Share-based Compensation - Restricted Shares Rollforward (Details)	12 Months Ended
	Mar. 31, 2025 $ / shares shares
Restricted Stock [Member]
Activity Related to Restricted Shares Awarded by the Company
Number of Shares, Outstanding at beginning of period | shares	436,177
Number of Shares, Granted | shares	37,349
Number of Shares, Vested | shares	(224,370)
Number of Shares, Forfeited | shares	(19,446)
Vested and Expected to Vest at End of Period | shares	229,710
Weighted Average Grant-Date Fair Value, Outstanding at beginning of period | $ / shares	$ 65.52
Weighted Average Grant Date Fair Value, Granted | $ / shares	106.81
Weighted Average Grant Date Fair Value, Vested | $ / shares	60.97
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	73.32
Weighted Average Grant-Date Fair Value, Vested and Expected to Vest at End of Period | $ / shares	$ 76.01
Restricted Stock Units (RSUs) [Member]
Activity Related to Restricted Shares Awarded by the Company
Number of Shares, Outstanding at beginning of period | shares	56,547
Number of Shares, Granted | shares	139,433
Number of Shares, Vested | shares	(11,550)
Number of Shares, Forfeited | shares	(3,235)
Vested and Expected to Vest at End of Period | shares	181,195
Weighted Average Grant-Date Fair Value, Outstanding at beginning of period | $ / shares	$ 70.03
Weighted Average Grant Date Fair Value, Granted | $ / shares	135.99
Weighted Average Grant Date Fair Value, Vested | $ / shares	80.67
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	137.48
Weighted Average Grant-Date Fair Value, Vested and Expected to Vest at End of Period | $ / shares	$ 118.9