Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Common Stock	Additional ‎Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated ‎Other ‎Comprehensive Income (Loss)
Common stock, shares outstanding, beginning balance (in shares) at Jun. 30, 2021		187,485,000
Beginning balance at Jun. 30, 2021	$ 2,885,679	$ 583	$ 1,622,199	$ (1,623,256)	$ 3,079,640	$ (193,487)
Treasury stock, common, beginning balance (in shares) at Jun. 30, 2021				(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued on exercise of options (note 10) (in shares)		177,000
Common stock issued on exercise of options (note 10)	11,205		11,205
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10) (in shares)		369,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10)	$ (52,406)	$ 2	(52,408)
Common stock issued on employee stock purchase plan (note 10) (in shares)	216,000	216,000
Common stock issued on employee stock purchase plan (note 10)	$ 36,180	$ 1	36,179
Stock-based compensation costs	65,257		65,257
Other comprehensive (loss) income	(119,260)					(119,260)
Net income	779,437				779,437
Dividends declared	(245,341)				(245,341)
Common stock, shares outstanding, ending balance (in shares) at Jun. 30, 2022		188,247,000
Ending balance at Jun. 30, 2022	3,360,751	$ 586	1,682,432	$ (1,623,256)	3,613,736	(312,747)
Treasury stock, common, ending balance (in shares) at Jun. 30, 2022				(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued on exercise of options (note 10) (in shares)		157,000
Common stock issued on exercise of options (note 10)	9,696		9,696
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10) (in shares)		277,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10)	$ (30,631)	$ 1	(30,632)
Common stock issued on employee stock purchase plan (note 10) (in shares)	220,000	220,000
Common stock issued on employee stock purchase plan (note 10)	$ 39,446	$ 1	39,445
Treasury stock purchases (in shares)	0
Stock-based compensation costs	$ 71,142		71,142
Other comprehensive (loss) income	40,219					40,219
Net income	897,556				897,556
Dividends declared	$ (258,276)				(258,276)
Common stock, shares outstanding, ending balance (in shares) at Jun. 30, 2023	147,064,349	188,901,000
Ending balance at Jun. 30, 2023	$ 4,129,903	$ 588	1,772,083	$ (1,623,256)	4,253,016	(272,528)
Treasury stock, common, ending balance (in shares) at Jun. 30, 2023	(41,836,234)			(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued on exercise of options (note 10) (in shares)	166,000	166,000
Common stock issued on exercise of options (note 10)	$ 13,484		13,484
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10) (in shares)		175,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 10)	$ (8,757)	$ 1	(8,758)
Common stock issued on employee stock purchase plan (note 10) (in shares)	323,000	323,000
Common stock issued on employee stock purchase plan (note 10)	$ 39,610	$ 1	39,609
Treasury stock purchases	$ (150,011)	$ (2)	2	$ (150,011)
Treasury stock purchases (in shares)	(828,000)			(828,000)
Stock-based compensation costs	$ 80,184		80,184
Other comprehensive (loss) income	20,999					20,999
Net income	1,020,951				1,020,951
Dividends declared	$ (282,320)				(282,320)
Common stock, shares outstanding, ending balance (in shares) at Jun. 30, 2024	146,901,045	189,565,000
Ending balance at Jun. 30, 2024	$ 4,864,043	$ 588	$ 1,896,604	$ (1,773,267)	$ 4,991,647	$ (251,529)
Treasury stock, common, ending balance (in shares) at Jun. 30, 2024	(42,664,067)			(42,664,000)