XML 83 R69.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stock-Based Compensation (Information Regarding Stock Options Outstanding) (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2017
$ / shares
shares
$5.91 - $40.89  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit $ 5.91
Range of Exercise Prices, Upper Limit $ 40.89
Options Outstanding, Options | shares 437
Options Outstanding, Weighted-Average Remaining Contractual Life (years) 1 year 8 months 27 days
Options Outstanding, Weighted-Average Exercise Price $ 32.01
Options Exercisable, Options | shares 434
Options Exercisable, Weighted-Average Exercise Price $ 32.15
$48.97 - $55.30  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit 48.97
Range of Exercise Prices, Upper Limit $ 55.30
Options Outstanding, Options | shares 392
Options Outstanding, Weighted-Average Remaining Contractual Life (years) 2 years 9 months 20 days
Options Outstanding, Weighted-Average Exercise Price $ 49.11
Options Exercisable, Options | shares 392
Options Exercisable, Weighted-Average Exercise Price $ 49.11
$58.67  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit 58.67
Range of Exercise Prices, Upper Limit $ 58.67
Options Outstanding, Options | shares 492
Options Outstanding, Weighted-Average Remaining Contractual Life (years) 3 years 9 months 36 days
Options Outstanding, Weighted-Average Exercise Price $ 58.67
Options Exercisable, Options | shares 492
Options Exercisable, Weighted-Average Exercise Price $ 58.67
$61.68 - $95.09  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit 61.68
Range of Exercise Prices, Upper Limit $ 95.09
Options Outstanding, Options | shares 849
Options Outstanding, Weighted-Average Remaining Contractual Life (years) 6 years 18 days
Options Outstanding, Weighted-Average Exercise Price $ 78.06
Options Exercisable, Options | shares 612
Options Exercisable, Weighted-Average Exercise Price $ 72.35