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)

v3.5.0.2
Earnings Per Share (Reconciliation Of Common Shares Used In Denominator For Computing Basic And Diluted EPS) (Details) - $ / shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Earnings Per Share [Abstract]        
Weighted average shares of common stock outstanding, used in computing basic earnings per share (in shares) 69,761 70,338 69,632 70,253
Effect of dilutive stock options and restricted stock units (in shares) 869 901 954 948
Weighted-average shares of common stock outstanding, used in computing diluted earnings per share (in shares) 70,630 71,239 70,586 71,201
Income Loss From Continuing Operations Per Basic And Diluted Share [Abstract]        
Earnings (loss) per share of common stock, Basic (in dollars per share) $ 1.20 $ 1.29 $ 1.54 $ 1.58
Earnings (loss) per share of common stock, Diluted (in dollars per share) $ 1.18 $ 1.28 $ 1.52 $ 1.56