Investment In Unconsolidated Entities - Summarized Balance Sheet Data (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
ASSETS
INVENTORIES	$ 2,021,155	$ 1,889,761
CASH AND CASH EQUIVALENTS	270,580	346,833	$ 330,412
INTANGIBLE ASSET, NET—RELATED PARTY	73,269	80,350
OTHER ASSETS	21,357	22,903
TOTAL	2,962,924	3,004,700
LIABILITIES:
Accounts payable and other liabilities	138,066	167,711
Distribution payable to Legacy Interests	617,198	616,046
Redeemable Legacy Interests	575,412	571,532
Capital (Percentage Interest)	614,211	611,694
TOTAL	2,962,924	3,004,700
INVESTMENT IN UNCONSOLIDATED ENTITIES	441,737	533,239
Members’ capital	1,878,887	1,883,800
Great Park
ASSETS
INVENTORIES	906,920		870,861
CASH AND CASH EQUIVALENTS	146,087		293,002
OTHER ASSETS	25,567		32,395
TOTAL	1,078,574		1,196,258
LIABILITIES:
Accounts payable and other liabilities	147,916		159,965
Distribution payable to Legacy Interests	0		76,272
Redeemable Legacy Interests	133,695		133,695
Capital (Percentage Interest)	796,963		826,326
TOTAL	1,078,574		1,196,258
The Company's share of capital in Great Park Venture	298,861		309,872
Unamortized basis difference	93,908		121,963
INVESTMENT IN UNCONSOLIDATED ENTITIES	392,769	431,835	431,835
Gateway Commercial Venture
ASSETS
INTANGIBLE ASSET, NET—RELATED PARTY	91,231		451,988
OTHER ASSETS	14,157		21,410
TOTAL	105,388		473,398
LIABILITIES:
Distribution payable to Legacy Interests	29,366		302,344
TOTAL	105,388		473,398
INVESTMENT IN UNCONSOLIDATED ENTITIES	48,968	$ 101,404	101,404
Other	10,731		35,848
Members’ capital	$ 65,291		$ 135,206