Variable Interest Entities - Summarized Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets:
Net Investment in Real Estate	$ 4,172,935	$ 3,778,148
Operating Lease Right-of-Use Assets	24,594	24,927
Cash and Cash Equivalents	135,233	58,591
Deferred Rent Receivable	108,096	98,727
Prepaid Expenses and Other Assets, Net	184,201	156,047
Total Assets	4,663,118	4,179,098
Liabilities and Partners' Capital:
Accounts Payable, Accrued Expenses and Other Liabilities	210,007	153,096
Operating Lease Liabilities	22,275	22,592
Rents Received in Advance and Security Deposits	99,694	98,588
Total Liabilities and Equity/Partners' Capital	4,663,118	4,179,098
Other Real Estate Partnerships
Assets:
Net Investment in Real Estate	294,734	277,984
Operating Lease Right-of-Use Assets	13,044	13,087
Cash and Cash Equivalents	3,505	9,126
Deferred Rent Receivable	11,088	10,984
Prepaid Expenses and Other Assets, Net	9,944	9,480
Total Assets	332,315	320,661
Liabilities and Partners' Capital:
Accounts Payable, Accrued Expenses and Other Liabilities	20,105	9,496
Operating Lease Liabilities	10,263	10,277
Rents Received in Advance and Security Deposits	6,848	7,470
Partners' Capital	295,099	293,418
Total Liabilities and Equity/Partners' Capital	$ 332,315	$ 320,661