Discount Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Short-Term Debt [Line Items]
Book value	$ 22,442,697	$ 22,621,837
Weighted average effective interest rate	5.33%	5.35%
Short-term Debt
Short-Term Debt [Line Items]
Par value	$ 22,543,338	$ 22,737,397
Unamortized discounts	(100,437)	(115,297)
Unamortized concessions	$ (204)	$ (263)

Face (par) amount of debt instrument at time of issuance.

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