Prepaid Expenses and Other Assets - Additional Information (Details) - Partnership Agreement [Member] $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Partnership agreement	10 years
Upfront cash payment	$ 10.0
Prepaid expenses and other assets	1.0	$ 1.0
Other assets, noncurrent	8.8	8.8
Amortization expense	$ 0.2	$ 0.2