XML 53 R37.htm IDEA: XBRL DOCUMENT v3.20.2
Indebtedness (Summary of Book Value and Changes in Fair Value of Debt) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Book value $ 3,146,428 $ 2,914,765
Fair value 3,488,967 3,081,932
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 765,855  
Payments/Payoffs (519,544)  
Adjustments to fair value 160,723  
Long-term Debt, Gross 3,180,432 2,934,187
Debt Issuance Costs, Net 34,004 19,422
Fixed Rate Secured Debt [Member]    
Book value 73,092 32,287
Fair value 77,195 34,547
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 43,855  
Payments/Payoffs (2,984)  
Adjustments to fair value 1,776  
Variable Rate Secured Debt [Member]    
Book value 1,600 1,900
Fair value 1,600 1,900
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 0  
Payments/Payoffs (300)  
Adjustments to fair value 0  
Unsecured Debt [Member]    
Book value 3,058,740 2,900,000
Fair value 3,363,172 3,045,485
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 675,000  
Payments/Payoffs (516,260)  
Adjustments to fair value 158,947  
Unsecured Line of Credit DRLP [Member]    
Book value 47,000 0
Fair value 47,000 $ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 47,000  
Payments/Payoffs 0  
Adjustments to fair value $ 0