CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Common Stock Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning Balance at Jun. 30, 2011	$ 1,389,516	$ 738	$ 248,418	$ 1,367,972	$ 15,729	$ (243,341)
Comprehensive Income:
Net income	141,565			141,565
Currency Translation Income (Loss)	(21,608)				(21,608)
Unrealized investment gains, net of tax	(10)				(10)
Comprehensive Income	120,763
Accretion of Noncontrolling Interest	(671)			(671)
Stock-based compensation	18,530		18,530
Cash dividends of $0.30, $0.34, $0.34, per common share in 2013, 2012 and 2011 respectively	(19,878)			(19,878)
Net proceeds from exercise of stock options	4,954	3	6,130			(1,179)
Tax benefit from exercise of stock options	372		372
Proceeds from stock issued under Employee Stock Purchase Plan	1,716		(488)			2,204
Repurchase of common shares for treasury	(158,093)					(158,093)
Ending Balance at Jun. 30, 2012	1,356,393	741	272,962	1,488,988	(5,889)	(400,409)
Comprehensive Income:
Net income	106,786			106,786
Currency Translation Income (Loss)	(11,369)				(11,369)
Unrealized investment gains, net of tax	157				157
Comprehensive Income	97,628
Accretion of Noncontrolling Interest	1,793			1,793
Stock-based compensation	15,493		15,493
Cash dividends of $0.30, $0.34, $0.34, per common share in 2013, 2012 and 2011 respectively	(21,736)			(21,736)
Net proceeds from exercise of stock options	3,685	4	4,972			(1,291)
Tax benefit from exercise of stock options	(1,864)		(1,864)
Proceeds from stock issued under Employee Stock Purchase Plan	1,704		(294)	(822)		2,820
Repurchase of common shares for treasury	(53,886)					(53,886)
Ending Balance at Jun. 30, 2013	1,397,156	745	291,269	1,575,009	(17,101)	(452,766)
Comprehensive Income:
Net income	134,032			134,032
Currency Translation Income (Loss)	1,369				1,369
Unrealized investment gains, net of tax	338				338
Comprehensive Income	136,418
Accretion of Noncontrolling Interest	(4,860)			(4,860)
Stock-based compensation	17,685		17,685
Cash dividends of $0.30, $0.34, $0.34, per common share in 2013, 2012 and 2011 respectively	(21,903)			(21,903)
Net proceeds from exercise of stock options	6,928	8	10,473			(3,553)
Tax benefit from exercise of stock options	1,276		1,276
Proceeds from stock issued under Employee Stock Purchase Plan	1,372		0	(207)		1,579
Ending Balance at Jun. 30, 2014	$ 1,533,393	$ 753	$ 320,703	$ 1,682,071	$ (15,394)	$ (454,740)