Quarterly report pursuant to Section 13 or 15(d)

Debt - Revolving Credit Facility (Details)

v3.10.0.1
Debt - Revolving Credit Facility (Details) - Revolving credit facility - Line of credit
1 Months Ended 6 Months Ended
Nov. 30, 2017
USD ($)
Dec. 31, 2018
USD ($)
quarter
Nov. 30, 2018
USD ($)
Debt Instrument      
Debt instrument, term 5 years    
Maximum borrowing capacity $ 750,000,000.0   $ 1,000,000,000.00
Increase limit to borrowing capacity $ 250,000,000.0    
Borrowing capacity increase     $ 250,000,000.0
Commitment fee percentage (in bps)   0.125%  
Covenant compliance, number of consecutive quarters | quarter   4  
Covenant compliance, minimum interest expense coverage ratio   3.50  
Maximum leverage ratio   3.00  
Minimum leverage ratio under a material acquisition or series of material acquisitions   4.00  
Outstanding borrowings under the unfunded Revolving Credit Facility   $ 0  
Minimum      
Debt Instrument      
Commitment fee percentage (in bps)   0.10%  
Minimum | Alternative base rate      
Debt Instrument      
Basis spread on variable rate (in bps)   0.00%  
Minimum | LIBOR      
Debt Instrument      
Basis spread on variable rate (in bps)   1.00%  
Maximum      
Debt Instrument      
Commitment fee percentage (in bps)   0.25%  
Maximum | Alternative base rate      
Debt Instrument      
Basis spread on variable rate (in bps)   0.75%  
Maximum | LIBOR      
Debt Instrument      
Basis spread on variable rate (in bps)   1.75%