Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	$ 3,600,892	$ 2,742,025
Equity Securities with Readily Determined Fair Value	7,000	6,000
Servicing Asset at Fair Value, Amount	84,390	77,351	$ 57,158
Fair Value, Inputs, Level 1
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	35,902	109,378
Equity Securities with Readily Determined Fair Value	6,883	5,991
Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	3,564,990	2,632,647
Fair Value, Inputs, Level 3
Assets, Fair Value Disclosure [Abstract]
Servicing Asset at Fair Value, Amount	84,390	77,351
Designated as Hedging Instrument [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Interest Rate Fair Value Hedge Asset at Fair Value	8,075	4,349
Foreign Currency Contract, Asset, Fair Value Disclosure	632	416
Liabilities, Fair Value Disclosure [Abstract]
Interest Rate Fair Value Hedge Liability at Fair Value	930	1,260
Foreign Currency Contracts, Liability, Fair Value Disclosure	2,946	972
US Treasury Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	35,902	109,378
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	35,902	109,378
Agency Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale		13,532
Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	0	13,532
US States and Political Subdivisions Debt Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	91,817	230,714
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	91,817	230,714
Residential Related Securities | FNMA/FHLMC [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	1,120,794	1,604,610
Residential Related Securities | Government National Mortgage Association (GNMA)
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	2,042,675	497,596
Residential Related Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 | FNMA/FHLMC [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	1,120,794	1,604,610
Residential Related Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 | Government National Mortgage Association (GNMA)
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	2,042,675	497,596
Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	0
Commercial Mortgage-Backed Securities [Member] | FNMA/FHLMC [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	16,937	17,142
Commercial Mortgage-Backed Securities [Member] | Government National Mortgage Association (GNMA)
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	154,793	110,462
Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 | FNMA/FHLMC [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	16,937	17,142
Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 | Government National Mortgage Association (GNMA)
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	154,793	110,462
FFELP asset backed securities
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	133,975	151,191
FFELP asset backed securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	133,975	151,191
US Government-sponsored Enterprises Debt Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	1,051	4,477
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	1,051	4,477
Debt Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	2,950	2,922
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	2,950	2,922
Total AFS investment securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	35,902	109,378
Total AFS investment securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale	3,564,990	2,632,647
Other Debt And Other Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1
Assets, Fair Value Disclosure [Abstract]
Equity Securities with Readily Determined Fair Value	6,883	5,991
Residential loans held for sale | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	33,011	20,383
Interest rate-related and other instruments not designated as hedging instruments(a) | Not designated as hedging instruments: | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	111,623	62,401
Liabilities, Fair Value Disclosure [Abstract]
Derivative Liability	195,662	251,398
Foreign currency exchange forwards not designated as hedging instruments(a) | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Liabilities, Fair Value Disclosure [Abstract]
Derivative Liability	2,746	402
Foreign currency exchange forwards not designated as hedging instruments(a) | Not designated as hedging instruments: | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	2,954	437
Commodity contracts(a) | Not designated as hedging instruments: | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	0
Interest rate lock commitments to originate residential mortgage loans held for sale | Fair Value, Inputs, Level 3
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	439	86
Liabilities, Fair Value Disclosure [Abstract]
Derivative Liability	673	46
Interest rate lock commitments to originate residential mortgage loans held for sale | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3
Assets, Fair Value Disclosure [Abstract]
Derivative Assets	439	86
Forward commitments to sell residential mortgage loans | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3
Liabilities, Fair Value Disclosure [Abstract]
Derivative Liability	$ 673	$ 46