Intangible Assets and Intangible Liabilities - Summary of Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible assets:
Gross amount	$ 371,555	$ 436,851
Accumulated amortization	(252,142)	(283,332)
Intangible assets, Net	119,413	153,519
Intangible liabilities:
Gross amount	151,118	163,977
Accumulated amortization	(105,790)	(107,981)
Intangible Liabilities, Net	45,328	55,996
Leases, Acquired-in-Place, Market Adjustment [Member]
Intangible liabilities:
Amortization of above and below-market leases, net (component of "rental revenue")	3,070	4,775	$ 11,097
Leases, Acquired-in-Place [Member]
Intangible liabilities:
Amortization of acquired in-place leases (component of "depreciation and amortization")	$ 26,507	$ 36,628	$ 46,917