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Commitment and Contingencies (Details) - Jun. 30, 2015 - HCP Ventures IV - USD ($)
$ in Millions
Total
Liquidity Support Arrangement  
Ownership percentage (as a percent) 20.00%
Third party debt collateralized by facilities, debt amount $ 107.0
Indirect Guarantee of Indebtedness [Member]  
Liquidity Support Arrangement  
Third party debt collateralized by facilities, debt amount 107.0
Shortfall Loan for Capital Expenditures [Member]  
Liquidity Support Arrangement  
Capital expenditures to be funded, maximum 24.5
Loss Contingency, Receivable $ 19.0
Annual interest rate (as a percent) 12.00%