Fair Value Accounting (Schedule of Assets Measured at Fair Value on Non-Recurring Basis) (Details) - Fair Value, Measurements, Nonrecurring Basis - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Provision for credit losses | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	$ 6,413	$ 8,900	$ 6,462	$ 9,239
Loss on other loans held for sale | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	2,360		19,110
Other operating expense | Other assets held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment		0		492
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0	0
Other loans held for sale	0		0
Other assets held for sale		0		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0	0
Other loans held for sale	0		0
Other assets held for sale		0		0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	30,123	24,360	30,123	24,360
Other loans held for sale	$ 346,897		$ 346,897
Other assets held for sale		$ 2,725		$ 2,725