Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Marsal Acquisition (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Feb. 10, 2015	Jan. 03, 2015
Business Acquisition [Line Items]
Goodwill	$ 977,247		$ 808,491
Marsal [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		$ 455
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		195
Goodwill		3,018
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		2,027
Current liabilities		(195)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		5,500
Scenario, Previously Reported [Member] | Marsal [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		455
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		201
Goodwill		3,012
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		2,027
Current liabilities		(195)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		5,500
Scenario, Adjustment [Member] | Marsal [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		(6)
Goodwill		6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		0
Current liabilities		0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 0