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Debt - Term Loan Facility (Details) - Term Loan Facility
3 Months Ended
Jun. 09, 2016
USD ($)
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity $ 655,000,000    
Line of credit facility, increase in maximum borrowing capacity $ 175,000,000.0   $ 175,000,000
Net leverage ratio of available amount 4.1    
Interest rate for term loan facility 1.00% 5.25%  
Basis spread 4.25%    
Percentage of aggregate annual amount to be paid every quarter 1.00%    
Amortization of debt discount   $ 200,000  
Debt issuance cost     $ 18,500,000
Federal Funds Effective Rate      
Debt Instrument [Line Items]      
Basis spread 0.50%    
LIBOR      
Debt Instrument [Line Items]      
Basis spread 1.00%    
One-month LIBOR      
Debt Instrument [Line Items]      
Basis spread 3.25%