XML 52 R40.htm IDEA: XBRL DOCUMENT v3.20.2
DEBT AND FINANCING COSTS - Additional Information (Details)
1 Months Ended 6 Months Ended
Nov. 30, 2018
contract
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Feb. 28, 2019
USD ($)
Debt Instrument [Line Items]        
Outstanding borrowings   $ 493,000,000 $ 396,000,000  
Letters of credit outstanding   0 0  
Debt outstanding   $ 493,000,000.0 405,800,000  
Finance lease liability     $ 9,800,000  
Line of Credit        
Debt Instrument [Line Items]        
Debt covenant term, maximum leverage ratio   5.00    
Debt covenant term, distributions limits   $ 30,000,000    
Debt covenant term, adjustment of consolidated net income limit for three consecutive calendar months on annualized basis   $ 350,000,000.0    
Debt actual leverage ratio   4.00    
Line of Credit | Maximum        
Debt Instrument [Line Items]        
Debt covenant term, maximum leverage ratio   5.50    
Line of Credit | Minimum        
Debt Instrument [Line Items]        
Debt covenant term, maximum leverage ratio   4.00    
Line of Credit | Revolving Credit Facility        
Debt Instrument [Line Items]        
Number of extension options | contract 2      
Extended financing agreement term 1 year      
Debt maximum borrowing capacity   $ 1,500,000,000   $ 800,000,000.0
Debt facility fee percentage   0.20%    
Line of Credit | Revolving Credit Facility | Base Rate        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   0.05%    
Line of Credit | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   1.05%    
Line of Credit | Letter of Credit        
Debt Instrument [Line Items]        
Debt maximum borrowing capacity       100,000,000.0
Line of Credit | Swingline Loan Subfacility        
Debt Instrument [Line Items]        
Debt maximum borrowing capacity       $ 100,000,000.0