v3.26.1
Loans and Allowance for Credit Losses - Narrative (Details)
 3 Months Ended 13 Months Ended
Mar. 31, 2026
USD ($)
loan
Mar. 13, 2025
USD ($)
Mar. 31, 2026
USD ($)
loan
Mar. 31, 2025
USD ($)
loan
Mar. 31, 2026
USD ($)
loan
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]              
Allowance for credit loss $ 235,667,000   $ 235,667,000 $ 239,220,000 $ 235,667,000 $ 218,517,000 $ 339,939,000
Number of loan modifications | loan     50 23      
Post-modification recorded balance     $ 232,200,000 $ 166,000,000.0      
Total financing receivables, percentage     5.60% 2.20%      
Amount of cash inflow from capital investment       $ 10,200,000      
Loans modified, nonaccrual $ 232,200,000   $ 232,200,000   $ 232,200,000    
Number of loans that did not make payments in accordance with their modified terms | loan 52   52   52    
Carrying value of loans that did not make payments in accordance with their modified terms     $ 185,800,000        
Carrying amount of loan foreclosure in process $ 25,700,000   25,700,000   $ 25,700,000 $ 17,900,000  
PCD loans acquired during the period     $ 0        
UDF IV              
Financing Receivable, Credit Quality Indicator [Line Items]              
Allowance for credit loss $ 52,917,000            
Measurement Period Adjustments | UDF IV              
Financing Receivable, Credit Quality Indicator [Line Items]              
Allowance for credit loss   $ 36,300,000     $ 36,291,000    
Term Extension And Interest Payment Deferral              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan     5 2      
Post-modification recorded balance     $ 145,400,000 $ 66,400,000      
Total financing receivables, percentage     3.50% 0.90%      
Term Extension And Interest Payment Deferral | Minimum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)     2 months 19 months      
Modified in period, payment deferrals (in months)     2 months 12 months      
Term Extension And Interest Payment Deferral | Maximum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)     60 months 32 months      
Modified in period, payment deferrals (in months)     9 months 24 months      
Term Extension And Interest Payment Deferral | Weighted Average              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)     14 months 25 months      
Modified in period, payment deferrals (in months)     3 months 17 months      
Payment Deferral              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan     44 10      
Post-modification recorded balance     $ 86,700,000 $ 4,700,000      
Total financing receivables, percentage     2.10% 0.10%      
Payment Deferral | Minimum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       6 months      
Modified in period, payment deferrals (in months)     3 months        
Payment Deferral | Maximum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       16 months      
Modified in period, payment deferrals (in months)     23 months        
Payment Deferral | Weighted Average              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       6 months      
Modified in period, payment deferrals (in months)     4 months        
Payment Deferral And Interest Rate Reduction              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan     1        
Post-modification recorded balance     $ 100,000        
Total financing receivables, percentage     0.10%        
Modified in period, payment deferrals (in months)     14 months        
Basis spread on variable rate before modification (as a percent) 2.75%   2.75%   2.75%    
Fixed interest rate after modification (as a percent) 9.00%   9.00%   9.00%    
Term Extension              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan       1      
Post-modification recorded balance       $ 44,200,000      
Total financing receivables, percentage       0.50%      
Term Extension | Minimum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       35 months      
Term Extension And Interest Payment Deferral, Modification 1              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan       4      
Post-modification recorded balance       $ 29,600,000      
Total financing receivables, percentage       0.40%      
Term Extension And Interest Payment Deferral, Modification 1 | Minimum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       12 months      
Modified in period, payment deferrals (in months)       6 months      
Term Extension And Interest Payment Deferral, Modification 1 | Maximum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       60 months      
Modified in period, payment deferrals (in months)       24 months      
Term Extension And Interest Payment Deferral, Modification 1 | Weighted Average              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       14 months      
Modified in period, payment deferrals (in months)       15 months      
Term Extension, Modification 1              
Financing Receivable, Credit Quality Indicator [Line Items]              
Number of loan modifications | loan       6      
Post-modification recorded balance       $ 21,100,000      
Total financing receivables, percentage       0.30%      
Term Extension, Modification 1 | Minimum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       5 months      
Term Extension, Modification 1 | Maximum              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       60 months      
Term Extension, Modification 1 | Weighted Average              
Financing Receivable, Credit Quality Indicator [Line Items]              
Term extension period (in months)       16 months      
Principal Forgiveness | Entity Loan Modification Program              
Financing Receivable, Credit Quality Indicator [Line Items]              
Post-modification recorded balance     $ 2,200,000 $ 6,800,000      
Unfunded Loan Commitment              
Financing Receivable, Credit Quality Indicator [Line Items]              
Allowance for credit loss $ 8,000,000.0   $ 8,000,000.0 $ 2,900,000 $ 8,000,000.0