Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Market Forge Acquisition (Details) - USD ($) $ in Thousands	Jul. 04, 2015	Jan. 03, 2015	Jan. 07, 2014
Business Acquisition [Line Items]
Goodwill	$ 833,382	$ 808,491
Business Combination, Contingent Consideration	$ 7,234	$ 7,053
Market Forge [Member]
Business Acquisition [Line Items]
Current assets			$ 1,951
Property, plant and equipment			120
Goodwill			5,906
Other intangibles			4,191
Current liabilities			(4,928)
Consideration paid at closing			7,240
Business Acquisition, Deferred Payments			3,000
Business Combination, Contingent Consideration			1,500
Net assets acquired and liabilities assumed			11,740
Market Forge [Member] | as initially reported
Business Acquisition [Line Items]
Current assets			2,051
Property, plant and equipment			120
Goodwill			5,252
Other intangibles			4,191
Current liabilities			(4,374)
Consideration paid at closing			7,240
Business Acquisition, Deferred Payments			3,000
Business Combination, Contingent Consideration			1,374
Net assets acquired and liabilities assumed			11,614
Market Forge [Member] | Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Current assets			(100)
Property, plant and equipment			0
Goodwill			654
Other intangibles			0
Current liabilities			(554)
Consideration paid at closing			0
Business Acquisition, Deferred Payments			0
Business Combination, Contingent Consideration			126
Net assets acquired and liabilities assumed			$ 126