Consolidated Statement Of Stockholders' Equity (Unaudited) - 3 months ended Sep. 30, 2016 - USD ($) $ in Thousands	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, 2016	$ 1,664,514	$ 1,075	$ 1,123,206	$ 801,392	$ (89,048)	$ (172,111)
Balance, shares at Jun. 30, 2016	107,479,000	107,479,000			4,018,000
Increase (Decrease) in Stockholders' Equity
Net income	$ 8,604			8,604
Other comprehensive income (loss)	(32,171)					(32,171)
Issuance of common stock pursuant to stock based compensation plans	0	$ 1	(1)
Issuance of common stock pursuant to stock based compensation plans, shares		81,000
Stock-based compensation income tax effects	399		399
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(1,615)				$ (1,615)
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					45,000
Stock-based compensation expense	2,704		2,704
Balance at Sep. 30, 2016	$ 1,642,435	$ 1,076	$ 1,126,308	$ 809,996	$ (90,663)	$ (204,282)
Balance, shares at Sep. 30, 2016	107,560,000	107,560,000			4,063,000