Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Emico Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended
	May 20, 2016	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 2,696	$ 0
Goodwill		$ 1,098,843		$ 1,092,722
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
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
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
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