Intangible Assets and Below Market Lease Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, gross	$ 402,013	$ 361,027
Deferred leasing costs, accumulated amortization	(143,111)	(151,698)
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	258,902	209,329
Acquisition-related below market lease liabilities, gross	57,703	63,748
Acquisition-related below market lease liabilities, accumulated amortization	(28,978)	(37,838)
Acquisition-related below market lease liabilities, net	28,725	25,910
Amortization of intangible assets and below market lease liabilities
Acquired intangible assets (amortized in rental and other revenue)	13,824
Acquired intangible assets (amortized in depreciation and amortization)	84,298
Assumed below market lease liabilities (amortized in rental and other revenue)	(8,535)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	232,621
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	38,173	34,401	$ 37,386
Lease Incentives [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	10,096
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	1,885	1,847	4,281
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	16,185
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	1,932	1,137	1,290
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	0	510	557
Acquisition-Related Below Market Lease Liabilities [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Acquisition-related below market lease liabilities, net	28,725
Amortization of intangible assets and below market lease liabilities
Amortization of acquisition-related below market lease liabilities	$ (5,720)	$ (6,031)	$ (6,633)