Condensed Consolidated Statements Of Shareholders' Equity (USD $) In Thousands	Common Stock [Member]	Capital In Excess Of Par [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Non-Controlling Interest [Member]	Total
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			102,523		529	103,052
Foreign currency translation adjustments, net of tax of $0				62,557	752	63,309
Unrealized losses on long-term investments, net of taxes				454		454
Acquisition of noncontrolling interest			30			30
Purchase of minority interest					(682)	(682)
Dividends to noncontrolling interest					(420)	(420)
Share-based compensation		9,521				9,521
Stock issued upon exercise of options, value	32	23,748				23,780
Stock issued upon exercise of options, shares	1,293
Repurchases of stock, value	(6)	(11,865)				(11,871)
Repurchases of stock, shares	(264)
Income tax benefit from options exercised		6,692				6,692
Balance, value at Mar. 31, 2011	2,027	145,558	792,303	37,178	6,411	983,477
Balance, shares at Mar. 31, 2011	81,071
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			118,764		258	119,022
Foreign currency translation adjustments, net of tax of $0				(40,367)	(452)	(40,819)
Unrealized losses on long-term investments, net of taxes				(504)		(504)
Acquisition of noncontrolling interest						0
Purchase of minority interest		(1,797)			(2,632)	(4,429)
Share-based compensation		12,549				12,549
Stock issued upon exercise of options, value	16	12,080				12,096
Stock issued upon exercise of options, shares	666
Repurchases of stock, value	(29)	(53,623)				(53,652)
Repurchases of stock, shares	(1,178)
Income tax benefit from options exercised		5,096				5,096
Balance, value at Mar. 31, 2012	$ 2,007	$ 106,834	$ 952,603	$ 7,452	$ 3,714	$ 1,072,610
Balance, shares at Mar. 31, 2012	80,293					80,293