Acquisitions and Purchase Accounting - Vikings Distributors 2014 (Details) (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Jan. 01, 2011	Jan. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 808,491	$ 687,955	$ 526,011
Distributors [Member]
Business Acquisition [Line Items]
Goodwill		5,308
Current assets		17,791
Property, plant and equipment		1,318
Current liabilities		804
Forgiveness of liabilities owed to Viking	8,697	8,697
Consideration paid at closing		14,916
Distributors 2014 [Member]
Business Acquisition [Line Items]
Current assets				27,808
Property, plant and equipment				1,709
Business Acquisition, Goodwill, Expected Tax Deductible Amount				16,199
Current liabilities				(1,260)
Net assets acquired and liabilities assumed				44,456
Forgiveness of liabilities owed to Viking				5,971
Consideration paid at closing				38,485
as initially reported [Member] | Distributors [Member]
Business Acquisition [Line Items]
Goodwill		1,709
Current assets		21,390
Property, plant and equipment		1,318
Current liabilities		804
Forgiveness of liabilities owed to Viking		8,697
Consideration paid at closing		14,916
as initially reported [Member] | Distributors 2014 [Member]
Business Acquisition [Line Items]
Current assets				35,909
Property, plant and equipment				2,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount				7,552
Current liabilities				(1,005)
Net assets acquired and liabilities assumed				44,456
Forgiveness of liabilities owed to Viking				5,971
Consideration paid at closing				38,485
Scenario, Adjustment [Member] | Distributors [Member]
Business Acquisition [Line Items]
Goodwill		3,599
Current assets		(3,599)
Property, plant and equipment		0
Current liabilities		0
Forgiveness of liabilities owed to Viking		0
Consideration paid at closing		0
Scenario, Adjustment [Member] | Distributors 2014 [Member]
Business Acquisition [Line Items]
Current assets				(8,101)
Property, plant and equipment				(291)
Business Acquisition, Goodwill, Expected Tax Deductible Amount				8,647
Current liabilities				(255)
Net assets acquired and liabilities assumed				0
Forgiveness of liabilities owed to Viking				0
Consideration paid at closing				$ 0