Quarterly report pursuant to Section 13 or 15(d)

Debt - Credit Agreement (Details)

v3.19.3
Debt - Credit Agreement (Details) - Second Amended and Restated Credit Agreement - USD ($)
1 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
May 31, 2018
Jul. 31, 2017
Debt Instrument [Line Items]        
Credit facility amount       $ 500,000,000
Right to increase credit facility, amount       $ 150,000,000
LIBOR | Minimum        
Debt Instrument [Line Items]        
Spread on variable rate basis (as a percent)   1.50%    
LIBOR | Maximum        
Debt Instrument [Line Items]        
Spread on variable rate basis (as a percent)   3.25%    
Revolving Credit Facility        
Debt Instrument [Line Items]        
Deferred financing charges $ 2,103,000 $ 2,103,000    
Pre-existing finance charges $ 299,000      
Credit facility amount     $ 350,000  
Right to increase credit facility, amount     $ 50,000