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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2018
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Components Of Other Comprehensive Income (Loss) |
|  | Pre-tax Amount |  |  | Tax Effect |  |  | Net-of-tax Amount |
Three months ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | (2,532 | ) |  | $ | (639 | ) |  | $ | (1,893 | )
Reclassification adjustment for net gains included in net income (1) |  |  | 209 |  |  |  | 52 |  |  |  | 157 |
Total securities available for sale and transferred securities |  |  | (2,323 | ) |  |  | (587 | ) |  |  | (1,736 | )
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | 114 |  |  |  | 29 |  |  |  | 85 |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (18 | ) |  |  | (4 | ) |  |  | (14 | )
Amortization of net actuarial loss included in income |  |  | 188 |  |  |  | 47 |  |  |  | 141 |
Total pension and post-retirement obligations |  |  | 170 |  |  |  | 43 |  |  |  | 127 |
Other comprehensive loss |  | $ | (2,039 | ) |  | $ | (515 | ) |  | $ | (1,524 | )
Nine months ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | (14,411 | ) |  | $ | (3,633 | ) |  | $ | (10,778 | )
Reclassification adjustment for net gains included in net income (1) |  |  | 381 |  |  |  | 96 |  |  |  | 285 |
Total securities available for sale and transferred securities |  |  | (14,030 | ) |  |  | (3,537 | ) |  |  | (10,493 | )
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | 278 |  |  |  | 70 |  |  |  | 208 |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (54 | ) |  |  | (14 | ) |  |  | (40 | )
Amortization of net actuarial loss included in income |  |  | 563 |  |  |  | 142 |  |  |  | 421 |
Total pension and post-retirement obligations |  |  | 509 |  |  |  | 128 |  |  |  | 381 |
Other comprehensive loss |  | $ | (13,243 | ) |  | $ | (3,339 | ) |  | $ | (9,904 | )
(1) | Includes amounts related to the amortization/accretion of unrealized net gains and losses related to the Company’s reclassification of available for sale investment securities to the held to maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield.
|  | Pre-tax Amount |  |  | Tax Effect |  |  | Net-of-tax Amount |
Three months ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | 589 |  |  | $ | 226 |  |  | $ | 363 |
Reclassification adjustment for net gains included in net income (1) |  |  | (127 | ) |  |  | (48 | ) |  |  | (79 | )
Total securities available for sale and transferred securities |  |  | 462 |  |  |  | 178 |  |  |  | 284 |
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | — |  |  |  | — |  |  |  | — |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (12 | ) |  |  | (4 | ) |  |  | (8 | )
Amortization of net actuarial loss included in income |  |  | 291 |  |  |  | 112 |  |  |  | 179 |
Total pension and post-retirement obligations |  |  | 279 |  |  |  | 108 |  |  |  | 171 |
Other comprehensive income |  | $ | 741 |  |  | $ | 286 |  |  | $ | 455 |
Nine months ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | 4,747 |  |  | $ | 1,831 |  |  | $ | 2,916 |
Reclassification adjustment for net gains included in net income (1) |  |  | (514 | ) |  |  | (198 | ) |  |  | (316 | )
Total securities available for sale and transferred securities |  |  | 4,233 |  |  |  | 1,633 |  |  |  | 2,600 |
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | — |  |  |  | — |  |  |  | — |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (38 | ) |  |  | (14 | ) |  |  | (24 | )
Amortization of net actuarial loss included in income |  |  | 874 |  |  |  | 337 |  |  |  | 537 |
Total pension and post-retirement obligations |  |  | 836 |  |  |  | 323 |  |  |  | 513 |
Other comprehensive income |  | $ | 5,069 |  |  | $ | 1,956 |  |  | $ | 3,113 |
(1) | Includes amounts related to the amortization/accretion of unrealized net gains and losses related to the Company’s reclassification of available for sale investment securities to the held to maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield.
Components Of Accumulated Other Comprehensive Income (Loss) |
|  | Hedging Derivative Instruments |  |  | Securities Available for Sale and Transferred Securities |  |  | Pension and Post- retirement Obligations |  |  | Accumulated Other Comprehensive Income (Loss) |
Three months ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | 123 |  |  | $ | (12,032 | ) |  | $ | (8,387 | ) |  | $ | (20,296 | )
Other comprehensive income (loss) before reclassifications |  |  | 85 |  |  |  | (1,893 | ) |  |  | — |  |  |  | (1,808 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 157 |  |  |  | 127 |  |  |  | 284 |
Net current period other comprehensive income (loss) |  |  | 85 |  |  |  | (1,736 | ) |  |  | 127 |  |  |  | (1,524 | )
Balance at end of period |  | $ | 208 |  |  | $ | (13,768 | ) |  | $ | (8,260 | ) |  | $ | (21,820 | )
Nine months ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (3,275 | ) |  | $ | (8,641 | ) |  | $ | (11,916 | )
Other comprehensive income (loss) before reclassifications |  |  | 208 |  |  |  | (10,778 | ) |  |  | — |  |  |  | (10,570 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 285 |  |  |  | 381 |  |  |  | 666 |
Net current period other comprehensive income (loss) |  |  | 208 |  |  |  | (10,493 | ) |  |  | 381 |  |  |  | (9,904 | )
Balance at end of period |  | $ | 208 |  |  | $ | (13,768 | ) |  | $ | (8,260 | ) |  | $ | (21,820 | )
Three months ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (1,413 | ) |  | $ | (9,880 | ) |  | $ | (11,293 | )
Other comprehensive income (loss) before reclassifications |  |  | — |  |  |  | 363 |  |  |  | — |  |  |  | 363 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | (79 | ) |  |  | 171 |  |  |  | 92 |
Net current period other comprehensive income (loss) |  |  | — |  |  |  | 284 |  |  |  | 171 |  |  |  | 455 |
Balance at end of period |  | $ | — |  |  | $ | (1,129 | ) |  | $ | (9,709 | ) |  | $ | (10,838 | )
Nine months ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (3,729 | ) |  | $ | (10,222 | ) |  | $ | (13,951 | )
Other comprehensive income (loss) before reclassifications |  |  | — |  |  |  | 2,916 |  |  |  | — |  |  |  | 2,916 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | (316 | ) |  |  | 513 |  |  |  | 197 |
Net current period other comprehensive income (loss) |  |  | — |  |  |  | 2,600 |  |  |  | 513 |  |  |  | 3,113 |
Balance at end of period |  | $ | — |  |  | $ | (1,129 | ) |  | $ | (9,709 | ) |  | $ | (10,838 | )
Amounts Reclassified Out Of Each Component Of Accumulated Other Comprehensive Income (Loss) |
Details About Accumulated Other Comprehensive Income (Loss) Components |  | Amount Reclassified from Accumulated Other Comprehensive Income (Loss) |  |  | Affected Line Item in the Consolidated Statement of Income
|  | Three months ended |  |  |
|  | September 30, |  |  |
|  | 2018 |  |  | 2017 |  |  |
Realized (loss) gain on sale of investment securities |  | $ | (95 | ) |  | $ | 184 |  |  | Net gain on investment securities
Amortization of unrealized holding gains (losses) on investment securities transferred from available for sale to held to maturity |  |  | (114 | ) |  |  | (57 | ) |  | Interest income
|  |  | (209 | ) |  |  | 127 |  |  | Total before tax
|  |  | 52 |  |  |  | (48 | ) |  | Income tax benefit (expense)
|  |  | (157 | ) |  |  | 79 |  |  | Net of tax
Amortization of pension and post-retirement items: |  |  |  |  |  |  |  |  |  |
Prior service credit (1) |  |  | 18 |  |  |  | 12 |  |  | Salaries and employee benefits
Net actuarial losses (1) |  |  | (188 | ) |  |  | (291 | ) |  | Salaries and employee benefits
|  |  | (170 | ) |  |  | (279 | ) |  | Total before tax
|  |  | 43 |  |  |  | 108 |  |  | Income tax benefit
|  |  | (127 | ) |  |  | (171 | ) |  | Net of tax
Total reclassified for the period |  | $ | (284 | ) |  | $ | (92 | ) |  |
|  | Nine months ended |  |  |
|  | September 30, |  |  |
|  | 2018 |  |  | 2017 |  |  |
Realized (loss) gain on sale of investment securities |  | $ | (88 | ) |  | $ | 600 |  |  | Net gain on investment securities
Amortization of unrealized holding gains (losses) on investment securities transferred from available for sale to held to maturity |  |  | (293 | ) |  |  | (86 | ) |  | Interest income
|  |  | (381 | ) |  |  | 514 |  |  | Total before tax
|  |  | 96 |  |  |  | (198 | ) |  | Income tax benefit (expense)
|  |  | (285 | ) |  |  | 316 |  |  | Net of tax
Amortization of pension and post-retirement items: |  |  |  |  |  |  |  |  |  |
Prior service credit (1) |  |  | 54 |  |  |  | 38 |  |  | Salaries and employee benefits
Net actuarial losses (1) |  |  | (563 | ) |  |  | (874 | ) |  | Salaries and employee benefits
|  |  | (509 | ) |  |  | (836 | ) |  | Total before tax
|  |  | 128 |  |  |  | 323 |  |  | Income tax benefit
|  |  | (381 | ) |  |  | (513 | ) |  | Net of tax
Total reclassified for the period |  | $ | (666 | ) |  | $ | (197 | ) |  |
(1) | These items are included in the computation of net periodic pension expense. See Note 11 – Employee Benefit Plans for additional information.

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e526-108580 + Details
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