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 (loss)	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)
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
Beginning balance at Apr. 30, 2023	1,274,757	$ 410	428,508	880,968	(35,129)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	219,692
Foreign currency translation adjustments	4,638
Other comprehensive income (loss), net of tax	$ 2,559
Repurchase and retirement of common stock (in shares)	(1,528)
Repurchase and retirement of common stock	$ (100,292)
Ending balance (in shares) at Jan. 31, 2024		39,881
Ending balance at Jan. 31, 2024	1,418,944	$ 398	345,818	1,100,660	(27,932)
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 (loss)	80,957			80,957
Foreign currency translation adjustments	(21,164)				(21,164)
Other comprehensive income (loss), 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
Ending balance at Oct. 31, 2023	1,375,885	$ 401	362,021	1,048,755	(35,292)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	51,905			51,905
Foreign currency translation adjustments	14,404				14,404
Other comprehensive income (loss), net of tax	(7,044)				(7,044)
Repurchase and retirement of common stock (in shares)		(370)
Repurchase and retirement of common stock	(24,936)	$ (4)	(24,932)
Equity-based compensation	3,559		3,559
Exercise of stock options (in shares)		163
Exercise of stock options	3,297	$ 1	3,296
Vesting of restricted stock units (in shares)		2
Tax withholding related to net share settlements of equity awards	(48)		(48)
Issuance of common stock pursuant to employee stock purchase plan (in shares)		31
Issuance of common stock pursuant to employee stock purchase plan	1,922		1,922
Ending balance (in shares) at Jan. 31, 2024		39,881
Ending balance at Jan. 31, 2024	$ 1,418,944	$ 398	345,818	1,100,660	(27,932)
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 (loss)	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)
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
Ending balance at Jul. 31, 2024	$ 1,470,303	$ 393	295,431	1,214,295	(39,816)
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 (loss)	89,375
Foreign currency translation adjustments	(28,848)
Other comprehensive income (loss), net of tax	$ (4,646)
Repurchase and retirement of common stock (in shares)	(1,576)
Repurchase and retirement of common stock	$ (138,902)
Ending balance (in shares) at Jan. 31, 2025	38,487	38,487
Ending balance at Jan. 31, 2025	$ 1,393,608	$ 385	211,814	1,246,422	(65,013)
Beginning balance (in shares) at Jul. 31, 2024		39,282
Beginning balance at Jul. 31, 2024	1,470,303	$ 393	295,431	1,214,295	(39,816)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	53,536			53,536
Foreign currency translation adjustments	(3,789)				(3,789)
Other comprehensive income (loss), net of tax	(6)				(6)
Repurchase and retirement of common stock (in shares)		(593)
Repurchase and retirement of common stock	(52,639)	$ (6)	(52,633)
Equity-based compensation	4,925		4,925
Exercise of stock options (in shares)		63
Exercise of stock options	1,905	$ 1	1,904
Vesting of restricted stock units (in shares)		118
Vesting of restricted stock units	0	$ 1	(1)
Tax withholding related to net share settlements of equity awards	(4,928)		(4,928)
Ending balance (in shares) at Oct. 31, 2024		38,870
Ending balance at Oct. 31, 2024	1,469,307	$ 389	244,698	1,267,831	(43,611)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(21,409)			(21,409)
Foreign currency translation adjustments	(22,109)				(22,109)
Other comprehensive income (loss), net of tax	707				707
Repurchase and retirement of common stock (in shares)		(445)
Repurchase and retirement of common stock	(39,654)	$ (4)	(39,650)
Equity-based compensation	3,422		3,422
Exercise of stock options (in shares)		21
Exercise of stock options	658		658
Vesting of restricted stock units (in shares)		2
Tax withholding related to net share settlements of equity awards	(74)		(74)
Issuance of common stock pursuant to employee stock purchase plan (in shares)		39
Issuance of common stock pursuant to employee stock purchase plan	$ 2,760		2,760
Ending balance (in shares) at Jan. 31, 2025	38,487	38,487
Ending balance at Jan. 31, 2025	$ 1,393,608	$ 385	$ 211,814	$ 1,246,422	$ (65,013)