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Share Based Awards - Summary of Stock Options By Grant Date (Details) - $ / shares	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price Granted (in USD per share)		$ 16.40	$ 14.56
2015 Plan \| Employee Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted	0	326,130	1,479,000
2015 Plan \| Employee Stock Options \| May 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted		241,130
Exercise Price Granted (in USD per share)		$ 16.83
Vesting period		4 years
Expiration		Jun. 01, 2026
2015 Plan \| Employee Stock Options \| August 3, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted		60,000
Exercise Price Granted (in USD per share)		$ 21.27
Vesting period		4 years
Expiration		Aug. 03, 2026
2015 Plan \| Employee Stock Options \| November 2, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted		25,000
Exercise Price Granted (in USD per share)		$ 15.09
Vesting period		4 years
Expiration		Nov. 02, 2026
2015 Plan \| Employee Stock Options \| June 13, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			249,000
Exercise Price Granted (in USD per share)			$ 16.37
Vesting period			4 years
Expiration			Jun. 13, 2025
2015 Plan \| Employee Stock Options \| May 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			60,000
Exercise Price Granted (in USD per share)			$ 14.57
Vesting period			4 years
Expiration			May 24, 2025
2015 Plan \| Employee Stock Options \| August 4, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			25,000
Exercise Price Granted (in USD per share)			$ 16.13
Vesting period			4 years
Expiration			Aug. 04, 2025
2015 Plan \| Employee Stock Options \| October 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			915,000
Exercise Price Granted (in USD per share)			$ 14.07
Vesting period			4 years
Expiration			Oct. 31, 2025
2015 Plan \| Employee Stock Options \| December 4, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			230,000
Exercise Price Granted (in USD per share)			$ 14.38
Vesting period			4 years
Expiration			Dec. 04, 2025