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Treasury Stock and Share Based Awards (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012
Treasury stock |
Beginning Balance, Shares | 3,391,592
Beginning Balance | $ 45,219
Restricted stock withholdings, Shares | 122,043
Restricted stock withholdings, Cost | 2,700
Ending Balance, Shares | 3,513,635
Ending Balance | 47,919
Stock Options |
Number of Options Outstanding Beginning Balance | 82,166
Weighted Average Exercise Price Beginning Balance | $ 7.63
Number of Options Exercised | (200)
Weighted Average Exercise Price Exercised | $ 7.63
Number of Options Outstanding Ending Balance | 81,966
Weighted Average Exercise Price Ending Balance | $ 7.63
Aggregate Intrinsic Value | 1,174
Number of Options Exercisable at March 31, 2012 | 81,966
Weighted Average Exercise Price Exercisable at March 31, 2012 | $ 7.63
Aggregate intrinsic value exercisable number of options exercisable at March 31, 2012 | 1,174
Restricted stock |
Shares of Restricted Stock Outstanding, Beginning | 1,384,390
Weighted Average Grant Date Fair Value Outstanding, Beginning | $ 16.85
Shares of Restricted Stock Granted | 618,230
Weighted Average Grant Date Fair Value Granted | $ 21.63
Shares of Restricted Stock Vested | (347,091)
Weighted Average Grant Date Fair Value Vested | $ 17.75
Shares of Restricted Stock Outstanding, Ending | 1,655,529
Weighted Average Grant Date Fair Value Outstanding, Ending | $ 18.45
Unvested restricted stock, Ending | 1,655,529
Weighted Average Grant Date Fair Value Outstanding Unvested restricted stock, Ending | $ 18.45
at IRR of at least 8.5% [Member] |
Number of shares vest under restricted stock unit awards |
Number of shares vesting at an IRR level of at least 8.5% | 50,981
Fair value of shares vesting at an IRR level of at least 8.5% | 1,106
at IRR of at least 10.5% [Member] |
Number of shares vest under restricted stock unit awards |
Number of shares vesting at an IRR level of at least 10.5% | 101,974
Fair value of shares vesting at an IRR level of at least 10.5% | 2,206
at IRR of at least 12.5% [Member] |
Number of shares vest under restricted stock unit awards |
Number of shares vesting at an IRR level of at least 12.5% | 152,955
Fair value of shares vesting at an IRR level of at least 12.5% | $ 3,308

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