Quarterly report pursuant to Section 13 or 15(d)

Debt - Credit Facility (Details)

v3.8.0.1
Debt - Credit Facility (Details)
1 Months Ended 6 Months Ended
Nov. 30, 2017
USD ($)
Nov. 30, 2014
USD ($)
Dec. 31, 2017
quarter
Term loans      
Debt Instrument      
Face amount   $ 750,000,000  
Debt instrument, term   5 years  
Line of credit | Revolving credit facility      
Debt Instrument      
Debt instrument, term 5 years    
Maximum borrowing capacity $ 750,000,000 $ 500,000,000  
Increase limit to borrowing capacity 250,000,000    
Outstanding draw under the revolving credit facility $ 250,000,000    
Commitment fee percentage (in bps)     0.15%
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
Line of credit | Revolving credit facility | LIBOR      
Debt Instrument      
Basis spread on variable rate (in bps)     1.25%
Line of credit | Revolving credit facility | Minimum      
Debt Instrument      
Commitment fee percentage (in bps)     0.10%
Line of credit | Revolving credit facility | Minimum | Alternative base rate      
Debt Instrument      
Basis spread on variable rate (in bps)     0.00%
Line of credit | Revolving credit facility | Minimum | LIBOR      
Debt Instrument      
Basis spread on variable rate (in bps)     1.00%
Line of credit | Revolving credit facility | Maximum      
Debt Instrument      
Commitment fee percentage (in bps)     0.25%
Line of credit | Revolving credit facility | Maximum | Alternative base rate      
Debt Instrument      
Basis spread on variable rate (in bps)     0.75%
Line of credit | Revolving credit facility | Maximum | LIBOR      
Debt Instrument      
Basis spread on variable rate (in bps)     1.75%