v2.4.0.8
Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Earnings Per Share [Abstract]        
Net income $ 10,522 $ 6,007 $ 29,781 [1] $ 19,871
Basic weighted average shares (in shares) 36,742,262 [2] 36,803,235 [2] 36,752,657 [2] 36,837,686 [2]
Effect of dilutive stock options and restricted stock (in shares) 275,299 [2] 197,892 [2] 289,118 [2] 246,009 [2]
Diluted weighted average shares (in shares) 37,017,561 [2] 37,001,127 [2] 37,041,775 [2] 37,083,695 [2]
Basic $ 0.29 [2] $ 0.16 [2] $ 0.81 [2] $ 0.54 [2]
Diluted $ 0.28 [2] $ 0.16 [2] $ 0.80 [2] $ 0.54 [2]
Anti-dilutive shares (in shares) 24,900 [2] 746,363 [2] 177,513 [2] 746,363 [2]
[1] Includes cash payment of fractional shares from three-for-two stock split effective July 2, 2013
[2] Reflects three-for-two stock split effective July 2, 2013