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Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
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Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and Due from Banks | $ 521,323 | $ 544,059 |
Interest-bearing Deposits in Banks and Other Financial Institutions | 711,033 | 453,590 |
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure | 105 | 21,955 |
Debt Securities, Available-for-Sale | 4,796,570 | 4,581,434 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 3,705,857 | 3,738,747 |
Debt Securities, Held-to-Maturity, Fair Value | 3,174,170 | 3,185,494 |
Equity Securities, FV-NI and without Readily Determinable Fair Value | 23,331 | 23,242 |
FHLB and Federal Reserve Bank stocks | 194,244 | 179,665 |
Loans and Leases Receivable, Net Amount | 29,922,780 | 29,405,041 |
Life Insurance, Corporate or Bank Owned, Amount | 690,551 | 689,000 |
Assets | 43,309,136 | 43,023,068 |
Liabilities, Fair Value Disclosure |  |  |
Noninterest-bearing Domestic Deposit, Demand | 6,135,946 | 5,775,657 |
Deposits | 35,196,713 | 34,648,434 |
Federal Funds Purchased and Securities Sold under Agreements to Repurchase | 311,335 | 470,369 |
Short-Term Debt | 311,335 | 470,369 |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances | 2,027,297 | 1,853,807 |
Other Long-Term Debt | 591,382 | 837,635 |
Liabilities | 38,622,578 | 38,417,506 |
Standby Letters of Credit [Member] |  |  |
Liabilities, Fair Value Disclosure |  |  |
Lending Related Commitments | 260,000 | 254,000 |
Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 28,112 | 31,950 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 2,298 | 1,452 |
Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and Due from Banks | 521,323 | 544,059 |
Interest-bearing Deposits in Banks and Other Financial Institutions | 711,033 | 453,590 |
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure | 105 | 21,955 |
Equity Securities, FV-NI | 10,831 | 10,742 |
Equity Securities, FV-NI and without Readily Determinable Fair Value | 23,331 | 23,242 |
FHLB and Federal Reserve Bank stocks | 194,244 | 179,665 |
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure | 47,611 | 646,687 |
Loan, Held-for-Sale, Fair Value Disclosure | 7,910 | 32,634 |
Loans and Leases Receivable, Net Amount | 29,895,996 | 29,373,557 |
Loans Receivable, Fair Value Disclosure | 29,057,135 | 28,327,115 |
Life Insurance, Corporate or Bank Owned, Amount | 690,551 | 689,000 |
Servicing Asset | 86,251 | 87,683 |
Assets | 40,775,509 | 40,471,048 |
Assets, Fair Value Disclosure | 39,404,961 | 38,871,352 |
Liabilities, Fair Value Disclosure |  |  |
Noninterest-bearing Domestic Deposit, Demand | 6,135,946 | 5,775,657 |
Deposits, Savings Deposits | 5,247,291 | 5,133,295 |
Interest-Bearing Domestic Deposit, Demand | 9,075,133 | 9,124,741 |
Deposits, Money Market Deposits | 6,820,038 | 6,637,915 |
Brokered CDs, Carrying Amount | 4,197,512 | 4,276,309 |
Brokered CDs, Fair Value | 4,197,512 | 4,276,309 |
Time Deposits, at Carrying Value | 3,720,793 | 3,700,518 |
Time Deposits | 3,720,793 | 3,700,518 |
Deposits | 35,196,713 | 34,648,434 |
Federal Funds Purchased and Securities Sold under Agreements to Repurchase | 311,335 | 470,369 |
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 311,336 | 470,370 |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances | 2,027,297 | 1,853,807 |
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 2,026,570 | 1,852,685 |
Other Long-Term Debt | 591,382 | 837,635 |
Long-term Debt, Fair Value | 591,715 | 823,991 |
Long-Term Line of Credit | 2,628 | 2,546 |
Liabilities | 38,268,772 | 37,991,364 |
Liabilities, Fair Value Disclosure | 38,268,377 | 37,976,599 |
Fair Value, Measurements, Recurring | Interest Rate Lock Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 988 | 327 |
Fair Value, Measurements, Recurring | Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset |  | 254 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 583 |  |
Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 8,813 | 2,960 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 418 | 2,976 |
Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 1,460 | 2,457 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 115 | 563 |
Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 81,446 | 88,541 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 136,453 | 170,928 |
Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 2,085 | 4,315 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 1,846 | 4,106 |
US Treasury Securities |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 994 | 1,000 |
Debt Securities, Held-to-Maturity, Fair Value | 1,009 | 999 |
US Treasury Securities | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 994 | 1,000 |
Debt Securities, Held-to-Maturity, Fair Value | 1,009 | 999 |
US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 2,995 | 3,005 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,649,045 | 1,659,722 |
Debt Securities, Held-to-Maturity, Fair Value | 1,454,805 | 1,486,642 |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 2,995 | 3,005 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,648,981 | 1,659,662 |
Debt Securities, Held-to-Maturity, Fair Value | 1,454,742 | 1,486,582 |
Residential Mortgage-Backed Securities [Member] | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 118,036 | 110,928 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 871,331 | 885,476 |
Debt Securities, Held-to-Maturity, Fair Value | 723,822 | 721,946 |
Residential Mortgage-Backed Securities [Member] | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 4,438,964 | 4,227,727 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 42,972 | 43,693 |
Debt Securities, Held-to-Maturity, Fair Value | 39,977 | 39,927 |
Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 118,036 | 110,928 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 871,331 | 885,476 |
Debt Securities, Held-to-Maturity, Fair Value | 723,822 | 721,946 |
Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 4,438,964 | 4,227,727 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 42,972 | 43,693 |
Debt Securities, Held-to-Maturity, Fair Value | 39,977 | 39,927 |
Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 320,057 | 324,182 |
Debt Securities, Held-to-Maturity, Fair Value | 268,201 | 266,353 |
Commercial Mortgage-Backed Securities [Member] | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 16,959 | 17,000 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 770,177 | 772,456 |
Debt Securities, Held-to-Maturity, Fair Value | 640,734 | 623,595 |
Commercial Mortgage-Backed Securities [Member] | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 111,433 | 111,475 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 51,281 | 52,219 |
Debt Securities, Held-to-Maturity, Fair Value | 45,621 | 46,032 |
Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 16,959 | 17,000 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 770,177 | 772,456 |
Debt Securities, Held-to-Maturity, Fair Value | 640,734 | 623,595 |
Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 111,433 | 111,475 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 51,281 | 52,219 |
Debt Securities, Held-to-Maturity, Fair Value | 45,621 | 46,032 |
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 104,774 | 107,839 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 0 |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 |  |
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 104,774 | 107,839 |
US Government-sponsored Enterprises Debt Securities [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 410 | 471 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 0 |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 |  |
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 410 | 471 |
Other Debt Obligations | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 2,999 | 2,989 |
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 4,796,570 | 4,581,434 |
Held-to-maturity Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 3,705,793 | 3,738,687 |
Debt Securities, Held-to-Maturity, Fair Value | 3,174,106 | 3,185,434 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and Due from Banks | 521,323 | 544,059 |
Interest-bearing Deposits in Banks and Other Financial Institutions | 711,033 | 453,590 |
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure | 105 | 21,955 |
Equity Securities, FV-NI | 10,760 | 10,670 |
FHLB and Federal Reserve Bank stocks | 0 | 0 |
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure | 0 | 0 |
Loan, Held-for-Sale, Fair Value Disclosure | 0 | 0 |
Loans Receivable, Fair Value Disclosure | 0 | 0 |
Life Insurance, Corporate or Bank Owned, Amount | 0 | 0 |
Servicing Asset | 0 | 0 |
Assets, Fair Value Disclosure | 1,244,229 | 1,031,273 |
Liabilities, Fair Value Disclosure |  |  |
Noninterest-bearing Domestic Deposit, Demand | 0 | 0 |
Deposits, Savings Deposits | 0 | 0 |
Interest-Bearing Domestic Deposit, Demand | 0 | 0 |
Deposits, Money Market Deposits | 0 | 0 |
Brokered CDs, Fair Value | 0 | 0 |
Time Deposits | 0 | 0 |
Deposits | 0 | 0 |
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 0 | 0 |
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 0 | 0 |
Long-term Debt, Fair Value | 0 | 0 |
Long-Term Line of Credit | 0 | 0 |
Liabilities, Fair Value Disclosure | 0 | 0 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Interest Rate Lock Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset |  | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 |  |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 | 0 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 0 | 0 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 | 0 |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 0 | 0 |
Fair Value, Inputs, Level 1 | US Treasury Securities | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 1,009 | 999 |
Fair Value, Inputs, Level 1 | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 1 | Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 1 | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 1 | Other Debt Obligations | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 1 | Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 1 | Held-to-maturity Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 1,009 | 999 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and Due from Banks | 0 | 0 |
Interest-bearing Deposits in Banks and Other Financial Institutions | 0 | 0 |
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure | 0 | 0 |
Equity Securities, FV-NI | 0 | 0 |
FHLB and Federal Reserve Bank stocks | 194,244 | 179,665 |
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure | 47,611 | 646,687 |
Loan, Held-for-Sale, Fair Value Disclosure | 7,910 | 32,634 |
Loans Receivable, Fair Value Disclosure | 0 | 0 |
Life Insurance, Corporate or Bank Owned, Amount | 690,551 | 689,000 |
Servicing Asset | 0 | 0 |
Assets, Fair Value Disclosure | 9,003,788 | 9,412,129 |
Liabilities, Fair Value Disclosure |  |  |
Noninterest-bearing Domestic Deposit, Demand | 0 | 0 |
Deposits, Savings Deposits | 0 | 0 |
Interest-Bearing Domestic Deposit, Demand | 0 | 0 |
Deposits, Money Market Deposits | 0 | 0 |
Brokered CDs, Fair Value | 4,197,512 | 4,276,309 |
Time Deposits | 3,720,793 | 3,700,518 |
Deposits | 7,918,305 | 7,976,827 |
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 311,336 | 470,370 |
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 2,026,570 | 1,852,685 |
Long-term Debt, Fair Value | 591,715 | 823,991 |
Long-Term Line of Credit | 2,628 | 2,546 |
Liabilities, Fair Value Disclosure | 10,989,386 | 11,304,992 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 2,085 | 4,315 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 1,846 | 4,106 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Interest Rate Lock Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset |  | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 |  |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 8,813 | 2,960 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 418 | 2,976 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 1,460 | 2,457 |
Foreign Currency Contract, Asset, Fair Value Disclosure | 1,460 | 2,457 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 115 | 563 |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 115 | 563 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 81,446 | 88,541 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 136,453 | 170,928 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 2,085 | 4,315 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 1,846 | 4,106 |
Fair Value, Inputs, Level 2 | US Treasury Securities | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 2 | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 2,995 | 3,005 |
Debt Securities, Held-to-Maturity, Fair Value | 1,454,742 | 1,486,582 |
Fair Value, Inputs, Level 2 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 118,036 | 110,928 |
Debt Securities, Held-to-Maturity, Fair Value | 723,822 | 721,946 |
Fair Value, Inputs, Level 2 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 4,438,964 | 4,227,727 |
Debt Securities, Held-to-Maturity, Fair Value | 39,977 | 39,927 |
Fair Value, Inputs, Level 2 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 268,201 | 266,353 |
Fair Value, Inputs, Level 2 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 16,959 | 17,000 |
Debt Securities, Held-to-Maturity, Fair Value | 640,734 | 623,595 |
Fair Value, Inputs, Level 2 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 111,433 | 111,475 |
Debt Securities, Held-to-Maturity, Fair Value | 45,621 | 46,032 |
Fair Value, Inputs, Level 2 | Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 104,774 | 107,839 |
Fair Value, Inputs, Level 2 | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 410 | 471 |
Fair Value, Inputs, Level 2 | Other Debt Obligations | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 2,999 | 2,989 |
Fair Value, Inputs, Level 2 | Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 4,796,570 | 4,581,434 |
Fair Value, Inputs, Level 2 | Held-to-maturity Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 3,173,098 | 3,184,435 |
Fair Value, Inputs, Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity Securities, FV-NI | 71 | 72 | $ 24,769
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and Due from Banks | 0 | 0 |
Interest-bearing Deposits in Banks and Other Financial Institutions | 0 | 0 |
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure | 0 | 0 |
Equity Securities, FV-NI | 71 | 72 |
FHLB and Federal Reserve Bank stocks | 0 | 0 |
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure | 0 | 0 |
Loan, Held-for-Sale, Fair Value Disclosure | 0 | 0 |
Loans Receivable, Fair Value Disclosure | 29,057,135 | 28,327,115 |
Life Insurance, Corporate or Bank Owned, Amount | 0 | 0 |
Servicing Asset | 86,251 | 87,683 |
Assets, Fair Value Disclosure | 29,144,444 | 28,415,450 |
Liabilities, Fair Value Disclosure |  |  |
Noninterest-bearing Domestic Deposit, Demand | 6,135,946 | 5,775,657 |
Deposits, Savings Deposits | 5,247,291 | 5,133,295 |
Interest-Bearing Domestic Deposit, Demand | 9,075,133 | 9,124,741 |
Deposits, Money Market Deposits | 6,820,038 | 6,637,915 |
Brokered CDs, Fair Value | 0 | 0 |
Time Deposits | 0 | 0 |
Deposits | 27,278,408 | 26,671,607 |
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 0 | 0 |
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 0 | 0 |
Long-term Debt, Fair Value | 0 | 0 |
Long-Term Line of Credit | 0 | 0 |
Liabilities, Fair Value Disclosure | 27,278,991 | 26,671,607 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Interest Rate Lock Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 988 | 327 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset |  | 254 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 583 |  |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 | 0 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 0 | 0 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Derivative Liability | 0 | 0 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 | 0 |
Liabilities, Fair Value Disclosure |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | 0 | 0 |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Lock Commitments [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative Asset | 988 | 580 |
Fair Value, Inputs, Level 3 | US Treasury Securities | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | US Government Sponsored-Enterprise Insured Loans |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 | Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 3 | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 3 | Other Debt Obligations | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 3 | Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Available-for-Sale | 0 | 0 |
Fair Value, Inputs, Level 3 | Held-to-maturity Securities [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0 |
Fair Value, Inputs, NAV [Member] | Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity Securities, FV-NI | $ 12,500 | $ 12,500 |

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- Definition This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(12)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 325 -SubTopic 30 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481612/325-30-25-1 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 + Details
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