Common Stock and Stock Plans - Summary of Stock Option Activity and TSR Performance Stock Option Activity (Detail)	12 Months Ended
	Mar. 31, 2025 $ / shares shares
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	221,949
Number of Shares, Options granted	35,000
Number of Shares, Options expired	(68,231)
Number of Shares, Outstanding, Ending Balance	188,718
Number of Shares, Vested and exercisable, Ending Balance	152,718
Weighted Average Exercise Price per Share, Outstanding, Beginning Balance | $ / shares	$ 51.95
Weighted Average Exercise Price per Share, Options granted | $ / shares	17.33
Weighted Average Exercise Price per Share, Options expired | $ / shares	61.67
Weighted Average Exercise Price per Share, Outstanding, Ending Balance | $ / shares	42.02
Weighted Average Exercise Price per Share, Vested and exercisable, Ending Balance | $ / shares	$ 46.72
Weighted Average Remaining Contractual Term in Years, Outstanding	2 years 10 months 24 days
Weighted Average Remaining Contractual Term in Years, Vested and exercisable	2 years 3 months 18 days
Market-based Performance Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	3,356,983
Number of Shares, Options granted	0
Number of Shares, Options expired	(793,978)
Number of Shares, Outstanding, Ending Balance	2,563,005
Weighted Average Exercise Price per Share, Outstanding, Beginning Balance | $ / shares	$ 31.29
Weighted Average Exercise Price per Share, Options expired | $ / shares	33.84
Weighted Average Exercise Price per Share, Outstanding, Ending Balance | $ / shares	$ 30.5
Weighted Average Remaining Contractual Term in Years, Outstanding	3 years 9 months 18 days