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Revenue from Contract with Customer (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disaggregation of Revenue [Line Items] |  |  |
Personal trust and agency accounts income | $ 10,091 | $ 10,264 | $ 8,761
Employee benefit and retirement-related accounts income | 9,698 | 9,705 | 7,921
Investment management and investment advisory agency accounts income | 12,442 | 12,620 | 10,652
Other income from fiduciary activities | 1,860 | 1,860 | 1,539
Non-sufficient funds (NSF) fees | 6,095 | 5,244 | 4,999
Demand deposit account (DDA) charges | 3,439 | 3,074 | 2,920
Other service charges on deposit accounts | 557 | 514 | 526
Credit card other service income | 2,808 | 2,563 | 2,112
HELOC other service income | 397 | 389 | 424
Installment other service income | 163 | 148 | 165
Real estate other service income | 9,952 | 24,907 | 32,889
Commercial other service income | 1,975 | 1,805 | 2,021
Debit card fee income | 26,046 | 25,865 | 22,160
Bank Owned Life Insurance Income | 6,100 | 4,897 | 4,789
ATM Fees | 2,273 | 2,379 | 1,773
Gains (Losses) on Sales of Other Real Estate | 5,611 | (4) | 1,207
Real Estate Owned, Valuation Allowance, Valuation Increase | 12,039 | 64 | 105
Debt and Equity Securities, Gain (Loss) |  |  | 3,286
Gain on equity securities, net | 2,955 | 5,011 | 2,182
Other components of net periodic benefit income | 12,108 | 8,152 | 7,952
Noninterest Income, Other | 9,326 | 10,487 | 7,281
Noninterest Income | 135,935 | 129,944 | 125,664
Bank Servicing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Noninterest Income, Other | 15,300 | 29,800 | 37,600
Within Scope [Domain] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Noninterest Income, Other | 5,600 | 5,300 | 5,200
Out of Scope [Domain] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Noninterest Income, Other | 9,700 | 24,500 | 32,400
Pnb Segment [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Personal trust and agency accounts income | 10,091 | 10,264 | 8,761
Employee benefit and retirement-related accounts income | 9,698 | 9,705 | 7,921
Investment management and investment advisory agency accounts income | 12,442 | 12,620 | 10,652
Other income from fiduciary activities | 1,860 | 1,860 | 1,539
Non-sufficient funds (NSF) fees | 6,095 | 5,244 | 4,999
Demand deposit account (DDA) charges | 3,439 | 3,074 | 2,920
Other service charges on deposit accounts | 557 | 514 | 526
Credit card other service income | 2,808 | 2,559 | 2,108
HELOC other service income | 397 | 389 | 424
Installment other service income | 163 | 148 | 165
Real estate other service income | 9,952 | 24,907 | 32,827
Commercial other service income | 1,214 | 1,280 | 1,493
Debit card fee income | 26,046 | 25,865 | 22,160
Bank Owned Life Insurance Income | 4,656 | 4,202 | 4,521
ATM Fees | 2,273 | 2,379 | 1,773
Gains (Losses) on Sales of Other Real Estate | 4 | (4) | 836
Real Estate Owned, Valuation Allowance, Valuation Increase | 30 | 64 | 105
Debt and Equity Securities, Gain (Loss) |  |  | 3,286
Gain on equity securities, net | 2,068 | 3,793 | 2,429
Other components of net periodic benefit income | 11,819 | 7,946 | 7,759
Noninterest Income, Other | 9,599 | 9,993 | 7,027
Noninterest Income | 115,211 | 126,802 | 124,231
Other Segments [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Personal trust and agency accounts income | 0 | 0 | 0
Employee benefit and retirement-related accounts income | 0 | 0 | 0
Investment management and investment advisory agency accounts income | 0 | 0 | 0
Other income from fiduciary activities | 0 | 0 | 0
Non-sufficient funds (NSF) fees | 0 | 0 | 0
Demand deposit account (DDA) charges | 0 | 0 | 0
Other service charges on deposit accounts | 0 | 0 | 0
Credit card other service income | 0 | 4 | 4
HELOC other service income | 0 | 0 | 0
Installment other service income | 0 | 0 | 0
Real estate other service income | 0 | 0 | 62
Commercial other service income | 761 | 525 | 528
Debit card fee income | 0 | 0 | 0
Bank Owned Life Insurance Income | 1,444 | 695 | 268
ATM Fees | 0 | 0 | 0
Gains (Losses) on Sales of Other Real Estate | 5,607 | 0 | 371
Real Estate Owned, Valuation Allowance, Valuation Increase | 12,009 | 0 | 0
Debt and Equity Securities, Gain (Loss) |  |  | 0
Gain on equity securities, net | 887 | 1,218 | (247)
Other components of net periodic benefit income | 289 | 206 | 193
Noninterest Income, Other | (273) | 494 | 254
Noninterest Income | $ 20,724 | $ 3,142 | $ 1,433

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