v3.26.1
Discount Notes (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Short-Term Debt [Line Items]    
Book value $ 32,797,504 $ 27,430,651
Weighted average effective interest rate 3.65% 3.74%
Discount Notes    
Short-Term Debt [Line Items]    
Par value $ 32,929,683 $ 27,553,574
Unamortized discounts (130,551) (122,625)
Unamortized concessions (300) (285)
Fair-value hedging basis adjustments, net $ (1,328) $ (13)