Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 0.1	$ 0.7	$ 0.9
Amortization expense - 2017	0.2
Amortization expense - 2018	0.5
Amortization expense - 2019	0.5
Amortization expense - 2020	0.5
Amortization expense - 2021	0.5
Amortization expense - Thereafter	$ 2.8