Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	$ 1,252	$ 1,545	$ 8,049
Other Comprehensive Income (Loss), Reclassification Adjustment for Derivative Interest Included in Net Income, Tax	$ 4,658	$ 4,448	$ 4,988