Nature of Operations and Summary of Significant Accounting Policies Treasury Stock (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Class of Stock Disclosures [Abstract]
Treasury Stock, Value	$ 980,019		$ 876,134
Treasury Stock, Shares, Acquired	1,202,000
Payments for Repurchase of Common Stock	$ 103,885	$ 155,122
Treasury Stock, Shares	25,410,212		24,208,517
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	4,580,000		5,782,000