v3.26.3
Derivative Financial Instruments - Narrative (Details)
9 Months Ended
Sep. 30, 2026
USD ($)
counterparty
Dec. 31, 2025
USD ($)
Derivative [Line Items]    
Number of central counterparties | counterparty 2  
Notional value $ 10,533,000 $ 573,112,000
Derivative, fair value, amount offset against collateral, net 100,000 100,000
Estimated accumulated gain (loss) to be reclassified in next 12 months 1,000,000.0  
Cash collateral held relative to derivative exposure 0 0
Cash collateral pledged 100,000 $ 100,000
CME    
Derivative [Line Items]    
Notional value $ 9,000,000  
Percent of total notional derivative contracts 86.00%  
Amount of variation margin included as settlement $ 0  
LCH    
Derivative [Line Items]    
Notional value $ 2,000,000  
Percent of total notional derivative contracts 14.00%  
Amount of variation margin included as settlement $ 0