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, 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
Net income	68,886			68,886
Net Change in Accumulated Other Comprehensive Income	58,208					58,208
Issuance of common stock pursuant to compensation plans	13,326	7	13,163		156
Issuance of common stock pursuant to compensation plans, shares		(654,807)			(6,332)
Stock based compensation income tax effects	12,518		12,518
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(10,009)				(10,009)
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					123,212
Stock based compensation charge	6,636		6,636
Balance at Dec. 31, 2013	$ 1,351,120	$ 497	$ 801,091	$ 558,653	$ (40,078)	$ 30,957
Balance, shares at Dec. 31, 2013	49,681,070	49,681,070			1,452,916