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Goodwill and Intangible Assets Intangible Assets (Excluding Goodwill) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 14 years |  |
Finite-Lived Intangible Assets, Gross | [1],[2] | $ 282,511 |  | $ 282,511 |  | $ 146,309
Finite-Lived Intangible Assets, Accumulated Amortization | [1],[2] | (91,798) |  | (91,798) |  | (88,499)
Intangible Assets, Gross (Excluding Goodwill) |  | 390,676 |  | 390,676 |  | 181,942
Amortization expense |  | 3,240 | $ 2,912 | 9,301 | $ 9,156 |
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year |  | 15,700 |  | 15,700 |  |
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months |  | 24,400 |  | 24,400 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two |  | 24,100 |  | 24,100 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three |  | 22,200 |  | 22,200 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four |  | 16,100 |  | 16,100 |  |
Trademarks and trade names |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | 108,165 |  | $ 108,165 |  | 35,633
Customer Relationships [Member] |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 12 years |  |
Finite-Lived Intangible Assets, Gross |  | 233,208 |  | $ 233,208 |  | 119,320
Finite-Lived Intangible Assets, Accumulated Amortization |  | (83,596) |  | $ (83,596) |  | (81,614)
Customer relationships |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 12 years |  |
Finite-Lived Intangible Assets, Gross |  | 27,686 |  | $ 27,686 |  | 8,186
Finite-Lived Intangible Assets, Accumulated Amortization |  | (3,836) |  | $ (3,836) |  | (3,132)
Use Rights [Member] |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 50 years |  |
Finite-Lived Intangible Assets, Gross |  | 13,222 |  | $ 13,222 |  | 12,650
Finite-Lived Intangible Assets, Accumulated Amortization |  | (1,097) |  | $ (1,097) |  | (860)
Trademarks and trade names |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 14 years |  |
Finite-Lived Intangible Assets, Gross |  | 5,517 |  | $ 5,517 |  | 4,918
Finite-Lived Intangible Assets, Accumulated Amortization |  | (2,767) |  | $ (2,767) |  | (2,198)
Unpatented technology |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  | 6 years |  |
Finite-Lived Intangible Assets, Gross |  | 2,878 |  | $ 2,878 |  | 1,235
Finite-Lived Intangible Assets, Accumulated Amortization |  | $ (502) |  | $ (502) |  | $ (695)
Minimum [Member] |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  |  | 1 year |  |
Maximum [Member] |  |  |  |  |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  |  | 50 years |  |
[1] | Amounts include the impact of foreign currency translation. Fully amortized amounts are written off.
[2] | The Company amortizes certain identifiable intangible assets primarily on a straight-line basis over their estimated useful lives, which range from one to 50 years.

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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