Investments in Unconsolidated Joint Ventures - Combined Condensed Statements of Operations of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Leasing revenue	$ 195,594	$ 197,135	$ 587,596	$ 573,657
Total revenues	210,704	212,137	630,939	618,034
Expenses:
Leasing expenses	8,704	6,200	24,463	18,003
Interest expense	52,630	40,336	157,680	149,146
Depreciation and amortization	72,739	75,465	218,053	231,491
Total expenses	232,099	215,904	688,862	680,983
Gain (loss) on sale or write down of assets, net	1,405	118,566	6,767	93,356
Net (loss) income	(13,502)	112,959	(68,541)	41,167
Company's equity in net (loss) income	6,322	(1,733)	(16,422)	20,212
Other
Revenues:
Other	7,503	8,215	21,911	25,391
Shopping center and operating expenses
Expenses:
Shopping center and operating expenses	74,694	70,696	217,342	214,506
Joint Venture
Revenues:
Leasing revenue	208,675	204,348	624,857	582,137
Total revenues	210,760	211,020	637,166	638,789
Expenses:
Leasing expenses	1,627	1,295	4,982	4,529
Interest expense	53,102	52,284	156,180	158,024
Depreciation and amortization	88,271	85,888	268,168	265,191
Total expenses	213,399	217,172	633,818	640,096
Gain (loss) on sale or write down of assets, net	25,788	762	(30,870)	581
Net (loss) income	23,149	(5,390)	(27,522)	(726)
Company's equity in net (loss) income	6,322	(1,733)	(16,422)	20,212
Joint Venture | PPR Portfolio
Revenues:
Leasing revenue	44,157	44,304	136,344	122,311
Total revenues	44,308	44,318	136,613	122,455
Expenses:
Leasing expenses	424	332	1,258	1,106
Interest expense	15,546	15,801	46,299	47,438
Depreciation and amortization	24,269	24,154	72,760	73,042
Total expenses	51,188	50,365	152,124	150,925
Gain (loss) on sale or write down of assets, net	0	0	0	0
Net (loss) income	(6,880)	(6,047)	(15,511)	(28,470)
Company's equity in net (loss) income	1,851	(1,390)	(2,354)	(10,269)
Joint Venture | Other Joint Ventures
Revenues:
Leasing revenue	164,518	160,044	488,513	459,826
Total revenues	166,452	166,702	500,553	516,334
Expenses:
Leasing expenses	1,203	963	3,724	3,423
Interest expense	37,556	36,483	109,881	110,586
Depreciation and amortization	64,002	61,734	195,408	192,149
Total expenses	162,211	166,807	481,694	489,171
Gain (loss) on sale or write down of assets, net	25,788	762	(30,870)	581
Net (loss) income	30,029	657	(12,011)	27,744
Company's equity in net (loss) income	4,471	(343)	(14,068)	30,481
Joint Venture | Other
Revenues:
Other	2,085	6,672	12,309	56,652
Joint Venture | Other | PPR Portfolio
Revenues:
Other	151	14	269	144
Joint Venture | Other | Other Joint Ventures
Revenues:
Other	1,934	6,658	12,040	56,508
Joint Venture | Shopping center and operating expenses
Expenses:
Shopping center and operating expenses	70,399	77,705	204,488	212,352
Joint Venture | Shopping center and operating expenses | PPR Portfolio
Expenses:
Shopping center and operating expenses	10,949	10,078	31,807	29,339
Joint Venture | Shopping center and operating expenses | Other Joint Ventures
Expenses:
Shopping center and operating expenses	$ 59,450	$ 67,627	$ 172,681	$ 183,013