Derivatives and Hedging Activity - Effect on Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivatives
Amount of (Loss) Gain Recognized in Income	$ (32,828)	$ 127,268
Interest rate contracts
Derivatives
Amount of (Loss) Gain Recognized in Income	(22,950)	102,933
Interest rate swap guarantees
Derivatives
Amount of (Loss) Gain Recognized in Income	0	159
Foreign exchange contracts
Derivatives
Amount of (Loss) Gain Recognized in Income	(10,344)	24,142
Credit instruments
Derivatives
Amount of (Loss) Gain Recognized in Income	$ 466	$ 34