Debt - Term Loan - Narrative (Details)
3 Months Ended 9 Months Ended
Nov. 03, 2015
USD ($)
extension_option
Jun. 30, 2016
Sep. 30, 2016
USD ($)
Dec. 31, 2015
USD ($)
Debt Instrument [Line Items]        
Number of one-year extension options | extension_option 2      
Unamortized deferred financing costs     $ 38,812,000 $ 41,577,000
Term Loan        
Debt Instrument [Line Items]        
Total debt, gross $ 325,000,000     370,000,000
Accordian feature maximum borrowing capacity 600,000,000.0      
Days available to reborrow loans repaid     30 days  
Period subject to reborrowing occurrence limitations     12 months  
Origination costs $ 2,300,000      
Unamortized deferred financing costs     $ 1,600,000 $ 2,100,000
Term Loan | LIBOR        
Debt Instrument [Line Items]        
Basis spread on variable rate     1.35%  
Minimum | Term Loan | LIBOR        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.35%      
Minimum | Term Loan | Base Rate        
Debt Instrument [Line Items]        
Basis spread on variable rate 0.35%      
Maximum | Term Loan | LIBOR        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.80%      
Maximum | Term Loan | Base Rate        
Debt Instrument [Line Items]        
Basis spread on variable rate 0.80%      
Achievement of Two of Three Credit Ratings, S&P at least BBB-, Fitch at least BBB-, Moody's at least Baa3 | Minimum | Term Loan | LIBOR        
Debt Instrument [Line Items]        
Basis spread on variable rate   0.90%    
Achievement of Two of Three Credit Ratings, S&P at least BBB-, Fitch at least BBB-, Moody's at least Baa3 | Minimum | Term Loan | Base Rate        
Debt Instrument [Line Items]        
Basis spread on variable rate   0.00%    
Achievement of Two of Three Credit Ratings, S&P at least BBB-, Fitch at least BBB-, Moody's at least Baa3 | Maximum | Term Loan | LIBOR        
Debt Instrument [Line Items]        
Basis spread on variable rate   1.75%    
Achievement of Two of Three Credit Ratings, S&P at least BBB-, Fitch at least BBB-, Moody's at least Baa3 | Maximum | Term Loan | Base Rate        
Debt Instrument [Line Items]        
Basis spread on variable rate   0.75%