Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 0.1	$ 0.1
Amortization expense - 2017	0.7
Amortization expense - 2018	1.2
Amortization expense - 2019	1.2
Amortization expense - 2020	1.2
Amortization expense - 2021	1.2
Amortization expense - Thereafter	$ 3.6