Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for U-Line Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Apr. 04, 2015	Jan. 03, 2015	Nov. 05, 2014
Business Acquisition [Line Items]
Goodwill	$ 819,274	$ 808,491
ULine [Member]
Business Acquisition [Line Items]
Cash			12,764
Current deferred tax asset			657
Current assets			12,237
Property, plant and equipment			3,376
Other intangibles			89,226
Goodwill			57,500
Current liabilities			6,032
Long-term deferred tax liability			(13,095)
Other non-current liabilities			2,111
Consideration paid at closing			154,522
as initially reported | ULine [Member]
Business Acquisition [Line Items]
Cash			12,764
Current deferred tax asset			657
Current assets			12,237
Property, plant and equipment			3,376
Other intangibles			89,501
Goodwill			57,500
Current liabilities			6,032
Long-term deferred tax liability			(13,095)
Other non-current liabilities			(2,111)
Consideration paid at closing			154,797
Scenario, Adjustment [Member] | ULine [Member]
Business Acquisition [Line Items]
Cash			0
Current deferred tax asset			0
Current assets			0
Property, plant and equipment			0
Other intangibles			(275)
Goodwill			0
Current liabilities			0
Long-term deferred tax liability			0
Other non-current liabilities			0
Consideration paid at closing			$ (275)