Acquired Leases Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 524,893	$ 473,679
Accumulated amortization	(312,186)	(284,880)
Acquired lease intangible assets, net of amortization	212,707	188,799
Finite-Lived Intangible Liabilities, Accumulated Accretion	(172,293)	(145,966)
Off-market Lease, Unfavorable	363,276	377,712
Finite-Lived Intangible Assets, Amortization Expense	39,108	55,955	$ 69,362
Partnership Interest [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	(312,186)	(284,880)
Acquired lease intangible assets, net of amortization	212,707	188,799
Off-market Lease, Unfavorable	363,276	377,712
In-place leases, net [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	443,460	414,298
Finite-Lived Intangible Assets, Amortization Expense	33,621	48,297	60,250
Above Market Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	81,433	59,381
Finite-Lived Intangible Assets, Amortization Expense	5,487	7,658	9,112
Off-Market Lease, Unfavorable [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Liabilities, Gross	535,569	523,678
Acquired lease intangible liability accretion	$ 30,378	$ 50,103	$ 54,730