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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 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 June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | (3,414 | ) |  | $ | (860 | ) |  | $ | (2,554 | )
Reclassification adjustment for net gains included in net income (1) |  |  | 90 |  |  |  | 23 |  |  |  | 67 |
Total securities available for sale and transferred securities |  |  | (3,324 | ) |  |  | (837 | ) |  |  | (2,487 | )
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | 303 |  |  |  | 76 |  |  |  | 227 |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (18 | ) |  |  | (5 | ) |  |  | (13 | )
Amortization of net actuarial loss included in income |  |  | 188 |  |  |  | 48 |  |  |  | 140 |
Total pension and post-retirement obligations |  |  | 170 |  |  |  | 43 |  |  |  | 127 |
Other comprehensive loss |  | $ | (2,851 | ) |  | $ | (718 | ) |  | $ | (2,133 | )
Six months ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | (11,879 | ) |  | $ | (2,994 | ) |  | $ | (8,885 | )
Reclassification adjustment for net gains included in net income (1) |  |  | 172 |  |  |  | 44 |  |  |  | 128 |
Total securities available for sale and transferred securities |  |  | (11,707 | ) |  |  | (2,950 | ) |  |  | (8,757 | )
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | 164 |  |  |  | 41 |  |  |  | 123 |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (36 | ) |  |  | (10 | ) |  |  | (26 | )
Amortization of net actuarial loss included in income |  |  | 375 |  |  |  | 95 |  |  |  | 280 |
Total pension and post-retirement obligations |  |  | 339 |  |  |  | 85 |  |  |  | 254 |
Other comprehensive loss |  | $ | (11,204 | ) |  | $ | (2,824 | ) |  | $ | (8,380 | )
(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 June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | 2,988 |  |  | $ | 1,154 |  |  | $ | 1,834 |
Reclassification adjustment for net gains included in net income (1) |  |  | (184 | ) |  |  | (72 | ) |  |  | (112 | )
Total securities available for sale and transferred securities |  |  | 2,804 |  |  |  | 1,082 |  |  |  | 1,722 |
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | — |  |  |  | — |  |  |  | — |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (13 | ) |  |  | (6 | ) |  |  | (7 | )
Amortization of net actuarial loss included in income |  |  | 291 |  |  |  | 113 |  |  |  | 178 |
Total pension and post-retirement obligations |  |  | 278 |  |  |  | 107 |  |  |  | 171 |
Other comprehensive income |  | $ | 3,082 |  |  | $ | 1,189 |  |  | $ | 1,893 |
Six months ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  | $ | 4,158 |  |  | $ | 1,605 |  |  | $ | 2,553 |
Reclassification adjustment for net gains included in net income (1) |  |  | (387 | ) |  |  | (150 | ) |  |  | (237 | )
Total securities available for sale and transferred securities |  |  | 3,771 |  |  |  | 1,455 |  |  |  | 2,316 |
Hedging derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period |  |  | — |  |  |  | — |  |  |  | — |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit included in income |  |  | (26 | ) |  |  | (10 | ) |  |  | (16 | )
Amortization of net actuarial loss included in income |  |  | 583 |  |  |  | 225 |  |  |  | 358 |
Total pension and post-retirement obligations |  |  | 557 |  |  |  | 215 |  |  |  | 342 |
Other comprehensive income |  | $ | 4,328 |  |  | $ | 1,670 |  |  | $ | 2,658 |
(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 June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (104 | ) |  | $ | (9,545 | ) |  | $ | (8,514 | ) |  | $ | (18,163 | )
Other comprehensive income (loss) before reclassifications |  |  | 227 |  |  |  | (2,554 | ) |  |  | — |  |  |  | (2,327 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 67 |  |  |  | 127 |  |  |  | 194 |
Net current period other comprehensive income (loss) |  |  | 227 |  |  |  | (2,487 | ) |  |  | 127 |  |  |  | (2,133 | )
Balance at end of period |  | $ | 123 |  |  | $ | (12,032 | ) |  | $ | (8,387 | ) |  | $ | (20,296 | )
Six months ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (3,275 | ) |  | $ | (8,641 | ) |  | $ | (11,916 | )
Other comprehensive income (loss) before reclassifications |  |  | 123 |  |  |  | (8,885 | ) |  |  | — |  |  |  | (8,762 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 128 |  |  |  | 254 |  |  |  | 382 |
Net current period other comprehensive income (loss) |  |  | 123 |  |  |  | (8,757 | ) |  |  | 254 |  |  |  | (8,380 | )
Balance at end of period |  | $ | 123 |  |  | $ | (12,032 | ) |  | $ | (8,387 | ) |  | $ | (20,296 | )
Three months ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (3,135 | ) |  | $ | (10,051 | ) |  | $ | (13,186 | )
Other comprehensive income (loss) before reclassifications |  |  | — |  |  |  | 1,834 |  |  |  | — |  |  |  | 1,834 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | (112 | ) |  |  | 171 |  |  |  | 59 |
Net current period other comprehensive income (loss) |  |  | — |  |  |  | 1,722 |  |  |  | 171 |  |  |  | 1,893 |
Balance at end of period |  | $ | — |  |  | $ | (1,413 | ) |  | $ | (9,880 | ) |  | $ | (11,293 | )
Six months ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | — |  |  | $ | (3,729 | ) |  | $ | (10,222 | ) |  | $ | (13,951 | )
Other comprehensive income (loss) before reclassifications |  |  | — |  |  |  | 2,553 |  |  |  | — |  |  |  | 2,553 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | (237 | ) |  |  | 342 |  |  |  | 105 |
Net current period other comprehensive income (loss) |  |  | — |  |  |  | 2,316 |  |  |  | 342 |  |  |  | 2,658 |
Balance at end of period |  | $ | — |  |  | $ | (1,413 | ) |  | $ | (9,880 | ) |  | $ | (11,293 | )
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 |  |  |
|  | June 30, |  |  |
|  | 2018 |  |  | 2017 |  |  |
Realized gain on sale of investment securities |  | $ | 7 |  |  | $ | 210 |  |  | Net gain on investment securities
Amortization of unrealized holding gains (losses) on investment securities transferred from available for sale to held to maturity |  |  | (97 | ) |  |  | (26 | ) |  | Interest income
|  |  | (90 | ) |  |  | 184 |  |  | Total before tax
|  |  | 23 |  |  |  | (72 | ) |  | Income tax benefit (expense)
|  |  | (67 | ) |  |  | 112 |  |  | Net of tax
Amortization of pension and post-retirement items: |  |  |  |  |  |  |  |  |  |
Prior service credit (1) |  |  | 18 |  |  |  | 13 |  |  | Salaries and employee benefits
Net actuarial losses (1) |  |  | (188 | ) |  |  | (291 | ) |  | Salaries and employee benefits
|  |  | (170 | ) |  |  | (278 | ) |  | Total before tax
|  |  | 43 |  |  |  | 107 |  |  | Income tax benefit
|  |  | (127 | ) |  |  | (171 | ) |  | Net of tax
Total reclassified for the period |  | $ | (194 | ) |  | $ | (59 | ) |  |
|  | Six months ended |  |  |
|  | June 30, |  |  |
|  | 2018 |  |  | 2017 |  |  |
Realized gain on sale of investment securities |  | $ | 7 |  |  | $ | 416 |  |  | Net gain on investment securities
Amortization of unrealized holding gains (losses) on investment securities transferred from available for sale to held to maturity |  |  | (179 | ) |  |  | (29 | ) |  | Interest income
|  |  | (172 | ) |  |  | 387 |  |  | Total before tax
|  |  | 44 |  |  |  | (150 | ) |  | Income tax benefit (expense)
|  |  | (128 | ) |  |  | 237 |  |  | Net of tax
Amortization of pension and post-retirement items: |  |  |  |  |  |  |  |  |  |
Prior service credit (1) |  |  | 36 |  |  |  | 26 |  |  | Salaries and employee benefits
Net actuarial losses (1) |  |  | (375 | ) |  |  | (583 | ) |  | Salaries and employee benefits
|  |  | (339 | ) |  |  | (557 | ) |  | Total before tax
|  |  | 85 |  |  |  | 215 |  |  | Income tax benefit
|  |  | (254 | ) |  |  | (342 | ) |  | Net of tax
Total reclassified for the period |  | $ | (382 | ) |  | $ | (105 | ) |  |
(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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