Income Taxes Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Operating Loss Carryforwards, Expiration Date	2016 to 2035
Deferred Tax Assets, Valuation Allowance	$ 608	$ 650
Income Taxes Paid	90,307	61,885	$ 83,014
Unrecognized Tax Benefits	7,421	7,104	7,834
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	5,986	5,193
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,178	1,120
Income Tax penalties and interest expense (or benefits) included in income tax provision	47	$ (155)	$ 582
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards	6,048
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	1,470
Minimum [Member]
Expiration of statutes of limitations impact on UTB balance	1,500
Maximum [Member]
Expiration of statutes of limitations impact on UTB balance	$ 3,000