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Goodwill and Definite and Indefinite-lived Intangible Assets - Definite and Indefinite Lived Intangible Assets (Details) - USD ($) $ in Thousands | 6 Months Ended |
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Jun. 30, 2019 | Dec. 31, 2018
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Finite-lived intangible assets | $ 74,170 | $ 58,259
Less accumulated amortization | (16,945) | (14,902)
Total net | 57,225 | 43,357
Total Intangible Assets | 62,725 | 48,857
Trade names and trademarks |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Indefinite-lived intangible assets | $ 5,500 | 5,500
Trade names and trademarks |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Estimated Useful Lives | 25 years |
Finite-lived intangible assets | $ 33,083 | 23,938
Customer and dealer relationships |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Finite-lived intangible assets | $ 34,466 | 32,260
Customer and dealer relationships | Minimum |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Estimated Useful Lives | 10 years |
Customer and dealer relationships | Maximum |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Estimated Useful Lives | 14 years |
Patents and drawings |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Finite-lived intangible assets | $ 6,621 | $ 2,061
Patents and drawings | Minimum |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Estimated Useful Lives | 3 years |
Patents and drawings | Maximum |  |
Schedule of Acquired Indefinite-lived and Finite Intangible Assets by major class [Line Items] |  |
Estimated Useful Lives | 12 years |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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