Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Textual (Details)

v3.19.3
Stock-Based Compensation - Textual (Details)
$ in Millions
1 Months Ended
Jun. 30, 2019
installment
Mar. 31, 2010
Sep. 30, 2019
USD ($)
shares
Mar. 31, 2019
Mar. 31, 2018
Incentive Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase price of common stock 100.00%        
Non-Statutory Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase price of common stock 85.00%        
Stock options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percent of voting interests 10.00%        
Purchase price of common stock above minimum threshold 110.00%        
Expiration period 10 years        
Award vesting period   4 years      
Compensation not yet recognized, stock options     $ 4.4    
Stock options [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights 25.00%        
Stock options [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights 75.00%        
Restricted Stock Units (RSUs) [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period   3 years      
Award vesting rights   33.33333%      
Restricted Stock Units (RSUs) [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period   4 years      
Award vesting rights 25.00%        
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of installments | installment 2        
Performance awards, threshold level, number of shares, multiplier 0        
Performance Shares [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights, percentage 50.00%        
Performance Shares [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights, percentage 50.00%        
RSAs and RSUs [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options     1.8    
Performance Stock Units (PSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options     0.8    
Performance Based Options (PBOs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options     $ 1.8    
2019 Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares available for grant (in shares) | shares     7,897,144    
Maximum number of shares to be issued upon exercise of stock options (in shares) | shares     14,000,000    
Number of shares authorized (in shares) | shares     8,100,000    
2019 PSU and PBO Plan [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Estimated performance goal achievement rate     113.00%    
2018 PSU and PBO Plan [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Estimated performance goal achievement rate       118.00%  
2018 PSU and PBO Plan [Member] | Performance Shares [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%      
2018 PSU and PBO Plan [Member] | Performance Shares [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%      
2017 PSU and PBO Plan [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Estimated performance goal achievement rate         134.20%
2017 PSU and PBO Plan [Member] | Performance Shares [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%      
2017 PSU and PBO Plan [Member] | Performance Shares [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%      
2016 PSU Plan [Member] | Performance Shares [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%      
2016 PSU Plan [Member] | Performance Shares [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights   50.00%