Commitments and Contingencies - Prepayment Fees of Term Debt (Details)	Jun. 30, 2017
Through and including the first anniversary of the funding date of the first Term Debt drawn | Term Loan [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	2.00%
After the first anniversary of the funding date of the first Term Debt drawn and before the maturity date | Term Loan [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	1.00%
On the earliest to occur of the maturity date, the acceleration of Term Debt drawn or prepayment of Term Debt drawn | Term Loan [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	5.50%
Through and including the first anniversary of the closing date | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	3.00%
After the first anniversary of the closing date through and including the second anniversary of the closing date | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	2.00%
After the second anniversary of the closing date through and including the third anniversary of the closing date | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Prepayment fee percentage	1.00%