Business Segments - Summary of Information for Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Summary information for the reportable segments
Rental and other property revenues	$ 190,344	$ 169,836	$ 151,451
Property operating expenses	71,792	67,613	61,514
Other operating expenses not allocated to segments	198,640	117,863	104,294
Total operating expenses	270,432	185,476	165,808
Proportionate property net operating income (loss)	(80,088)	(15,640)	(14,357)
Other items included in income (loss) before income tax	189,510	(2,910)	(1,563)
Income (loss) before income tax	109,422	(18,550)	(15,920)
Operating Segments [Member]
Summary information for the reportable segments
Rental and other property revenues	135,224	122,303	116,888
Property operating expenses	40,841	39,625	37,917
Total operating expenses	40,841	39,625	37,917
Proportionate property net operating income (loss)	94,383	82,678	78,971
Income (loss) before income tax	94,383	82,678	78,971
Segment Reconciling Items [Member]
Summary information for the reportable segments
Rental and other property revenues	6,097	5,256	5,577
Property operating expenses	6,077	5,199	4,885
Total operating expenses	6,077	5,199	4,885
Proportionate property net operating income (loss)	20	57	692
Income (loss) before income tax	20	57	692
Corporate Non-Segment [Member]
Summary information for the reportable segments
Rental and other property revenues	30,074	25,682	14,392
Property operating expenses	17,116	16,938	13,614
Other operating expenses not allocated to segments	198,640	117,863	104,294
Total operating expenses	215,756	134,801	117,908
Proportionate property net operating income (loss)	(185,682)	(109,119)	(103,516)
Other items included in income (loss) before income tax	189,510	(2,910)	(1,563)
Income (loss) before income tax	3,828	(112,029)	(105,079)
Development and Redevelopment [Member] | Operating Segments [Member]
Summary information for the reportable segments
Rental and other property revenues	919	2,036	1,515
Property operating expenses	2,198	1,446	981
Total operating expenses	2,198	1,446	981
Proportionate property net operating income (loss)	(1,279)	590	534
Income (loss) before income tax	(1,279)	590	534
Other [Member] | Operating Segments [Member]
Summary information for the reportable segments
Rental and other property revenues	18,030	14,559	13,079
Property operating expenses	5,560	4,405	4,117
Total operating expenses	5,560	4,405	4,117
Proportionate property net operating income (loss)	12,470	10,154	8,962
Income (loss) before income tax	$ 12,470	$ 10,154	$ 8,962