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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Long-Term Debt - Swaps (Details)

v3.3.0.814

Long-Term Debt - Swaps (Details)	3 Months Ended
Long-Term Debt - Swaps (Details)	Mar. 31, 2015 USD ($) contract	Sep. 30, 2015 USD ($) item
Derivative Instrument Detail [Abstract]
Derivative Number of Contracts \| contract	3
Interest Rate Derivative Liabilities, at Fair Value		$ 1,888,000
Derivative Liability, Current		$ (1,888,000)
Interest rate swap
Derivative Instrument Detail [Abstract]
Number of financial institutions for which the entity is exposed to counterparty credit risk \| item		1
Interest Rate Swap Effective 29 March 2018 through 31 March 2020 [Member]
Derivative Instrument Detail [Abstract]
Derivative Liability, Notional Amount	$ 90,000,000
Derivative, Fixed Interest Rate		6.916%
Interest Rate Swap Effective 29 March 2018 through 31 March 2020 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Derivative Instrument Detail [Abstract]
Derivative, Basis Spread on Variable Rate		4.25%
Derivative, Floor Interest Rate		1.00%
Interest Rate Swap Effective 31 December 2015 through 29 March 2018 [Member]
Derivative Instrument Detail [Abstract]
Derivative Liability, Notional Amount	45,000,000
Derivative, Fixed Interest Rate		6.105%
Interest Rate Swap Effective 31 December 2015 through 29 March 2018 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Derivative Instrument Detail [Abstract]
Derivative, Basis Spread on Variable Rate		4.25%
Derivative, Floor Interest Rate		1.00%
Interest Rate Swap Effective 31 March 2020 through 30 June 2021 [Member]
Derivative Instrument Detail [Abstract]
Derivative Liability, Notional Amount	$ 135,000,000
Derivative, Fixed Interest Rate		7.168%
Interest Rate Swap Effective 31 March 2020 through 30 June 2021 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Derivative Instrument Detail [Abstract]
Derivative, Basis Spread on Variable Rate		4.25%
Derivative, Floor Interest Rate		1.00%

- Definition

Represents the number of financial institutions for which the entity is exposed to counterparty credit risk in relation to derivative instruments.

+ References

No definition available.

+ Details

Name:	plow_DerivativeCounterpartyRiskNumberOfFinancialInstitutions
Namespace Prefix:	plow_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of derivative contracts held by the entity during the period.

+ References

No definition available.

+ Details

Name:	plow_DerivativeNumberOfContracts
Namespace Prefix:	plow_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFloorInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_DerivativeInstrumentDetailAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611

+ Details

Name:	us-gaap_DerivativeLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959

+ Details

Name:	us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611

+ Details

Name:	us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plow_InterestRateSwapEffective29March2018Through31March2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plow_InterestRateSwapEffective31December2015Through29March2018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plow_InterestRateSwapEffective31March2020Through30June2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: