Nature of Operations and Summary of Significant Accounting Policies Treasury Stock (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Class of Stock Disclosures [Abstract]
Treasury Stock, Value	$ 855,594		$ 700,472
Treasury Stock, Shares, Acquired	2,120,000
Payments for Repurchase of Common Stock	$ 155,122	$ 112,803
Treasury Stock, Shares	23,962,117		21,842,632
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	6,028,000		8,148,000