Debt (Summary of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument
Deferred financing costs, net and other	$ (58,268)	$ (34,462)
Unsecured debt	797,812	796,762
Revolving credit facilities	575,000	575,000
Long-term debt	2,562,604	1,818,447
Collateral property, net carrying value	5,600,000
Mortgages Payable
Debt Instrument
Mortgages payable, gross	6,099,215	5,608,458
Deferred financing costs, net and other	(45,872)	(27,909)
Total, net	$ 6,053,343	5,580,549
Interest rate, end of period (in percentage)	2.08%
Mortgages Payable \| Fixed Rate
Debt Instrument
Mortgages payable, gross	$ 2,190,000	3,012,643
Interest rate, end of period (in percentage)	2.80%
Mortgages Payable \| Variable Rate
Debt Instrument
Mortgages payable, gross	$ 3,909,215	2,595,815
Interest rate, end of period (in percentage)	1.68%
Senior unsecured notes
Debt Instrument
Deferred financing costs, net and other	$ (10,208)	(3,315)
Unsecured debt, gross	1,200,000	450,000
Unsecured debt	$ 1,189,792	446,685
Interest rate, end of period (in percentage)	3.02%
Unsecured Debt
Debt Instrument
Deferred financing costs, net and other	$ (2,188)	(3,238)
Unsecured debt, gross	800,000	800,000
Unsecured term loan, net	$ 797,812	796,762
Interest rate, end of period (in percentage)	3.70%
Unsecured revolving credit facilities
Debt Instrument
Revolving credit facilities	$ 575,000	$ 575,000
Interest rate, end of period (in percentage)	1.00%

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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