Share Based Awards - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Outstanding, Beginning	3,166,525	3,670,170	2,885,415
Number of Shares, Granted		326,130	1,479,000
Number of Shares, Exercised	(55,325)	(375,645)	(216,405)
Number of Shares, Forfeited/Canceled	(75,450)	(451,730)	(477,840)
Number of Shares, Expired	(34,400)	(2,400)
Number of Shares, Outstanding, Ending	3,001,350	3,166,525	3,670,170	2,885,415
Vested and expected to vest, March 31, 2020	2,825,186
Exercisable, March 31, 2020	1,909,678
Weighted- Average Exercise Price per Share
Weighted-Average Exercise Price per Share, Outstanding, Beginning	$ 15.36	$ 15.51	$ 15.41
Weighted-Average Exercise Price per Share, Granted		16.40	14.56
Weighted-Average Exercise Price per Share, Exercised	15.87	15.49	16.62
Weighted-Average Exercise Price per Share, Forfeited/Cancelled	23.38	18.00	18.90
Weighted-Average Exercise Price per Share, Expired	43.04	28.15
Weighted-Average Exercise Price per Share, Outstanding, Ending	14.83	$ 15.36	$ 15.51	$ 15.41
Vested and expected to vest, March 31, 2020 (in dollars per share)	14.83
Exercisable, March 31, 2020 (in dollars per share)	$ 14.83
Weighted- Average Remaining Contractual Life (years)
Outstanding	4 years 8 months 12 days	5 years 6 months	6 years 2 months 12 days	6 years 2 months 12 days
Granted		6 years 9 months 18 days	7 years 6 months
Exercised	4 years 3 months 18 days	4 years 8 months 12 days	5 years 9 months 18 days
Forfeited/Canceled	1 year 6 months	4 years 10 months 24 days	3 years 1 month 6 days
Vested and expected to vest, March 31, 2020	4 years 7 months 6 days
Exercisable, March 31, 2020	4 years 3 months 18 days
Aggregate Intrinsic Value
Outstanding		$ 7,040	$ 766	$ 3,150
Exercised	$ 138	$ 1,589	$ 119