v2.4.0.8
Earnings Per Common Share (Schedule of Basic and Diluted Earnings Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Earnings Per Share [Abstract]                      
Net income (loss) $ 19,973 $ 13,276 $ 14,591 $ 12,176 $ 13,462 $ 11,880 $ 11,899 $ 8,902 $ 60,016 $ 46,143 $ 48,037
Earnings allocated to participating securities - preferred shares                 95 0 0
Earnings allocated to participating securities - nonvested restricted shares                 523 443 450
Weighted average common shares outstanding                 47,993 39,260 39,103
Earnings (loss) basic (dollars per share) $ 0.39 [1] $ 0.26 [1] $ 0.28 [1] $ 0.31 [1] $ 0.34 [1] $ 0.30 [1] $ 0.30 [1] $ 0.22 [1] $ 1.24 [1] $ 1.16 [1] $ 1.22
Earnings allocated to common shareholders, Diluted                 $ 59,407 $ 45,700 $ 47,588
Weighted average number of common shares outstanding                 47,993 39,260 39,103
Dilutive effect of equity awards and warrants                 1,058 3 77
Weighted average diluted common shares outstanding                 49,051 39,263 39,180
Earnings (loss) diluted (dollars per share) $ 0.38 [1] $ 0.25 [1] $ 0.28 [1] $ 0.31 [1] $ 0.34 [1] $ 0.30 [1] $ 0.30 [1] $ 0.22 [1] $ 1.21 [1] $ 1.16 [1] $ 1.21
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive.                 64 9 53
[1] Due to averaging of shares, quarterly earnings per share may not add up to the totals reported for the full year.