Consolidated Statements Of Shareholders' Equity (USD $) In Thousands	Common Stock [Member]	Capital In Excess Of Par [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Non-controlling Interest [Member]	Total
Balance, value at Jun. 30, 2009	$ 2,008	$ 125,640	$ 575,095	$ 16,254	$ 6,034	$ 725,031
Balance, shares at Jun. 30, 2009	80,310
Net income	0	0	114,353	0	1,027	115,380
Foreign currency translation adjustments, net of tax benefit of $0	0	0	0	(42,222)	(714)	(42,936)
Unrealized gains (losses) on long-term investments, net of tax	0	0	0	135	0	135
Non-controlling interest put arrangement	0	0	302	0	0	302
Dividends to non-controlling interest	0	0	0	0	(115)	(115)
Share-based compensation	0	12,365	0	0	0	12,365
Stock issued upon exercise of options, value	34	23,276	0	0	0	23,310
Stock issued upon exercise of options, shares	1,378
Repurchases of stock, value	(41)	(47,594)	0	0	0	(47,635)
Repurchases of stock, shares	(1,646)
Income tax benefit from options exercised	0	3,775	0	0	0	3,775
Balance, value at Jun. 30, 2010	2,001	117,462	689,750	(25,833)	6,232	789,612
Balance, shares at Jun. 30, 2010	80,042
Net income	0	0	144,059	0	554	144,613
Foreign currency translation adjustments, net of tax benefit of $0	0	0	0	74,968	856	75,824
Unrealized gains (losses) on long-term investments, net of tax	0	0	0	(812)	0	(812)
Non-controlling interest put arrangement	0	0	30	0	0	30
Acquisition of non-controlling interest	0	0	0	0	(682)	(682)
Dividends to non-controlling interest	0	0	0	0	(420)	(420)
Share-based compensation	0	12,448	0	0	0	12,448
Stock issued upon exercise of options, value	37	28,069	0	0	0	28,106
Stock issued upon exercise of options, shares	1,471
Repurchases of stock, value	(18)	(33,385)	0	0	0	(33,403)
Repurchases of stock, shares	(708)
Income tax benefit from options exercised	0	7,935	0	0	0	7,935
Balance, value at Jun. 30, 2011	2,020	132,529	833,839	48,323	6,540	1,023,251
Balance, shares at Jun. 30, 2011	80,805					80,805
Net income	0	0	166,983	0	118	167,101
Foreign currency translation adjustments, net of tax benefit of $0	0	0	0	(67,373)	(540)	(67,913)
Unrealized gains (losses) on long-term investments, net of tax	0	0	0	1,203	0	1,203
Acquisition of non-controlling interest	0	(2,069)	0	0	(2,632)	(4,701)
Share-based compensation	0	16,501	0	0	0	16,501
Stock issued upon exercise of options, value	20	14,913	0	0	0	14,933
Stock issued upon exercise of options, shares	792					792
Repurchases of stock, value	(32)	(59,167)	0	0	0	(59,199)
Repurchases of stock, shares	(1,288)
Income tax benefit from options exercised	0	4,955	0	0	0	4,955
Balance, value at Jun. 30, 2012	$ 2,008	$ 107,662	$ 1,000,822	$ (17,847)	$ 3,486	$ 1,096,131
Balance, shares at Jun. 30, 2012	80,309					80,309