Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Reconciliation Of Common Shares Used In Denominator For Computing Basic And Diluted EPS) (Details)

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Earnings Per Share (Reconciliation Of Common Shares Used In Denominator For Computing Basic And Diluted EPS) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Earnings Per Share [Abstract]    
Weighted average shares of common stock outstanding, used in computing basic earnings per share (in shares) 34,709 34,167
Effect of dilutive stock options and restricted stock units 486 282
Weighted-average shares of common stock outstanding, used in computing diluted earnings per share (in shares) 35,195 34,449
Earnings per share of common stock:    
Earnings per share of common stock, Basic (in dollars per share) $ 0.64 $ 0.30
Earnings per share of common stock, Diluted (in dollars per share) $ 0.63 $ 0.29