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Consolidated Statements Of Shareholders' Equity (USD $) In Thousands | Common Shares [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Treasury Shares [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balances, value at Dec. 31, 2008 | $ 6,523 | $ 741,813 | $ 312,695 | $ (10,185) | $ (272) | $ 1,050,574
Balances, shares at Dec. 31, 2008 | 65,226 |  |  |  |  |
Stock-based compensation expense |  | 5,356 |  |  |  | 5,356
Shares repurchased and retired, shares | (1,672) |  |  |  |  |
Shares repurchased and retired, value | (167) | (17,964) | (9,788) |  |  | (27,919)
Stock options exercised, shares | 366 |  |  |  |  | 366
Stock options exercised, value | 36 | 3,566 |  |  |  | 3,602
Issuance of restricted shares, net of forfeitures, shares | 150 |  |  |  |  |
Issuance of restricted shares, net of forfeitures, value | 15 | (15) |  |  |  |
Warrants exercised, shares | 27 |  |  |  |  |
Warrants exercised, value | 3 | 200 |  |  |  | 203
Comprehensive income |  |  | 53,381 | 5,192 |  | 58,573
Balances, value at Dec. 31, 2009 | 6,410 | 732,956 | 356,288 | (4,993) | (272) | 1,090,389
Balances, shares at Dec. 31, 2009 | 64,097 |  |  |  |  |
Stock-based compensation expense |  | 5,415 |  |  |  | 5,415
Shares repurchased and retired, shares | (3,320) |  |  |  |  |
Shares repurchased and retired, value | (332) | (35,689) | (22,834) |  |  | (58,855)
Stock options exercised, shares | 290 |  |  |  |  | 290
Stock options exercised, value | 29 | 3,223 |  |  |  | 3,252
Issuance of restricted shares, net of forfeitures, shares | 18 |  |  |  |  |
Issuance of restricted shares, net of forfeitures, value | 2 | (2) |  |  |  |
Excess tax benefit (shortfall) of stock-based compensation |  | 1,235 |  |  |  | 1,235
Comprehensive income |  |  | 79,758 | (1,969) |  | 77,789
Balances, value at Dec. 31, 2010 | 6,109 | 707,138 | 413,212 | (6,962) | (272) | 1,119,225
Balances, shares at Dec. 31, 2010 | 61,085 |  |  |  |  | 61,085
Stock-based compensation expense |  | 5,097 |  |  |  | 5,097
Shares repurchased and retired, shares | (3,715) |  |  |  |  |
Shares repurchased and retired, value | (372) | (39,931) | (15,978) |  |  | (56,281)
Stock options exercised, shares | 257 |  |  |  |  | 257
Stock options exercised, value | 26 | 2,545 |  |  |  | 2,571
Issuance of restricted shares, net of forfeitures, shares | 164 |  |  |  |  |
Issuance of restricted shares, net of forfeitures, value | 16 | (16) |  |  |  |
Excess tax benefit (shortfall) of stock-based compensation |  | (335) |  |  |  | (335)
Comprehensive income |  |  | 51,959 | (6,488) |  | 45,471
Balances, value at Dec. 31, 2011 | $ 5,779 | $ 674,498 | $ 449,193 | $ (13,450) | $ (272) | $ 1,115,748
Balances, shares at Dec. 31, 2011 | 57,791 |  |  |  |  | 57,791

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- Definition Tax benefit associated with any equity-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 62 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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