XML 77 R91.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 16 - Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Note 16 - Commitments and Contingencies (Details) [Line Items] |  |  |
Operating Leases, Rent Expense, Net | $ 4,102 us-gaap_OperatingLeasesRentExpenseNet | $ 2,457 us-gaap_OperatingLeasesRentExpenseNet | $ 2,870 us-gaap_OperatingLeasesRentExpenseNet
Amount Financed by Dealers | $ 26,100 gnrc_AmountFinancedByDealers | $ 24,300 gnrc_AmountFinancedByDealers |
Minimum [Member] |  |  |
Note 16 - Commitments and Contingencies (Details) [Line Items] |  |  |
Lease Term | 3 years |  |
Maximum [Member] |  |  |
Note 16 - Commitments and Contingencies (Details) [Line Items] |  |  |
Lease Term | 5 years |  |

X
- Definition Amount financed by dealers to purchase goods from the entity. + References No definition available. + Details
Name: | gnrc_AmountFinancedByDealers
Namespace Prefix: | gnrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents lease term of certain computer equipment, automobiles, and warehouse space under operating leases. + References No definition available. + Details
Name: | gnrc_LeaseTerm
Namespace Prefix: | gnrc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | gnrc_Note16CommitmentsandContingenciesDetailsLineItems
Namespace Prefix: | gnrc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |