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Consolidated Statements Of Changes In Equity (USD $) In Thousands, except Share data | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Treasury Stock At Cost [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Non-Controlling Interest [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 27, 2008 | $ 661 | $ 154,533 | $ 704,331 | $ (605,828) | $ (561) | $ 0 | $ 253,136
Beginning Balance, shares at Dec. 27, 2008 | 66,109,547 |  |  | 14,424,887 |  |  |
Net income (loss) |  |  | 70,395 |  |  | (445) | 69,950
Dividends paid |  |  | (8,686) |  |  |  | (8,686)
Purchases of common stock |  |  |  | (55,757) |  |  | (55,757)
Purchases of common stock (shares) |  |  |  | 1,624,547 |  |  |
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect | 2 | 1,899 |  |  |  |  | 1,901
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect (shares) | 145,811 |  |  |  |  |  |
Capital contribution from noncontrolling interest |  |  |  |  |  | 580 | 580
Consideration for acquisition paid in common stock |  | (139) |  | 1,139 |  |  | 1,000
Consideration for acquisition paid in common stock (shares) |  |  |  | (27,323) |  |  |
Stock-based compensation |  | 4,968 |  |  |  |  | 4,968
Foreign currency translation |  |  |  |  | 547 |  | 547
Unrealized gain on available-for-sale investments, net of income taxes |  |  |  |  | 512 |  | 512
Ending Balance at Dec. 26, 2009 | 663 | 161,261 | 766,040 | (660,446) | 498 | 135 | 268,151
Ending Balance, shares at Dec. 26, 2009 | 66,255,358 |  |  | 16,022,111 |  |  |
Net income (loss) |  |  | 87,514 |  |  | (932) | 86,582
Dividends paid |  |  | (9,422) |  |  |  | (9,422)
Purchases of common stock |  |  |  | (102,736) |  |  | (102,736)
Purchases of common stock (shares) |  |  |  | 2,652,791 |  |  |
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect | 2 | 3,238 |  |  |  |  | 3,240
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect (shares) | 279,811 |  |  |  |  |  |
Stock-based compensation |  | 4,769 |  |  |  |  | 4,769
Foreign currency translation |  |  |  |  | 182 |  | 182
Unrealized gain on available-for-sale investments, net of income taxes |  |  |  |  | 201 |  | 201
Ending Balance at Dec. 25, 2010 | 665 | 169,268 | 844,132 | (763,182) | 881 | (797) | 250,967
Ending Balance, shares at Dec. 25, 2010 | 66,535,169 |  |  | 18,674,902 |  |  |
Net income (loss) |  |  | 113,007 |  |  | (62) | 112,945
Dividends paid |  |  | (9,983) |  |  |  | (9,983)
Purchases of common stock |  |  |  | (50,450) |  |  | (50,450)
Purchases of common stock (shares) |  |  |  | 1,206,111 |  |  | 1,206,111
Purchase of noncontrolling interest |  | (8,859) |  |  |  | 859 | (8,000)
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect | 1 | 291 |  | (52) |  |  | 240
Exercises of stock options and issuance and vesting of non-vested stock, including shortfall tax effect (shares) | 67,317 |  |  | 1,276 |  |  |
Stock-based compensation |  | 5,012 |  |  |  |  | 5,012
Foreign currency translation |  |  |  |  | (171) |  | (171)
Unrealized gain on available-for-sale investments, net of income taxes |  |  |  |  | 17 |  | 17
Ending Balance at Dec. 31, 2011 | $ 666 | $ 165,712 | $ 947,156 | $ (813,684) | $ 727 |  | $ 300,577
Ending Balance, shares at Dec. 31, 2011 | 66,602,486 |  |  | 19,882,289 |  |  |

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