Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	$ 575	$ 603
Cash paid for taxes	4,741	1,017
Supplemental disclosure of non-cash financing activities:
Property and equipment financed by capital lease obligations, including student peripherals	$ 13,969	$ 6,884