Income Taxes - Current and Deferred Components of Provision For Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Current:
Federal	$ 101	$ 132	$ 214
State	56	340	103
Total current income tax benefit	157	472	317
Deferred:
Federal	17,090	12,120	(60,069)
State	65	2,223	(12,487)
Total deferred income tax expense (benefit)	17,155	14,343	(72,556)
Income tax (benefit) expense	$ 17,312	$ 14,815	$ (72,239)