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Acquisitions (Schedule of Initial Purchase Price) (Details) (USD $)
In Thousands
Feb. 29, 2008
LLF Acquisition [Member]
Mar. 30, 2007
COTCO Acquisition [Member]
Cash consideration for acquisition $ 16,450 $ 77,334
Fair value of common stock issued by the Company 58,830 126,943
Fair value of vested stock options 4,486  
Direct transaction fees and expenses 1,042 3,065
Total purchase price $ 80,808 $ 207,342