Affordable Housing Program (AHP) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Affordable Housing Program [Roll Forward]
AHP Obligation, Beginning Balance	$ 139,807
AHP, Expense (Current Year Additions)	16,318	$ 14,185
AHP Voluntary Contribution Expense	5,000
AHP, Subsidy Uses, Net	(1,845)	$ (4,234)
AHP Obligation, Ending Balance	$ 159,280