Stock Repurchase Activity (Details) - shares	3 Months Ended	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Mar. 31, 2020
Equity [Abstract]
Stock repurchase program, number of shares authorized remaining to be repurchased (in shares)	15,000,000.0	15,000,000.0
Repurchased shares under authorization (in shares)	0	0
Treasury stock (in shares)	12,000,306	12,000,306	13,065,588