Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Basic And Diluted Earnings Per Share) (Details)

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Earnings Per Share (Basic And Diluted Earnings Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Net income      
Continuing operations $ 24,182 $ 31,553  
Loss from discontinued operations, net of tax 0 (9)  
Net income $ 24,182 $ 31,544 $ 178,449
Weighted average number of shares outstanding:      
Basic 53,160 54,787  
Dilutive effect of stock-based compensation awards 1,005 1,491  
Diluted 54,165 56,278  
Net income (loss) per share - basic:      
Continuing operations (usd per share) $ 0.45 $ 0.58  
Discontinued operations (usd per share) $ 0.00 $ 0.00  
Net income (usd per share) $ 0.45 $ 0.58  
Net income (loss) per share - diluted:      
Continuing operations (usd per share) $ 0.45 $ 0.56  
Discontinued operations (usd per share) $ 0.00 $ 0.00  
Net income (usd per share) $ 0.45 $ 0.56  
Unexercised employee stock options and stock appreciation rights and unvested restricted stock units excluded from the diluted EPS calculation because their effect would have been antidilutive 746 515