Stock-Based Compensation and Stock Options - Stock Options (Detail) - $ / shares	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-Based Payment Arrangement [Abstract]
Options outstanding, beginning balance, Shares	723,876	937,158
Options granted, Shares	44,600	33,000
Options exercised, Shares	(43,739)	(118,756)
Options cancelled/forfeited, Shares	(2,394)	(4,777)
Options outstanding, ending balance, Shares	722,343	846,625
Options outstanding, beginning balance, Weighted Average Exercise Price	$ 84.55	$ 64.28
Options granted, Weighted Average Exercise Price	148.89	119.48
Options exercised, Weighted Average Exercise Price	42.69	49.17
Options cancelled/forfeited, Weighted Average Exercise Price	121.79	72.97
Options outstanding, ending balance, Weighted Average Exercise Price	$ 90.94	$ 68.50