Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Cumulative effect adjustment from adoption of the credit loss standard, net of tax	Common Stock	Additional ‎Paid-in Capital	Treasury Stock	Retained Earnings	Retained Earnings Cumulative effect adjustment from adoption of the credit loss standard, net of tax	Accumulated ‎Other ‎Comprehensive Income (Loss)
Common stock, shares outstanding, beginning balance (shares) at Jun. 30, 2019			185,491,000
Beginning balance at Jun. 30, 2019	$ 2,072,193		$ 575	$ 1,511,473	$ (1,623,256)	$ 2,436,410		$ (253,009)
Treasury stock, common, beginning balance (shares) at Jun. 30, 2019					(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued on exercise of options (note 11), shares			350,000
Common stock issued on exercise of options (note 11)	19,987		$ 1	19,986
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11), shares			617,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11)	$ (46,058)		$ 3	(46,061)
Common stock issued on employee stock purchase plan (note 11), shares	265,000		265,000
Common stock issued on employee stock purchase plan (note 11)	$ 28,197		$ 1	28,196
Stock-based compensation costs	57,100			57,100
Other comprehensive income (loss)	(30,973)							(30,973)
Net income	621,674					621,674
Dividends declared	(225,093)					(225,093)
Common stock, shares outstanding, ending balance (shares) at Jun. 30, 2020			186,723,000
Ending balance at Jun. 30, 2020	$ 2,497,027	$ (1,143)	$ 580	1,570,694	$ (1,623,256)	2,832,991	$ (1,143)	(283,982)
Treasury stock, common, ending balance (shares) at Jun. 30, 2020					(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Common stock issued on exercise of options (note 11), shares			64,000
Common stock issued on exercise of options (note 11)	$ 3,954		$ 0	3,954
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11), shares			469,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11)	$ (50,207)		$ 2	(50,209)
Common stock issued on employee stock purchase plan (note 11), shares	229,000		229,000
Common stock issued on employee stock purchase plan (note 11)	$ 33,834		$ 1	33,833
Stock-based compensation costs	63,927			63,927
Other comprehensive income (loss)	90,495							90,495
Net income	474,505					474,505
Dividends declared	$ (226,713)					(226,713)
Common stock, shares outstanding, ending balance (shares) at Jun. 30, 2021	145,648,358		187,485,000
Ending balance at Jun. 30, 2021	$ 2,885,679		$ 583	1,622,199	$ (1,623,256)	3,079,640		(193,487)
Treasury stock, common, ending balance (shares) at Jun. 30, 2021	(41,836,234)				(41,836,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued on exercise of options (note 11), shares	177,000		177,000
Common stock issued on exercise of options (note 11)	$ 11,205		$ 0	11,205
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11), shares			369,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 11)	$ (52,406)		$ 2	(52,408)
Common stock issued on employee stock purchase plan (note 11), shares	216,000		216,000
Common stock issued on employee stock purchase plan (note 11)	$ 36,180		$ 1	36,179
Stock-based compensation costs	65,257			65,257
Other comprehensive income (loss)	(119,260)							(119,260)
Net income	779,437					779,437
Dividends declared	$ (245,341)					(245,341)
Common stock, shares outstanding, ending balance (shares) at Jun. 30, 2022	146,410,721		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 (shares) at Jun. 30, 2022	(41,836,234)				(41,836,000)