XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Note 1 - Description of Business and Basis of Presentation (Details Textual) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2016 USD ($)
Decrease in Deferred Financing Costs [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | $ 12,965
Decrease in Long-term Borrowings [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | 12,965
Decrease in Deferred Income Taxes Within Current Assets [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | 29,355
Increase in Deferred Income Taxes within Noncurrent Assets [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | 28,139
Decrease in Deferred Income Taxes within Noncurrent Liabilities [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | $ 1,216
Number of Countries Where Product is Sold by Subsidiary | 150

X
- Definition Represents the number of countries in where the subsidiary sells its products. + References No definition available. + Details
Name: | gnrc_NumberOfCountriesWhereProductIsSoldBySubsidiary
Namespace Prefix: | gnrc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=gnrc_DecreaseInDeferredFinancingCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=gnrc_December312015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=gnrc_DecreaseInLongtermBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=gnrc_DecreaseInDeferredIncomeTaxesWithinCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=gnrc_IncreaseInDeferredIncomeTaxesWithinNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=gnrc_DecreaseInDeferredIncomeTaxesWithinNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |