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Goodwill and Other Intangible Assets Schedule of Intangible Assets (excluding Goodwill) by Major Class (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, accumulated amortization | $ (179,350) | $ (174,400)
Intangible Assets, Gross (Excluding Goodwill) | 353,030 | 348,930
Trademarks and Trade Names [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Indefinite-lived intangible assets, gross carrying amount | 42,930 | 42,930
Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 209,770 | 205,680
Finite-lived intangible assets, accumulated amortization | (110,940) | (107,200)
Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 100,330 | 100,320
Finite-lived intangible assets, accumulated amortization | (68,410) | (67,200)
Useful Life Five to Twelve Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 77,540 | 73,450
Finite-lived intangible assets, accumulated amortization | (50,420) | (48,410)
Useful Life Fifteen to Twentyfive Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 132,230 | 132,230
Finite-lived intangible assets, accumulated amortization | (60,520) | (58,790)
Useful Life One to Fifteen Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 57,030 | 57,020
Finite-lived intangible assets, accumulated amortization | (32,310) | (31,600)
Useful Life Seventeen to Thirty Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 43,300 | 43,300
Finite-lived intangible assets, accumulated amortization | $ (36,100) | $ (35,600)
Minimum [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 1 year |
Minimum [Member] | Useful Life Five to Twelve Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 5 years |
Minimum [Member] | Useful Life Fifteen to Twentyfive Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 15 years |
Minimum [Member] | Useful Life One to Fifteen Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 1 year |
Minimum [Member] | Useful Life Seventeen to Thirty Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 17 years |
Maximum [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 30 years |
Maximum [Member] | Useful Life Five to Twelve Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 12 years |
Maximum [Member] | Useful Life Fifteen to Twentyfive Years [Member] | Customer Relationships [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 25 years |
Maximum [Member] | Useful Life One to Fifteen Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 15 years |
Maximum [Member] | Useful Life Seventeen to Thirty Years [Member] | Technology and Other [Member] |  |
Intangible Assets, excluding Goodwill [Line Items] |  |
Finite-Lived Intangible Assets, Useful Life | 30 years |

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