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Business Combination Business Combination, Intangible Assets (Details) | 6 Months Ended
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Jun. 30, 2018 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items] |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 17,520,000
Noncompete Agreements [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 1,910,000
Finite-Lived Intangible Asset, Useful Life | 5 years
Trademarks [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 1,610,000
Finite-Lived Intangible Asset, Useful Life | 25 years
Developed Technology Rights [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 4,420,000
Finite-Lived Intangible Asset, Useful Life | 7 years
Customer Relationships [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 9,580,000
Finite-Lived Intangible Asset, Useful Life | 12 years

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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