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Revenue Recognition - Summary of Noninterest Income Segregated by Revenue Streams In-Scope and Out-of-Scope of Topic 606 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Service Charges on Deposit Accounts	$ 25,564	$ 24,910	$ 30,074
Fees, Exchange, and Other Service Charges	55,457	47,056	57,893
Annuity and Insurance	3,224	3,362	6,934
Other	19,589	30,434	27,489
Noninterest Income	171,353	184,409	183,338
Accounting Standards Update 2014-09
Disaggregation of Revenue [Line Items]
Noninterest Income	171,353	184,409	183,338
Accounting Standards Update 2014-09 | Noninterest Income In Scope of Topic 606
Disaggregation of Revenue [Line Items]
Trust and Asset Management	46,068	43,456	44,233
Service Charges on Deposit Accounts	12,181	11,715	13,042
Fees, Exchange, and Other Service Charges	41,962	36,005	46,381
Annuity and Insurance	3,130	3,249	6,813
Other	8,684	8,626	9,633
Noninterest Income	112,025	103,051	120,102
Accounting Standards Update 2014-09 | Noninterest Income Out of Scope of Topic 606
Disaggregation of Revenue [Line Items]
Noninterest Income	$ 59,328	$ 81,358	$ 63,236

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- Definition

The noninterest income derived from the following: (1) fees and services from debit card services; (2) fees charged depositors for use of automated teller machines; (3) merchant service activity; (4) annual fees from loans; (5) other fees and service charges.

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Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from non-transaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (9) issuing stop payment orders; (10) certifying checks; (11) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department; and (12) penalties assessed on the early withdrawal of time deposits. Excludes amounts charged depositors for use of automated teller machines or remote service units.

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Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Amount of revenue earned, classified as other, excluding interest income.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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