Consolidated Statement Of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Jun. 30, 2010	$ 765,723	$ 437	$ 548,782	$ 240,904	$ (17,529)	$ (6,871)
Balance, shares at Jun. 30, 2010		43,646,677			1,072,705
Net income	54,982			54,982
Other Comprehensive Income (Loss), Net of Tax	14,015					14,015
Issuance of common stock pursuant to compensation plans	17,912	12	17,900
Issuance of common stock pursuant to compensation plans, shares		1,156,235
Stock based compensation income tax effects	2,525		2,525
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(2,221)				2,221
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					71,905
Stock based compensation charge	9,031		9,031
Stock Issued During Period, Value, Acquisitions	4,736	2	4,734
Stock Issued During Period, Shares, Acquisitions		242,185
Balance at Jun. 30, 2011	866,703	451	582,972	295,886	(19,750)	7,144
Balance, shares at Jun. 30, 2011		45,045,097			1,144,610
Net income	79,225			79,225
Other Comprehensive Income (Loss), Net of Tax	(12,527)					(12,527)
Issuance of common stock pursuant to compensation plans	16,135	11	16,124
Issuance of common stock pursuant to compensation plans, shares		1,110,815
Stock based compensation income tax effects	8,811		8,811
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(2,035)				2,035
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					58,194
Stock based compensation charge	8,290		8,290
Balance at Jun. 30, 2012	964,602	462	616,197	375,111	(21,785)	(5,383)
Balance, shares at Jun. 30, 2012	46,155,912	46,155,912			1,202,804
Net income	114,656			114,656
Other Comprehensive Income (Loss), Net of Tax	(21,868)					(21,868)
Issuance of common stock pursuant to compensation plans	19,943	11	19,932
Issuance of common stock pursuant to compensation plans, shares		1,171,879
Stock based compensation income tax effects	17,016		17,016
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(8,440)				8,440
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					133,232
Stock based compensation charge	13,010		13,010
Stock Issued During Period, Value, Acquisitions	102,636	17	102,619
Stock Issued During Period, Shares, Acquisitions		1,698,472
Balance at Jun. 30, 2013	$ 1,201,555	$ 490	$ 768,774	$ 489,767	$ (30,225)	$ (27,251)
Balance, shares at Jun. 30, 2013	49,026,263	49,026,263			1,336,036