Net Income (Loss) Per Share (Antidilutive Securities Excluded from Diluted Net Income (Loss) Per Share) (Details) - shares	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Dilutive Shares Issuable Under Purchase Contracts [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share		1,446,935		2,369,987
Time-Vesting Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share	1,655,445	681,938	1,787,769	636,267
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share	3,797,124	778,123	4,769,824	875,084
Deferred Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share	137,410	61,858	136,509	55,567