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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Other service income | $ 4,172 | $ 2,804
Personal trust and agency accounts | 2,126 | 1,786
Employee benefit and retirement-related accounts | 1,643 | 1,450
Investment management and investment advisory agency accounts | 2,244 | 1,968
Other | 382 | 310
Non-sufficient funds (NSF) fees | 1,834 | 1,985
Demand deposit account (DDA) charges | 926 | 985
Other | 162 | 169
Credit card | 511 | 420
HELOC | 99 | 91
Installment | 64 | 158
Real estate | 2,246 | 1,812
Commercial | 1,252 | 323
Checkcard fee income | 4,002 | 3,761
Bank owned life insurance income | 1,009 | 1,103
ATM Fees | 524 | 542
OREO valuation adjustments | (207) | (73)
Gain on sale of OREO, net | 4,321 | 100
Other components of net periodic benefit income | 1,705 | 1,448
Other | 842 | 617
Total other income | 26,903 | 18,955
Net loss on sale of investment securities (2) | (2,271) |
Unrealized gain loss on equity securities | (3,489) | 0
Within Scope [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Other service income | 3,100 | 1,900
Out of Scope [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Other service income | 1,100 | 900
PNB [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Personal trust and agency accounts | 2,126 | 1,786
Employee benefit and retirement-related accounts | 1,643 | 1,450
Investment management and investment advisory agency accounts | 2,244 | 1,968
Other | 382 | 310
Non-sufficient funds (NSF) fees | 1,834 | 1,985
Demand deposit account (DDA) charges | 926 | 985
Other | 162 | 169
Credit card | 504 | 420
HELOC | 99 | 91
Installment | 64 | 158
Real estate | 2,246 | 1,812
Commercial | 242 | 323
Checkcard fee income | 4,002 | 3,761
Bank owned life insurance income | 922 | 1,007
ATM Fees | 524 | 542
OREO valuation adjustments | 30 | 73
Gain on sale of OREO, net | 1,585 | 100
Other components of net periodic benefit income | 1,652 | 1,403
Other | 1,032 | 917
Total other income | 19,915 | 19,114
Net loss on sale of investment securities (2) | (2,271) |
Unrealized gain loss on equity securities | 27 |
GFSC [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Personal trust and agency accounts | 0 | 0
Employee benefit and retirement-related accounts | 0 | 0
Investment management and investment advisory agency accounts | 0 | 0
Other | 0 | 0
Non-sufficient funds (NSF) fees | 0 | 0
Demand deposit account (DDA) charges | 0 | 0
Other | 0 | 0
Credit card | 7 | 0
HELOC | 0 | 0
Installment | 0 | 0
Real estate | 0 | 0
Commercial | 0 | 0
Checkcard fee income | 0 | 0
Bank owned life insurance income | 0 | 0
ATM Fees | 0 | 0
OREO valuation adjustments | 0 | 0
Gain on sale of OREO, net | 0 | 0
Other components of net periodic benefit income | 19 | 16
Other | 4 | 0
Total other income | 30 | 16
Net loss on sale of investment securities (2) | 0 |
Unrealized gain loss on equity securities | 0 |
SEPH [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Personal trust and agency accounts | 0 | 0
Employee benefit and retirement-related accounts | 0 | 0
Investment management and investment advisory agency accounts | 0 | 0
Other | 0 | 0
Non-sufficient funds (NSF) fees | 0 | 0
Demand deposit account (DDA) charges | 0 | 0
Other | 0 | 0
Credit card | 0 | 0
HELOC | 0 | 0
Installment | 0 | 0
Real estate | 0 | 0
Commercial | 1,010 | 0
Checkcard fee income | 0 | 0
Bank owned life insurance income | 0 | 0
ATM Fees | 0 | 0
OREO valuation adjustments | 177 | 0
Gain on sale of OREO, net | 2,736 | 0
Other components of net periodic benefit income | 34 | 29
Other | (16) | 0
Total other income | 3,587 | 29
Net loss on sale of investment securities (2) | 0 |
Unrealized gain loss on equity securities | 0 |
All Other [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Personal trust and agency accounts | 0 | 0
Employee benefit and retirement-related accounts | 0 | 0
Investment management and investment advisory agency accounts | 0 | 0
Other | 0 | 0
Non-sufficient funds (NSF) fees | 0 | 0
Demand deposit account (DDA) charges | 0 | 0
Other | 0 | 0
Credit card | 0 | 0
HELOC | 0 | 0
Installment | 0 | 0
Real estate | 0 | 0
Commercial | 0 | 0
Checkcard fee income | 0 | 0
Bank owned life insurance income | 87 | 96
ATM Fees | 0 | 0
OREO valuation adjustments | 0 | 0
Gain on sale of OREO, net | 0 | 0
Other components of net periodic benefit income | 0 | 0
Other | (178) | (300)
Total other income | 3,371 | $ (204)
Net loss on sale of investment securities (2) | 0 |
Unrealized gain loss on equity securities | $ 3,462 |

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- Definition The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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