Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (2,559,000)	$ 7,150,000
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Equity in earnings from unconsolidated entities	(45,417,000)	(4,463,000)
Return on investment from Gateway Commercial Venture	78,968,000	0
Deferred income taxes	0	1,266,000
Depreciation and amortization	11,219,000	17,220,000
Gain on settlement of contingent consideration—related party	0	(64,870,000)
Share-based compensation	8,696,000	10,158,000
Changes in operating assets and liabilities:
Inventories	(129,990,000)	(200,703,000)
Related party assets	(6,227,000)	(16,979,000)
Other assets	(218,000)	(1,590,000)
Accounts payable and other liabilities	(29,191,000)	5,586,000
Related party liabilities	(994,000)	(3,968,000)
Net cash used in operating activities	(115,713,000)	(251,193,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Distribution from indirect Legacy Interest in Great Park Venture—related party	1,721,000	0
Return of investment from Gateway Commercial Venture	57,532,000	1,987,000
Purchase of properties and equipment	(2,124,000)	(1,470,000)
Net cash provided by investing activities	57,129,000	517,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from senior notes offering	0	125,000,000
Payment of financing costs	0	(2,528,000)
Senior notes pre-issuance accrued interest proceeds	0	1,941,000
Related party reimbursement obligation	(7,991,000)	0
Principal payment on Macerich note	0	(65,130,000)
Reacquisition of share-based compensation awards for tax-withholding purposes	(5,521,000)	(4,099,000)
Proceeds of Class B common share offering	0	3,000
Tax distribution to noncontrolling interest	(4,568,000)	0
Contribution from noncontrolling interest	0	5,544,000
Proceeds from issuance of redeemable noncontrolling interest	0	25,000,000
Net cash (used in) provided by financing activities	(18,080,000)	85,731,000
NET DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(76,664,000)	(164,945,000)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—Beginning of period	348,574,000	497,097,000
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—End of period	$ 271,910,000	$ 332,152,000