v3.26.1
Derivative Financial Instruments - Narrative (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
counterparty
Dec. 31, 2025
USD ($)
Derivative [Line Items]    
Number of central counterparties | counterparty 2  
Notional value $ 12,444,000 $ 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 100,000  
Cash collateral held relative to derivative exposure 0 0
Cash collateral pledged 100,000 $ 100,000
CME    
Derivative [Line Items]    
Notional value $ 10,000,000  
Percent of total notional derivative contracts 79.20%  
Amount of variation margin included as settlement $ 0  
LCH    
Derivative [Line Items]    
Notional value $ 2,000,000  
Percent of total notional derivative contracts 20.80%  
Amount of variation margin included as settlement $ 0