Mortgage Notes Payable, Unsecured Notes and Credit Facility - Mortgage Notes Payable, Unsecured Notes, Term Loan and Credit Facility (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Total mortgage notes payable and unsecured notes and Term Loans	$ 8,170,431	$ 7,629,814
Variable rate unsecured credit facility	0	0
Total mortgage notes payable, unsecured notes, Term Loans and Credit Facility	8,170,431	7,629,814
Unsecured notes
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Fixed rate notes	7,150,000	6,500,000
Total mortgage notes payable and unsecured notes and Term Loans	7,400,000
Amount of debt discount	10,033	10,380
Deferred financing costs, net	40,573	37,615
Term loan
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Variable rate notes	250,000	250,000
Secured notes
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Fixed rate notes	306,281	408,964
Variable rate notes	464,150	470,850
Total mortgage notes payable and unsecured notes and Term Loans	547,848
Amount of debt discount	13,528	14,478
Deferred financing costs, net	$ 2,750	$ 3,004