XML 61 R47.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stock Options Outstanding (Detail)
9 Months Ended
Dec. 31, 2016
$ / shares
shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Outstanding Options, Number of Shares Outstanding | shares 1,371,600
Outstanding Options, Weighted-Average Remaining Contractual Life 6 years 11 months 19 days
Outstanding Options, Weighted-Average Exercise Price $ 64.41
Exercisable Options, Number of Shares Outstanding | shares 871,840
Exercisable Options, Weighted-Average Exercise Price $ 56.57
$23.17 - $ 30.74 [Member]  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Range 23.17
Range of Exercise Prices, Upper Range $ 30.74
Outstanding Options, Number of Shares Outstanding | shares 169,374
Outstanding Options, Weighted-Average Remaining Contractual Life 3 years 29 days
Outstanding Options, Weighted-Average Exercise Price $ 24.95
Exercisable Options, Number of Shares Outstanding | shares 168,374
Exercisable Options, Weighted-Average Exercise Price $ 24.92
$33.43 - $ 37.34 [Member]  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Range 33.43
Range of Exercise Prices, Upper Range $ 37.34
Outstanding Options, Number of Shares Outstanding | shares 210,201
Outstanding Options, Weighted-Average Remaining Contractual Life 5 years 5 months 16 days
Outstanding Options, Weighted-Average Exercise Price $ 33.85
Exercisable Options, Number of Shares Outstanding | shares 204,201
Exercisable Options, Weighted-Average Exercise Price $ 33.79
$53.22 - $ 77.67 [Member]  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Range 53.22
Range of Exercise Prices, Upper Range $ 77.67
Outstanding Options, Number of Shares Outstanding | shares 442,524
Outstanding Options, Weighted-Average Remaining Contractual Life 7 years 9 months 29 days
Outstanding Options, Weighted-Average Exercise Price $ 70.08
Exercisable Options, Number of Shares Outstanding | shares 229,197
Exercisable Options, Weighted-Average Exercise Price $ 67.20
$79.73 - $ 93.56 [Member]  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Range 79.73
Range of Exercise Prices, Upper Range $ 93.56
Outstanding Options, Number of Shares Outstanding | shares 549,501
Outstanding Options, Weighted-Average Remaining Contractual Life 8 years 22 days
Outstanding Options, Weighted-Average Exercise Price $ 83.70
Exercisable Options, Number of Shares Outstanding | shares 270,068
Exercisable Options, Weighted-Average Exercise Price $ 84.51