Condensed Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 30, 2012
Current assets:    
Cash and cash equivalents $ 261,732 $ 262,177
Short-term investments 47,398 51,720
Accounts receivable, net 106,602 106,864
Inventories 179,648 182,192
Deferred income taxes 8,663 8,699
Prepaid expenses and other current assets 39,045 28,531
Total current assets 643,088 640,183
Property, plant and equipment, net 170,823 176,728
Intangible assets, net 141,670 149,153
Goodwill 166,688 166,931
Other assets 32,105 39,171
Total assets 1,154,374 1,172,166
Current liabilities:    
Accounts payable 70,794 85,542
Accrued compensation and benefits 19,993 26,080
Other accrued liabilities 33,658 29,913
Income taxes payable 2,919 2,618
Deferred income 10,996 9,135
Current portion of long-term debt 11,626 5,382
Total current liabilities 149,986 158,670
Deferred income taxes 9,289 9,393
Long-term debt, less current portion 403,352 410,913
Other long-term liabilities 31,429 31,416
Total liabilities 594,056 610,392
Stockholders’ equity:    
Preferred stock, $0.001 par value, 50,000,000 shares authorized, 0 shares issued and outstanding 0 0
Additional paid-in capital 700,134 690,891
Accumulated deficit (142,126) (127,691)
Accumulated other comprehensive income (loss) (Note 4) 2,251 (1,484)
Total liabilities and stockholders' equity 1,154,374 1,172,166
Common Class A [Member]
    
Stockholders’ equity:    
Common stock 59 58
Common Class B [Member]
    
Stockholders’ equity:    
Common stock $ 0 $ 0