Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Apr. 30, 2023		40,971
Beginning balance at Apr. 30, 2023	$ 1,274,757	$ 410	$ 428,508	$ 880,968	$ (35,129)
Increase (Decrease) in Stockholders' Equity
Net income	86,830			86,830
Foreign currency translation adjustments	11,398				11,398
Other comprehensive income (loss), net of tax	$ 5,389				5,389
Repurchase and retirement of common stock (in shares)	(469)	(469)
Repurchase and retirement of common stock	$ (30,784)	$ (5)	(30,779)
Equity-based compensation	3,304		3,304
Exercise of stock options (in shares)		46
Exercise of stock options	1,248		1,248
Issuance of common stock pursuant to employee stock purchase plan (in shares)		58
Issuance of common stock pursuant to employee stock purchase plan	2,664	$ 1	2,663
Ending balance (in shares) at Jul. 31, 2023		40,606
Ending balance at Jul. 31, 2023	$ 1,354,806	$ 406	404,944	967,798	(18,342)
Beginning balance (in shares) at Apr. 30, 2024	39,754	39,754
Beginning balance at Apr. 30, 2024	$ 1,460,521	$ 397	334,596	1,157,047	(31,519)
Increase (Decrease) in Stockholders' Equity
Net income	57,248			57,248
Foreign currency translation adjustments	(2,950)				(2,950)
Other comprehensive income (loss), net of tax	$ (5,347)				(5,347)
Repurchase and retirement of common stock (in shares)	(538)	(538)
Repurchase and retirement of common stock	$ (46,609)	$ (5)	(46,604)
Equity-based compensation	3,678		3,678
Exercise of stock options (in shares)		22
Exercise of stock options	555		555
Issuance of common stock pursuant to employee stock purchase plan (in shares)		44
Issuance of common stock pursuant to employee stock purchase plan	$ 3,207	$ 1	3,206
Ending balance (in shares) at Jul. 31, 2024	39,282	39,282
Ending balance at Jul. 31, 2024	$ 1,470,303	$ 393	$ 295,431	$ 1,214,295	$ (39,816)