XML 103 R82.htm IDEA: XBRL DOCUMENT v3.19.1
STOCKHOLDERS' EQUITY: - Performance Based (Details) - Restricted stock units
$ / shares in Units, $ in Millions
12 Months Ended
Mar. 31, 2019
USD ($)
$ / shares
shares
Mar. 31, 2018
USD ($)
numberOfIncrement
$ / shares
shares
Mar. 31, 2017
USD ($)
shares
Future expense      
Share-based compensation expense | $ $ 67.0 $ 29.1 $ 24.7
Performance Stock      
Share-based compensation activity      
Outstanding at the beginning of the period (in shares) 557,801    
Granted (in shares) 534,438 389,065  
Additional earned performance shares (in shares) 176    
Vested (in shares) (61,330)    
Forfeited or cancelled (in shares) (133,017)    
PSUs converted to RSUs in conjunction with AMS disposition (in shares) (503,880)    
Outstanding at the end of the period (in shares) 394,188 557,801  
Share-based compensation, Weighted average fair value per share at grant date      
Outstanding at the beginning of the period (in dollars per share) | $ / shares $ 25.65    
Granted (in dollars per share) | $ / shares 41.08    
Additional earned performance shares (in dollars per share) | $ / shares 23.89    
Vested (in dollars per share) | $ / shares 24.22    
Forfeited or cancelled (in dollars per share) | $ / shares 25.16    
PSUs converted to RSUs in conjunction with AMS disposition (in dollars per share) | $ / shares 28.06    
Outstanding at the end of the period (in dollars per share) | $ / shares $ 43.88 $ 25.65  
Weighted-average remaining contractual term      
Weighted-average remaining contractual term (in years) 3 years 2 months 23 days 1 year 8 months 1 day  
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $ $ 22.0 $ 10.1  
Vesting on first anniversary on closing date      
Share-based compensation activity      
Granted (in shares)   184,931 212,083
Vested (in shares) (61,330) (580,133) 0
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $   $ 5.1 $ 5.3
Modified (in shares)     3,882
Cancelled (in shares)     5,231
Grants after modification (in shares)     208,201
Vesting on first anniversary on closing date | Minimum      
Future expense      
Performance share awards vested (as a percent)   0.00% 0.00%
Vesting on first anniversary on closing date | Maximum      
Future expense      
Performance share awards vested (as a percent)   200.00% 200.00%
Vesting Based on Relevant Performance Period Over Two Periods at March 31 2018      
Share-based compensation activity      
Granted (in shares)   87,184  
Forfeited or cancelled (in shares) (43,768)    
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $   $ 2.1  
Future expense      
Vesting percentage 50.20%    
Performance-based Restricted Stock Units Vesting In Three Equal Tranches      
Share-based compensation activity      
Granted (in shares)   116,950  
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $   $ 2.9  
Future expense      
Number of tranches | numberOfIncrement   3  
Performance-based Restricted Stock Units Vesting In Three Equal Tranches | Minimum      
Future expense      
Vesting percentage   0.00%  
Performance-based Restricted Stock Units Vesting In Three Equal Tranches | Maximum      
Future expense      
Vesting percentage   300.00%  
Vesting Based On Relevant Performance Period For First Performance Plan At March 31 2019      
Share-based compensation activity      
Granted (in shares) 186,539    
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $ $ 5.8    
Vesting Based On Relevant Performance Period For First Performance Plan At March 31 2019 | Minimum      
Future expense      
Performance share awards vested (as a percent) 25.00%    
Vesting Based On Relevant Performance Period For First Performance Plan At March 31 2019 | Maximum      
Future expense      
Performance share awards vested (as a percent) 200.00%    
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31 2019 [Member]      
Share-based compensation activity      
Granted (in shares) 347,899    
Share-based Activity - Other disclosures      
Aggregate fair value of restricted stock units granted | $ $ 16.2    
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31 2019 [Member] | Minimum      
Future expense      
Performance share awards vested (as a percent) 0.00%    
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31 2019 [Member] | Maximum      
Future expense      
Performance share awards vested (as a percent) 200.00%