Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				12 Months Ended
	Apr. 30, 2023	Jul. 31, 2022	Apr. 30, 2022	Jul. 31, 2021	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)		42,773			42,773
Beginning balance		$ 1,064,498		$ 822,462	$ 1,064,498	$ 822,462	$ 633,981
Net income	$ 75,593	$ 89,470	$ 76,496	$ 61,202	332,991	273,442	105,560
Repurchase and retirement of common stock					(110,776)	(35,488)	(4,160)
Foreign currency translation gain (loss)					(30,088)	(25,805)	61,341
Other comprehensive income (loss), net of tax					1,002	15,003	8,500
Equity-based compensation					13,217	10,968	8,412
Exercise of stock options					4,715	4,434	7,559
Vesting of restricted stock units					0	0	0
Tax withholding related to net share settlements of equity awards					(4,005)	(2,850)	(807)
Issuance of common stock pursuant to employee stock purchase plan					$ 3,203	$ 2,332	2,076
Ending balance (in shares)	40,971		42,773		40,971	42,773
Ending balance	$ 1,274,757		$ 1,064,498		$ 1,274,757	$ 1,064,498	$ 822,462
Common Stock
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)		42,773		43,073	42,773	43,073	42,554
Beginning balance		$ 428		$ 431	$ 428	$ 431	$ 426
Repurchase and retirement of common stock (in shares)					(2,271)	(715)	(134)
Repurchase and retirement of common stock					$ (23)	$ (7)	$ (1)
Exercise of stock options (in shares)					280	222	483
Exercise of stock options					$ 3	$ 2	$ 4
Vesting of restricted stock units (in shares)					110	123	75
Vesting of restricted stock units					$ 1	$ 1	$ 1
Issuance of common stock pursuant to employee stock purchase plan (in shares)					79	70	95
Issuance of common stock pursuant to employee stock purchase plan					$ 1	$ 1	$ 1
Ending balance (in shares)	40,971		42,773		40,971	42,773	43,073
Ending balance	$ 410		$ 428		$ 410	$ 428	$ 431
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Beginning balance		522,136		542,737	522,136	542,737	529,662
Repurchase and retirement of common stock					(110,753)	(35,481)	(4,159)
Equity-based compensation					13,217	10,968	8,412
Exercise of stock options					4,712	4,432	7,555
Vesting of restricted stock units					(1)	(1)	(1)
Tax withholding related to net share settlements of equity awards					(4,005)	(2,850)	(807)
Issuance of common stock pursuant to employee stock purchase plan					3,202	2,331	2,075
Ending balance	428,508		522,136		428,508	522,136	542,737
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Beginning balance		547,977		274,535	547,977	274,535	168,975
Net income					332,991	273,442	105,560
Ending balance	880,968		547,977		880,968	547,977	274,535
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity
Beginning balance		$ (6,043)		$ 4,759	(6,043)	4,759	(65,082)
Foreign currency translation gain (loss)					(30,088)	(25,805)	61,341
Other comprehensive income (loss), net of tax					1,002	15,003	8,500
Ending balance	$ (35,129)		$ (6,043)		$ (35,129)	$ (6,043)	$ 4,759