Capital Mandatorily Redeemable Capital Stock by Maturity (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Past redemption date	[1]	$ 5,663	$ 4,076
Due in one year or less		0	27,379
Due after one year through two years		0	0
Due after two years through three years		93	0
Due after three years through four years		40	363
Due after four years through five years		0	40
Thereafter	[2]	10	10
Total		$ 5,806	$ 31,868	$ 35,923	$ 32,687
Member withdrawal cancellation fee		2.00%

[1] Amount represents mandatorily redeemable capital stock that has reached the end of the five-year redemption-notice period but the member-related activity (for example, advances) remains outstanding. Accordingly, these shares of stock will not be redeemed until the activity is no longer outstanding.

[2] Amount represents reclassifications to mandatorily redeemable capital stock resulting from an FHFA rule effective February 19, 2016, that makes captive insurance companies ineligible for membership. Captive insurance company members that were admitted as members prior to September 12, 2014, will have their memberships terminated no later than February 19, 2021.