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Commitments and Contingent Liabilities - Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financial instruments with off-balance sheet risk |  |
Contract amount | $ 6,700,000 | $ 6,100,000
Commitments to extend credit |  |
Financial instruments with off-balance sheet risk |  |
Contract amount | 6,490,301 | 5,934,535
Standby letters of credit |  |
Financial instruments with off-balance sheet risk |  |
Contract amount | 182,447 | 185,108
Commercial letters of credit |  |
Financial instruments with off-balance sheet risk |  |
Contract amount | $ 3,307 | $ 3,834

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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