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, 2022		42,773
Beginning balance at Apr. 30, 2022	$ 1,064,498	$ 428	$ 522,136	$ 547,977	$ (6,043)
Increase (Decrease) in Stockholders' Equity
Net income	89,470			89,470
Foreign currency translation adjustments	2,642				2,642
Other comprehensive income, net of tax	2,219				2,219
Repurchase and retirement of common stock (in shares)		(516)
Repurchase and retirement of common stock	(23,795)	$ (5)	(23,790)
Equity-based compensation	3,132		3,132
Exercise of stock options (in shares)		1
Exercise of stock options	29		29
Vesting of restricted stock units (in shares)		7
Tax withholding related to net share settlements of equity awards	(300)		(300)
Issuance of common stock pursuant to employee stock purchase plan (in shares)		33
Issuance of common stock pursuant to employee stock purchase plan	1,329		1,329
Ending balance (in shares) at Jul. 31, 2022		42,298
Ending balance at Jul. 31, 2022	1,139,224	$ 423	502,536	637,447	(1,182)
Beginning balance (in shares) at Apr. 30, 2022		42,773
Beginning balance at Apr. 30, 2022	1,064,498	$ 428	522,136	547,977	(6,043)
Increase (Decrease) in Stockholders' Equity
Net income	192,623
Foreign currency translation adjustments	(31,943)
Other comprehensive income, net of tax	$ 3,349
Repurchase and retirement of common stock (in shares)	(1,117)
Repurchase and retirement of common stock	$ (49,571)
Ending balance (in shares) at Oct. 31, 2022		41,851
Ending balance at Oct. 31, 2022	1,183,939	$ 418	477,558	740,600	(34,637)
Beginning balance (in shares) at Jul. 31, 2022		42,298
Beginning balance at Jul. 31, 2022	1,139,224	$ 423	502,536	637,447	(1,182)
Increase (Decrease) in Stockholders' Equity
Net income	103,153			103,153
Foreign currency translation adjustments	(34,585)				(34,585)
Other comprehensive income, net of tax	1,130				1,130
Repurchase and retirement of common stock (in shares)		(601)
Repurchase and retirement of common stock	(25,776)	$ (6)	(25,770)
Equity-based compensation	3,781		3,781
Exercise of stock options (in shares)		53
Exercise of stock options	672		672
Vesting of restricted stock units (in shares)		101
Vesting of restricted stock units	0	$ 1	(1)
Tax withholding related to net share settlements of equity awards	(3,660)		(3,660)
Ending balance (in shares) at Oct. 31, 2022		41,851
Ending balance at Oct. 31, 2022	$ 1,183,939	$ 418	477,558	740,600	(34,637)
Beginning balance (in shares) at Apr. 30, 2023	40,971	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, net of tax	5,389				5,389
Repurchase and retirement of common stock (in shares)		(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, 2023	40,971	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	167,787
Foreign currency translation adjustments	(9,766)
Other comprehensive income, net of tax	$ 9,603
Repurchase and retirement of common stock (in shares)	(1,158)
Repurchase and retirement of common stock	$ (75,356)
Ending balance (in shares) at Oct. 31, 2023	40,055	40,055
Ending balance at Oct. 31, 2023	$ 1,375,885	$ 401	362,021	1,048,755	(35,292)
Beginning balance (in shares) at Jul. 31, 2023		40,606
Beginning balance at Jul. 31, 2023	1,354,806	$ 406	404,944	967,798	(18,342)
Increase (Decrease) in Stockholders' Equity
Net income	80,957			80,957
Foreign currency translation adjustments	(21,164)				(21,164)
Other comprehensive income, net of tax	4,214				4,214
Repurchase and retirement of common stock (in shares)		(689)
Repurchase and retirement of common stock	(44,572)	$ (6)	(44,566)
Equity-based compensation	5,111		5,111
Exercise of stock options (in shares)		19
Exercise of stock options	508		508
Vesting of restricted stock units (in shares)		119
Vesting of restricted stock units	0	$ 1	(1)
Tax withholding related to net share settlements of equity awards	$ (3,975)		(3,975)
Ending balance (in shares) at Oct. 31, 2023	40,055	40,055
Ending balance at Oct. 31, 2023	$ 1,375,885	$ 401	$ 362,021	$ 1,048,755	$ (35,292)