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

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Summary (Details)

Long-Term Debt - Summary (Details) $ in Thousands					3 Months Ended	6 Months Ended	9 Months Ended
Long-Term Debt - Summary (Details) $ in Thousands	Aug. 17, 2017	Aug. 16, 2017	Feb. 08, 2017	Feb. 07, 2017	Sep. 30, 2017 USD ($)	Aug. 16, 2017	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jul. 15, 2016 USD ($)	Dec. 31, 2014 USD ($)
Long-term debt
Less current maturities					$ 2,749		$ 2,749		$ 2,829
Long-term debt, less current maturities					305,354		305,354		306,726
Deferred financing costs, net					3,415		3,415		4,033
Total long-term debt					305,354		305,354		306,726
Long-term debt, additional disclosure
Financing costs							1,608	$ 2,250
Inventories - truck chassis floor plan					6,034		6,034		3,939
Term loan facility
Long-term debt
Notes and Loans Payable, Current, Total					311,518		311,518		313,588
Less current maturities					2,749		2,749		2,829
Long-term debt, less current maturities					308,769		308,769		310,759
Long-term debt, additional disclosure
Unamortized discount on issuance of debt					1,660		1,660		1,953		$ 1,900
Outstanding borrowings					311,518		311,518		313,588
Revolving credit facility
Long-term debt, additional disclosure
Outstanding borrowings					$ 23,000		23,000		0
Incremental Term Loan Facility
Long-term debt, additional disclosure
Unamortized discount on issuance of debt										$ 650
Senior credit facilities
Long-term debt, additional disclosure
Floor plan financing arrangements										$ 20,000
Senior credit facilities \| Term loan facility
Long-term debt, additional disclosure
Financing costs							$ 932
Percentage of net cash proceeds of certain asset sales, certain insurance or condemnation events, requirement for additional principal prepayments					100.00%
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
Debt ratio					3.25		3.25
Period before end of the fiscal year, for additional principal prepayments of debt, from excess cash flow					150 days
Senior credit facilities \| Term loan facility \| ABR
Long-term debt, additional disclosure
Interest rate margin (as a percent)	2.00%		2.50%	3.25%		2.50%
Senior credit facilities \| Term loan facility \| Euro dollar
Long-term debt, additional disclosure
Interest rate margin (as a percent)	3.00%	3.50%	3.50%	4.25%
Senior credit facilities \| Term loan facility \| First option
Long-term debt, additional disclosure
Interest rate margin (as a percent)		0.50%		0.50%
Fixed interest rate base (as a percent)		2.00%		2.50%
Additional interest margin added to fixed and variable rates (as a percent)		1.00%		1.00%
Additional fixed interest rate spread (as a percent)		2.00%		2.00%
Senior credit facilities \| Term loan facility \| Second option
Long-term debt, additional disclosure
Fixed interest rate base (as a percent)		3.00%		3.50%
Additional fixed interest rate spread (as a percent)		1.00%		1.00%
Senior credit facilities \| Revolving credit facility
Long-term debt, additional disclosure
Borrowings under senior credit facility					$ 100,000		$ 100,000
Remaining borrowing availability					$ 74,186		74,186		$ 89,664
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
Unused portion of permitted capital expenditures					12,500
Facilities consolidation expenditure allowed					$ 15,000
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 description					Federal funds
Interest rate margin (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 description					LIBOR for a one month interest period
Interest rate margin (as a percent)					1.00%
Senior credit facilities \| Revolving credit facility \| Second option \| Prime
Long-term debt, additional disclosure
Variable rate basis description					Prime Rate
Senior credit facilities \| Amended term loan facility
Long-term debt, additional disclosure
Financing costs					$ 676		676
Letter of Credit
Long-term debt, additional disclosure
Maximum borrowing capacity					10,000		10,000
Swingline loan
Long-term debt, additional disclosure
Maximum borrowing capacity					$ 5,000		$ 5,000