XML 94 R50.htm IDEA: XBRL DOCUMENT v3.25.3
Investments - Summary of Investments (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
investment
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
investment
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Schedule of Investments          
Cost method investment ownership percentage 10.00%   10.00%    
Number of equity method investments | investment 10   10    
Fair Value, Investments, Privately Held Entities that Calculate NAV, Unfunded Commitments $ 347,200   $ 347,200    
Limited partnership maximum expiration terms     11 years    
Weighted-average remaining liquidation term (in years)     5 years 4 months 24 days    
Limited partnership liquidation, expected initial term (in years)     10 years    
Equity Securities, FV-NI, Realized Gain 34,800   $ 94,700    
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount 25,100   75,500    
Equity in earnings (losses) of unconsolidated real estate joint ventures 201 $ 139 (9,327) $ 424  
Summary of Investment [Abstract]          
Investment at fair value, cost 1,182,936   1,182,936   $ 1,207,146
Cumulative unrealized gains on investments 180,375   180,375   228,100
Cumulative unrealized losses on investments (152,118)   (152,118)   (144,489)
Investments accounted for under the equity method 326,445   326,445   186,228
Total investments held at adjusted carrying value or fair value 1,537,638   1,537,638   1,476,985
Investment Income, Net [Abstract]          
Realized gains 9,646 12,632 19,115 47,336  
Unrealized gains (losses) 18,515 2,610 (71,568) (32,470)  
Investment income (loss) 28,161 $ 15,242 (52,453) 14,866  
Equity Method Investments          
Schedule of Investments          
Equity in earnings (losses) of unconsolidated real estate joint ventures     (1,800)    
Investments in publicly traded companies          
Summary of Investment [Abstract]          
Investment at fair value, cost 197,229   197,229   188,653
Cumulative unrealized gains on investments 28,964   28,964   24,262
Cumulative unrealized losses on investments (101,901)   (101,901)   (107,248)
Investments at fair value, book value 124,292   $ 124,292   105,667
Investments in privately held entities that report NAV          
Schedule of Investments          
Weighted-average remaining liquidation term (in years)     7 years 10 months 24 days    
Summary of Investment [Abstract]          
Investment at fair value, cost 482,734   $ 482,734   518,074
Cumulative unrealized gains on investments 98,002   98,002   126,077
Cumulative unrealized losses on investments (40,603)   (40,603)   (34,285)
Investments at fair value, book value 540,133   540,133   609,866
Investments in privately held entities that do not report NAV | Entities with observable price change          
Schedule of Investments          
Investment in privately held entities that do not report NAV, cumulative price adjustments (112,400)   (112,400)    
Investments in privately held entities that do not report NAV, cumulative upward price adjustment 53,400   53,400    
Investments in privately held entities that do not report NAV, cumulative downward price adjustment (9,600)   (9,600)    
Investments in privately held entities that do not report NAV, cumulative impairment loss (156,200)   (156,200)    
Equity Securities without Readily Determinable Fair Value, Net Upward (Downward) Price Adjustment, Annual Amount     (79,100) (27,300)  
Investments in privately held entities that do not report NAV, annual upward price adjustment     14,900 17,600  
Investments in privately held entities that do not report NAV, annual downward price adjustment     94,000 44,900  
Summary of Investment [Abstract]          
Investment at fair value, cost 80,454   80,454   99,932
Cumulative unrealized gains on investments 53,409   53,409   77,761
Cumulative unrealized losses on investments (9,614)   (9,614)   (2,956)
Investments in privately held entities that do not report fair value, book value 124,249   124,249   174,737
Investments in privately held entities that do not report NAV | Entities without observable price changes          
Summary of Investment [Abstract]          
Investment at fair value, cost 422,519   422,519   400,487
Cumulative unrealized gains on investments 0   0   0
Cumulative unrealized losses on investments 0   0   0
Investments in privately held entities that do not report fair value, book value $ 422,519   422,519   $ 400,487
Total investments held          
Investment Income, Net [Abstract]          
Unrealized gains (losses)     $ 16,600 $ 15,700