Additional Interim Footnote Information Additional Interim Footnote Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
Class of Stock [Line Items]
Treasury stock, remaining number of shares authorized to be repurchased	4,290	4,290		4,539
Treasury Stock, Value	$ 353,253	$ 353,253		$ 343,956
Treasury Stock, Shares, Acquired	249
Payments for Repurchase of Common Stock		$ 9,297	$ 0