v2.4.0.8
Schedule of Finite and Indefinite-lived Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Dec. 29, 2012
Goodwill [Line Items]          
Amortization of Intangible Assets Excluding Acquisition Costs $ 1,677 $ 1,486 $ 4,910 $ 4,415  
Amortization of Intangible Assets 2,284 2,172 6,731 6,471  
Amortization of loan acquisition costs 607 686 1,821 2,056  
Total gross finite-lived intangible assets 76,433   76,433   68,687
Accumulated amortization (23,233)   (23,233)   (16,524)
Total net finite-lived intangible assets 53,200   53,200   52,163
Total 76,700   76,700   75,663
Trade names
          
Goodwill [Line Items]          
Tradenames (indefinite-lived) 23,500   23,500   23,500
Technology
          
Goodwill [Line Items]          
Total gross finite-lived intangible assets 31,900   31,900   31,900
Customer relationships
          
Goodwill [Line Items]          
Total gross finite-lived intangible assets 17,051   17,051   16,869
Loan acquisition costs
          
Goodwill [Line Items]          
Total gross finite-lived intangible assets 19,472   19,472   19,472
Other intangibles, principally patents
          
Goodwill [Line Items]          
Total gross finite-lived intangible assets 8,010   8,010   446
Interest Expense [Member]
          
Goodwill [Line Items]          
Amortization of loan acquisition costs $ 607 $ 686 $ 1,821 $ 2,056