Segment Reporting - Revenues and Profit (loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Segment Reporting Information [Line Items]        
Revenues $ 21,349 $ 5,393 $ 27,050 $ 10,279
Profit (Loss) 50,555 (10,972) 40,821 (47,741)
Equity in earnings (losses) from unconsolidated entities 52,128 643 53,176 (389)
Great Park Venture        
Segment Reporting Information [Line Items]        
Equity in earnings (losses) from unconsolidated entities 52,322 207 53,484 (1,094)
Gateway Commercial Venture        
Segment Reporting Information [Line Items]        
Equity in earnings (losses) from unconsolidated entities (455) 100 (667) 184
Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 383,966 32,834 400,421 58,638
Profit (Loss) 173,220 (1,646) 174,081 (8,998)
Corporate and Unallocated        
Segment Reporting Information [Line Items]        
Profit (Loss) (6,981) (8,024) (16,066) (38,943)
Valencia        
Segment Reporting Information [Line Items]        
Revenues 413 2,568 1,716 3,727
Valencia | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 413 2,568 1,716 3,727
Profit (Loss) (4,538) (2,944) (6,977) (7,771)
San Francisco        
Segment Reporting Information [Line Items]        
Revenues 162 122 324 302
San Francisco | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 162 122 324 302
Profit (Loss) (885) (814) (1,915) (1,483)
Great Park Venture        
Segment Reporting Information [Line Items]        
Revenues 20,670 2,602 24,799 6,046
Great Park Venture | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 381,266 27,922 393,995 50,346
Profit (Loss) 179,145 1,878 183,651 (193)
Great Park Venture | Removal of Results of Unconsolidated Entities        
Segment Reporting Information [Line Items]        
Revenues (360,596) (25,320) (369,196) (44,300)
Profit (Loss) (168,157) (1,476) (170,900) 1,355
Commercial        
Segment Reporting Information [Line Items]        
Revenues 104 101 211 204
Commercial | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 2,125 2,222 4,386 4,263
Profit (Loss) (502) 234 (678) 449
Gateway Commercial Venture | Removal of Results of Unconsolidated Entities        
Segment Reporting Information [Line Items]        
Revenues (2,021) (2,121) (4,175) (4,059)
Profit (Loss) $ 606 $ (133) $ 889 $ (245)