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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 29, 2012 | Dec. 31, 2011 | Dec. 25, 2010
Statement of Stockholders' Equity [Abstract] |  |  |
Issuance of common stock under employee stock purchase plan (in shares) | 48 | 53 | 74
Exercise of stock options (in shares) | 1,066 | 1,444 | 1,550
Exercise of restricted stock units (in shares) | 180 | 68 | 90
Repurchase of common stock (in shares) | 3,055 | 3,076 | 826

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