Derivative and Hedging Activities Derivative Impact on Perfomance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Capital markets, net | Interest rate-related instruments — customer and mirror, net
Derivative Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 507	$ (619)	$ (2,648)	$ (2,309)
Capital markets, net | Foreign currency exchange forwards
Derivative Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	49	72	(31)	284
Capital markets, net | Commodity contracts
Derivative Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(86)	208	555	(2,037)
Mortgage banking, net | Interest rate lock commitments (mortgage)
Derivative Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(4,948)	(2,851)	5,361	(191)
Mortgage banking, net | Forward commitments (mortgage)
Derivative Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 1,293	$ 1,313	$ 710	$ 1,482