Quarterly report pursuant to Section 13 or 15(d)

DEBT FINANCING - Narrative (Details)

v3.20.2
DEBT FINANCING - Narrative (Details) - USD ($)
Oct. 22, 2020
Sep. 30, 2020
Unsecured debt | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   $ 1,275,000,000
Maximum borrowing capacity if expansion option is exercised   1,750,000,000
Unsecured debt | 2030 Notes | Subsequent Event    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 150,000,000.0  
Debt instrument, interest rate (percent) 2.99%  
Unsecured debt | 2032 Notes | Subsequent Event    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 100,000,000.0  
Debt instrument, interest rate (percent) 3.09%  
Revolving line of credit | Revolving line of credit | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   500,000,000.0
Revolving line of credit remaining borrowing capacity   247,800,000
Term loan A | Unsecured debt | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   125,000,000.0
Term loan B | Unsecured debt | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   250,000,000.0
Term loan C | Unsecured debt | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   225,000,000.0
Term loan D | Unsecured debt | Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity   175,000,000.0
Letter of credit | Revolving line of credit | Credit Facility    
Debt Instrument [Line Items]    
Letters of credit outstanding   $ 5,700,000