additional disclosure
Borrowings under senior credit facility	100,000,000
Outstanding borrowings	0
Remaining borrowing availability	70,297,000
Fixed charge coverage ratio to be maintained if certain minimum availability under the credit facility is not maintained.	1.0
Senior credit facilities \| Revolving credit facility \| Maximum
Long-term debt, additional disclosure
Annual acquisitions allowed	12,500,000
Senior credit facilities \| Revolving credit facility \| Fixed rate \| Maximum
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	2.00%
Senior credit facilities \| Revolving credit facility \| First option \| Fixed rate \| Minimum
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	1.50%
Senior credit facilities \| Revolving credit facility \| Second option \| Federal funds
Long-term debt, additional disclosure
Variable rate basis	Federal funds
Interest rate added to variable rate (as a percent)	0.50%
Senior credit facilities \| Revolving credit facility \| Second option \| Fixed rate \| Maximum
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	1.00%
Senior credit facilities \| Revolving credit facility \| Second option \| Fixed rate \| Minimum
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)	0.50%
Senior credit facilities \| Revolving credit facility \| Second option \| One month London Interbank Offered Rate
Long-term debt, additional disclosure
Variable rate basis	LIBOR for a one month interest period
Interest rate added to variable rate (as a percent)	1.00%
Senior credit facilities \| Revolving credit facility \| Second option \| Prime
Long-term debt, additional disclosure
Variable rate basis	Prime Rate
Senior credit facilities \| Letter of Credit
Long-term debt, additional disclosure
Maximum borrowing capacity	$ 10,000,000