Earnings per Share and Stock Plans - Schedule of Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Numerator for basic and diluted earnings per share:
Net income (loss)	$ (5,138)	$ 46,625	$ 48,429
Denominators:
Weighted-average common stock outstanding— denominator for basic EPS (in shares)	28,738	28,728	28,600
Effect of dilutive employee stock options, RSU's and performance shares (in shares)	0	298	218
Adjusted weighted-average common stock outstanding and assumed conversions – denominator for diluted EPS (in shares)	28,738	29,026	28,818