Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning balance at Jun. 30, 2012	$ 568	$ 899,717	$ (895,826)	$ 1,366,712	$ 236,456	$ 1,607,627
Beginning balance, shares at Jun. 30, 2012	169,753,000		(27,732,000)
Common stock issued on exercise of options (note 12)	$ 14	65,635				65,649
Common stock issued on exercise of options, shares (note 12)	3,433,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 12)	$ 2	(7,180)				(7,178)
Common stock issued on vesting of restricted stock units, net of shares withheld for tax, shares (note 12)	529,000
Common stock issued on employee stock purchase plan (note 12)	$ 1	10,451				10,452
Common stock issued on employee stock purchase plan, shares (note 12)	324,000
Treasury stock purchases	$ (17)		$ (188,019)			(188,036)
Treasury stock purchases, shares			(4,294,000)
Tax benefit from exercise of options		18,215				18,215
Stock-based compensation costs		38,226				38,226
Other comprehensive income					(144,368)	(144,368)
Net income				307,133		307,133
Dividends declared				(97,204)		(97,204)
Ending balance at Jun. 30, 2013	$ 568	1,025,064	$ (1,083,845)	1,576,641	92,088	1,610,516
Ending balance, shares at Jun. 30, 2013	174,039,000		(32,026,000)
Common stock issued on exercise of options (note 12)	$ 7	31,157				31,164
Common stock issued on exercise of options, shares (note 12)	1,681,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 12)	$ 3	(11,302)				(11,299)
Common stock issued on vesting of restricted stock units, net of shares withheld for tax, shares (note 12)	713,000
Common stock issued on employee stock purchase plan (note 12)	$ 1	13,052				13,053
Common stock issued on employee stock purchase plan, shares (note 12)	314,000
Treasury stock purchases	$ (18)		$ (208,065)			(208,083)
Treasury stock purchases, shares			(4,416,000)
Tax benefit from exercise of options		16,211				16,211
Stock-based compensation costs		43,462				43,462
Other comprehensive income					59,469	59,469
Net income				345,273		345,273
Dividends declared				(141,518)		(141,518)
Ending balance at Jun. 30, 2014	$ 561	1,117,644	$ (1,291,910)	1,780,396	151,557	1,758,248
Ending balance, shares at Jun. 30, 2014	176,747,000		(36,442,000)
Common stock issued on exercise of options (note 12)	$ 8	36,565				$ 36,573
Common stock issued on exercise of options, shares (note 12)	1,954,000					1,999,003	[1]
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 12)	$ 3	(11,406)				$ (11,403)
Common stock issued on vesting of restricted stock units, net of shares withheld for tax, shares (note 12)	651,000
Common stock issued on employee stock purchase plan (note 12)	$ 1	13,412				13,413
Common stock issued on employee stock purchase plan, shares (note 12)	309,000
Treasury stock purchases	$ (11)		$ (152,644)			(152,655)
Treasury stock purchases, shares			(2,744,000)
Tax benefit from exercise of options		24,868				24,868
Stock-based compensation costs		47,712				47,712
Other comprehensive income					(325,073)	(325,073)
Net income				352,886		352,886
Dividends declared				(157,262)		(157,262)
Ending balance at Jun. 30, 2015	$ 562	$ 1,228,795	$ (1,444,554)	$ 1,976,020	$ (173,516)	$ 1,587,307
Ending balance, shares at Jun. 30, 2015	179,661,000		(39,186,000)

[1] Includes 45,000 shares netted for tax.