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DEBT AND FINANCING COSTS - Additional Information (Details)
1 Months Ended 3 Months Ended
Nov. 30, 2018
contract
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Feb. 28, 2019
USD ($)
Debt Instrument [Line Items]        
Outstanding borrowings   $ 468,000,000 $ 396,000,000  
Letters of credit outstanding   0 0  
Debt outstanding   $ 468,000,000.0 405,800,000  
Finance lease liability     $ 9,800,000  
Line of Credit        
Debt Instrument [Line Items]        
Debt covenant, maximum leverage ratio   5.00    
Debt covenant, 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    
Revolving Credit Facility | Line of Credit        
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   0.225%    
Revolving Credit Facility | Line of Credit | Base Rate        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   0.15%    
Revolving Credit Facility | Line of Credit | London Interbank Offered Rate (LIBOR)        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   1.15%    
Letter of Credit | Line of Credit        
Debt Instrument [Line Items]        
Debt maximum borrowing capacity       100,000,000.0
Swingline Loan Subfacility | Line of Credit        
Debt Instrument [Line Items]        
Debt maximum borrowing capacity       $ 100,000,000.0
Maximum | Line of Credit        
Debt Instrument [Line Items]        
Debt covenant, maximum leverage ratio   5.50    
Minimum | Line of Credit        
Debt Instrument [Line Items]        
Debt covenant, maximum leverage ratio   4.00