Common Stock and Stock Plans - Summary of Stock Option Activity and TSR Performance Stock Option Activity (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance | shares	236,496
Number of Shares, Options granted | shares	58,000
Number of Shares, Options expired | shares	(69,914)
Number of Shares, Options exercised | shares	(2,633)
Number of Shares, Outstanding, Ending Balance | shares	221,949
Number of Shares, Vested and exercisable, Ending Balance | shares	163,949
Weighted Average Exercise Price per Share, Outstanding, Beginning Balance | $ / shares	$ 62.53
Weighted Average Exercise Price per Share, Options granted | $ / shares	31
Weighted Average Exercise Price per Share, Options expired | $ / shares	71.12
Weighted Average Exercise Price per Share, Options exercised | $ / shares	31.28
Weighted Average Exercise Price per Share, Outstanding, Ending Balance | $ / shares	51.95
Weighted Average Exercise Price per Share, Vested and exercisable, Ending Balance | $ / shares	$ 59.36
Weighted Average Remaining Contractual Term in Years, Outstanding	3 years 2 months 12 days
Weighted Average Remaining Contractual Term in Years, Vested and exercisable	2 years 4 months 24 days
Market-based Performance Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance | shares	2,407,312
Number of Shares, Options granted | shares	1,513,923
Number of Shares, Options expired | shares	(564,252)
Number of Shares, Outstanding, Ending Balance | shares	3,356,983
Weighted Average Exercise Price per Share, Outstanding, Beginning Balance | $ / shares	$ 48.06
Weighted Average Exercise Price per Share, Options granted | $ / shares	19.72
Weighted Average Exercise Price per Share, Options expired | $ / shares	71.83
Weighted Average Exercise Price per Share, Outstanding, Ending Balance | $ / shares	$ 31.29
Weighted Average Remaining Contractual Term in Years, Outstanding	4 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding | $	$ 2,568,780