Annual report pursuant to Section 13 and 15(d)

Earnings Per Share (Schedule Of Earnings Per Share Reconciliation) (Details)

v2.4.0.6
Earnings Per Share (Schedule Of Earnings Per Share Reconciliation) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Earnings Per Share [Abstract]                      
Basic, Net income                 $ 68,371 $ 108,422 $ 47,363
Effect of dilutive securities, Stock options and awards                 0 0 0
Diluted, Net income                 $ 68,371 $ 108,422 $ 47,363
Weighted average common shares outstanding - Basic (shares)                 55,933,354 48,754,840 43,863,190
Effect of dilutive securities, Stock options and awards (shares)                 484,134 452,123 392,902
Weighted average common shares outstanding-Diluted (shares)                 56,417,488 49,206,963 44,256,092
Basic (usd per share) $ 0.28 $ 0.01 $ 0.45 $ 0.48 $ 0.59 $ 0.58 $ 0.57 $ 0.47 $ 1.22 $ 2.22 $ 1.08
Diluted (usd per share) $ 0.28 $ 0.01 $ 0.45 $ 0.48 $ 0.59 $ 0.57 $ 0.57 $ 0.47 $ 1.21 $ 2.20 $ 1.07