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Goodwill and Other Intangible Assets - Intangibles and Amortization Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired | $ 24,056 |  |
Gross carrying amount | 2,046,063 | $ 2,063,100 |
Intangible Assets, Gross (Excluding Goodwill) | 2,142,731 | 2,159,900 |
Finite-Lived Intangible Assets, Accumulated Amortization | 1,008,475 | 877,276 |
Finite-Lived Intangible Assets, Net | 1,037,588 | 1,185,824 |
Intangible Assets, Net (Excluding Goodwill) | 1,134,256 | 1,282,624 |
Amortization expense | 143,868 | 150,171 | $ 130,171
Acquisition-related amortization expense | 142,170 | 148,147 | $ 128,007
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |
2017 | 131,936 |  |
2018 | 123,425 |  |
2019 | 117,381 |  |
2020 | 103,917 |  |
2021 | 93,854 |  |
Customer Intangibles [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 1,395,742 | 1,405,361 |
Finite-Lived Intangible Assets, Accumulated Amortization | 645,305 | 559,447 |
Finite-Lived Intangible Assets, Net | 750,437 | 845,914 |
Trademarks [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 214,774 | 217,621 |
Finite-Lived Intangible Assets, Accumulated Amortization | 72,305 | 58,523 |
Finite-Lived Intangible Assets, Net | 142,469 | 159,098 |
Patents [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 144,302 | 145,577 |
Finite-Lived Intangible Assets, Accumulated Amortization | 128,254 | 123,135 |
Finite-Lived Intangible Assets, Net | 16,048 | 22,442 |
Unpatented Technologies [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 155,380 | 152,913 |
Finite-Lived Intangible Assets, Accumulated Amortization | 85,560 | 71,284 |
Finite-Lived Intangible Assets, Net | 69,820 | 81,629 |
Distributor Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 82,970 | 85,794 |
Finite-Lived Intangible Assets, Accumulated Amortization | 37,943 | 32,092 |
Finite-Lived Intangible Assets, Net | 45,027 | 53,702 |
Drawings and Manuals [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 31,849 | 32,739 |
Finite-Lived Intangible Assets, Accumulated Amortization | 23,273 | 20,767 |
Finite-Lived Intangible Assets, Net | 8,576 | 11,972 |
Other Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 21,046 | 23,095 |
Finite-Lived Intangible Assets, Accumulated Amortization | 15,835 | 12,028 |
Finite-Lived Intangible Assets, Net | 5,211 | 11,067 |
Trademarks [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Accumulated Amortization | $ 0 | $ 0 |

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