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Summary of Signficant Accounting Policies Finite-Lived Intangible Assets Acquired as Part of Business Combination (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($)
Stahlgruber [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | $ 285,255,000
Stahlgruber [Member] | Trademarks and Trade Names [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 173,946,000
Stahlgruber [Member] | Customer and supplier relationships [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 77,980,000
Stahlgruber [Member] | Software and technology related assets [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 33,329,000
Stahlgruber [Member] | Covenants not to compete [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 0
All 2018 Acquisitions excluding Stahlgruber [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 30,025,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Trademarks and Trade Names [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 8,870,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Customer and supplier relationships [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 20,779,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Software and technology related assets [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 376,000
All 2018 Acquisitions excluding Stahlgruber [Member] | Covenants not to compete [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 0
All 2018 Acquisitions [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 315,280,000
All 2018 Acquisitions [Member] | Trademarks and Trade Names [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 182,816,000
All 2018 Acquisitions [Member] | Customer and supplier relationships [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 98,759,000
All 2018 Acquisitions [Member] | Software and technology related assets [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 33,705,000
All 2018 Acquisitions [Member] | Covenants not to compete [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | $ 0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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