v3.26.1
Commercial Real Estate Loan Investments - Schedule of Property Type And Geographic Distribution (Details) - Commercial real estate loan investments
$ in Thousands, € in Millions, £ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 31, 2026
GBP (£)
Mar. 31, 2026
EUR (€)
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 5,200,218 $ 4,702,728    
Commercial Real Estate Loan Investments Benchmark | Property Type Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 100.00% 100.00%    
Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 100.00% 100.00%    
United States        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 4,392,836 $ 4,100,380    
United States | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 84.50% 87.20%    
East        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 1,447,748 $ 1,409,703    
East | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 27.90% 30.00%    
South        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 1,217,646 $ 1,107,282    
South | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 23.40% 23.50%    
West        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 1,129,770 $ 986,262    
West | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 21.70% 21.00%    
Various U.S        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 474,875 $ 474,366    
Various U.S | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 9.10% 10.10%    
Midwest        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 122,797 $ 122,767    
Midwest | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 2.40% 2.60%    
Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 807,382 $ 602,348    
Non-US | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 15.50% 12.80%    
United Kingdom        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 535,029 $ 324,365 £ 404.8  
United Kingdom | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 10.30% 6.90%    
Europe        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 272,353 $ 277,983    
Europe | Commercial Real Estate Loan Investments Benchmark | Geographic Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 5.20% 5.90%    
France, Spain and Italy        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value | €       € 236.7
Multifamily        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 2,750,140 $ 2,292,433    
Multifamily | Commercial Real Estate Loan Investments Benchmark | Property Type Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 52.90% 48.70%    
Industrial        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 1,889,528 $ 1,870,741    
Industrial | Commercial Real Estate Loan Investments Benchmark | Property Type Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 36.30% 39.80%    
Student housing        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 345,945 $ 343,204    
Student housing | Commercial Real Estate Loan Investments Benchmark | Property Type Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 6.70% 7.30%    
Self-storage        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value $ 214,605 $ 196,350    
Self-storage | Commercial Real Estate Loan Investments Benchmark | Property Type Concentration Risk        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Concentration risk (in percent) 4.10% 4.20%