Consolidated Statement Of Stockholders' Equity (USD $) In Thousands, except Share data	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, 2010	$ 605	$ 660,185	$ (344,505)	$ 884,876	$ 86,375	$ 1,287,536
Beginning balance, shares at Jun. 30, 2010	160,567,000		(9,222,000)
Common stock issued on exercise of options (note 12)	19	87,029				87,048
Common stock issued on exercise of options, shares (note 12)	4,723,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 12)	1	(2,269)				(2,268)
Common stock issued on vesting of restricted stock units, net of shares withheld for tax, shares (note 12)	189,000
Common stock issued on employee stock purchase plan (note 12)	1	8,236				8,237
Common stock issued on employee stock purchase plan, shares (note 12)	305,000
Treasury stock purchases	(19)		(160,120)			(160,139)
Treasury stock purchases, shares			(4,893,000)
Tax benefit from exercise of options		14,547				14,547
Stock-based compensation costs		30,733				30,733
Other comprehensive income					238,057	238,057
Net income				226,986		226,986
Ending balance at Jun. 30, 2011	607	798,461	(504,625)	1,111,862	324,432	1,730,737
Ending balance, shares at Jun. 30, 2011	165,784,000		(14,115,000)
Common stock issued on exercise of options (note 12)	13	56,337				56,350
Common stock issued on exercise of options, shares (note 12)	3,271,000
Common stock issued on vesting of restricted stock units, net of shares withheld for tax (note 12)	1	(3,279)				(3,278)
Common stock issued on vesting of restricted stock units, net of shares withheld for tax, shares (note 12)	329,000
Common stock issued on employee stock purchase plan (note 12)	1	8,783				8,784
Common stock issued on employee stock purchase plan, shares (note 12)	369,000
Treasury stock purchases	(54)		(391,201)			(391,255)
Treasury stock purchases, shares			(13,617,000)
Tax benefit from exercise of options		8,620				8,620
Stock-based compensation costs		30,795				30,795
Other comprehensive income					(87,976)	(87,976)
Net income				254,850		254,850
Ending balance at Jun. 30, 2012	568	899,717	(895,826)	1,366,712	236,456	1,607,627
Ending 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					3,432,800
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)