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Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Emico Acquisition (Details) - USD ($) $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
May 20, 2016 | Sep. 30, 2017 | Oct. 01, 2016 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | $ 159,458 | $ 210,921 |
Goodwill |  | 1,158,654 |  | $ 1,092,722
Business Acquisition, Deferred Payments |  | $ 1,000 |  |
Emico [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 1,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | 681 |  |  |
Goodwill | 1,999 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | (996) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | (684) |  |  |
Consideration paid at closing | 1,000 |  |  |
Business Acquisition, Deferred Payments | 1,677 |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 2,677 |  |  |
Scenario, Previously Reported [Member] | Emico [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | 746 |  |  |
Goodwill | 1,816 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | (934) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | (628) |  |  |
Consideration paid at closing | 1,000 |  |  |
Business Acquisition, Deferred Payments | 1,559 |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 2,559 |  |  |
Scenario, Adjustment [Member] | Emico [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | (65) |  |  |
Goodwill | 183 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | (62) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | (56) |  |  |
Consideration paid at closing | 0 |  |  |
Business Acquisition, Deferred Payments | 118 |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | $ 118 |  |  |

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