Acquisitions Narrative (Details) $ in Thousands					6 Months Ended		12 Months Ended
	Jun. 11, 2014 USD ($) site	Dec. 18, 2013 USD ($)	Nov. 27, 2013 USD ($)	Nov. 15, 2013 USD ($)	Jun. 28, 2014 USD ($) Country	Jun. 29, 2013 USD ($)	Dec. 29, 2012 USD ($)	Dec. 28, 2013 USD ($)	Sep. 17, 2013 site Country £ / shares	Jan. 28, 2011 USD ($)
Business Acquisition [Line Items]
Carrying amount of long-term debt					$ 1,498,892			$ 896,668
Deferred Portion of Purchase Price					48,184			0
Accretion Rate on Deferred Purchase Price	9.50%
Proceeds from bridge loan					$ 17,421	$ 1,879
Proceeds from Blackstone		$ 30,700
Number of countries in which entity operates | Country					14
Aggregrate purchase price of company										$ 403,500
Goodwill acquired through merger							$ 86,400
Acquired intangible assets										72,000
Finite-Lived Intangible Assets
Business Acquisition [Line Items]
Acquired intangible assets										$ 48,500
Senior Notes
Business Acquisition [Line Items]
Carrying amount of long-term debt	$ 210,000
Interest on loan	6.875%
Senior Secured Credit Agreement | Line of Credit
Business Acquisition [Line Items]
Proceeds from credit agreement					$ 295,000
7.75% Senior secured notes | Senior Notes
Business Acquisition [Line Items]
Carrying amount of long-term debt					560,000			$ 560,000
Interest on loan										7.75%
Trade names
Business Acquisition [Line Items]
Acquired intangible assets										$ 23,500
Bridge Loan | Senior Secured Bridge Credit Agreement
Business Acquisition [Line Items]
Proceeds from bridge loan			$ 268,000
Bridge Loan | Senior Unsecured Bridge Credit Agreement
Business Acquisition [Line Items]
Proceeds from bridge loan			$ 50,000
Companhia Providencia Industria e Comercio [Member]
Business Acquisition [Line Items]
Interest acquired	71.25%
Number of locations | site	3
Purchase price	$ 424,832
Deferred Portion of Purchase Price	47,931				$ 48,200
Increase in carrying value of inventory	4,500
Tangible asset impairment charges	16,900
Finite-lived intangibles	$ 19,000
Useful Life	15 years
Fiberweb [Member]
Business Acquisition [Line Items]
Interest acquired									100.00%
Number of locations | site									8
Purchase price				$ 287,800
Increase in carrying value of inventory				9,700
Tangible asset impairment charges				24,500
Share price (in pounds per share) | £ / shares									£ 1.02
Number of countries in which entity operates | Country									6
Indefinite-lived intangibles				11,400
Acquired intangible assets				85,996
Fiberweb [Member] | Trade names
Business Acquisition [Line Items]
Acquired intangible assets				$ 11,412
North America [Member] | Companhia Providencia Industria e Comercio [Member]
Business Acquisition [Line Items]
Number of locations | site	1