Stock Repurchase Activity (Details) - shares	3 Months Ended	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Mar. 31, 2021
Equity [Abstract]
Stock repurchase program, number of shares authorized remaining to be repurchased (in shares)	30,000,000	30,000,000
Repurchased shares under authorization (in shares)	0	0
Treasury stock (in shares)	19,567,720	19,567,720	21,900,970