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Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2017
Stockholders' Equity Note [Abstract] |
Schedule of tax effect allocated to each component of other comprehensive income | The following tables present reclassifications out of the accumulated other comprehensive income (loss) for the three and six month periods ended June 30, 2017 and 2016.
| Three Months Ended June 30, 2017
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |  |  |  |
Change in net unrealized gain/loss during the period | $ | 3,051 |  |  | $ | (1,220 | ) |  | $ | 1,831 |
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income | 0 |  |  | 0 |  |  | 0 |
Net unrealized gains | 3,051 |  |  | (1,220 | ) |  | 1,831 |
Employee benefit plans: |  |  |  |  |  |  |  |
Amortization of net retirement plan actuarial gain | 397 |  |  | (159 | ) |  | 238 |
Amortization of net retirement plan prior service cost | (15 | ) |  | 6 |  |  | (9 | )
Employee benefit plans | 382 |  |  | (153 | ) |  | 229 |
Other comprehensive income | $ | 3,433 |  |  | $ | (1,373 | ) |  | $ | 2,060 |
| Three Months Ended June 30, 2016
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |  |  |  |
Change in net unrealized gain/loss during the period | $ | 8,362 |  |  | $ | (3,344 | ) |  | $ | 5,018 |
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income | (240 | ) |  | 96 |  |  | (144 | )
Net unrealized gains | 8,122 |  |  | (3,248 | ) |  | 4,874 |
Employee benefit plans: |  |  |  |  |  |  |  |
Amortization of net retirement plan actuarial gain | 326 |  |  | (131 | ) |  | 195 |
Amortization of net retirement plan prior service cost | 8 |  |  | (3 | ) |  | 5 |
Employee benefit plans | 334 |  |  | (134 | ) |  | 200 |
Other comprehensive income | $ | 8,456 |  |  | $ | (3,382 | ) |  | $ | 5,074 |
| Six Months Ended June 30, 2017
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |  |  |  |
Change in net unrealized gain/loss during the period | $ | 5,044 |  |  | $ | (2,016 | ) |  | $ | 3,028 |
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income | 0 |  |  | 0 |  |  | 0 |
Net unrealized gains | 5,044 |  |  | (2,016 | ) |  | 3,028 |
Employee benefit plans: |  |  |  |  |  |  |  |
Amortization of net retirement plan actuarial gain | 754 |  |  | (302 | ) |  | 452 |
Amortization of net retirement plan prior service cost | 8 |  |  | (3 | ) |  | 5 |
Employee benefit plans | 762 |  |  | (305 | ) |  | 457 |
Other comprehensive income | $ | 5,806 |  |  | $ | (2,321 | ) |  | $ | 3,485 |
| Six Months Ended June 30, 2016
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |  |  |  |
Change in net unrealized gain/loss during the period | $ | 29,317 |  |  | $ | (11,724 | ) |  | $ | 17,593 |
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income | (472 | ) |  | 189 |  |  | (283 | )
Net unrealized gains | 28,845 |  |  | (11,535 | ) |  | 17,310 |
Employee benefit plans: |  |  |  |  |  |  |  |
Amortization of net retirement plan actuarial gain | 669 |  |  | (268 | ) |  | 401 |
Amortization of net retirement plan prior service credit | 38 |  |  | (15 | ) |  | 23 |
Employee benefit plans | 707 |  |  | (283 | ) |  | 424 |
Other comprehensive income | $ | 29,552 |  |  | $ | (11,818 | ) |  | $ | 17,734 |
Schedule of accumulated other comprehensive income | The following table presents the activity in our accumulated other comprehensive income (loss) for the periods indicated:
(in thousands) | Available-for- Sale Securities |  | Employee Benefit Plans |  | Accumulated Other Comprehensive (Loss) Income
Balance at March 31, 2017 | $ | (6,718 | ) |  | $ | (28,966 | ) |  | $ | (35,684 | )
Other comprehensive income before reclassifications | 1,831 |  |  | 0 |  |  | 1,831 |
Amounts reclassified from accumulated other comprehensive (loss) income | 0 |  |  | 229 |  |  | 229 |
Net current-period other comprehensive income | 1,831 |  |  | 229 |  |  | 2,060 |
Balance at June 30, 2017 | $ | (4,887 | ) |  | $ | (28,737 | ) |  | $ | (33,624 | )
Balance at January 1, 2017 | $ | (7,915 | ) |  | $ | (29,194 | ) |  | $ | (37,109 | )
Other comprehensive income before reclassifications | 3,028 |  |  | 0 |  |  | 3,028 |
Amounts reclassified from accumulated other comprehensive (loss) income | 0 |  |  | 457 |  |  | 457 |
Net current-period other comprehensive income | 3,028 |  |  | 457 |  |  | 3,485 |
Balance at June 30, 2017 | $ | (4,887 | ) |  | $ | (28,737 | ) |  | $ | (33,624 | )
(in thousands) | Available-for- Sale Securities |  | Employee Benefit Plans |  | Accumulated Other Comprehensive (Loss) Income
Balance at March 31, 2016 | $ | 9,692 |  |  | $ | (28,033 | ) |  | $ | (18,341 | )
Other comprehensive income before reclassifications | 5,018 |  |  | 0 |  |  | 5,018 |
Amounts reclassified from accumulated other comprehensive (loss) income | (144 | ) |  | 200 |  |  | 56 |
Net current-period other comprehensive income | 4,874 |  |  | 200 |  |  | 5,074 |
Balance at June 30, 2016 | $ | 14,566 |  |  | $ | (27,833 | ) |  | $ | (13,267 | )
Balance at January 1, 2016 | $ | (2,744 | ) |  | $ | (28,257 | ) |  | $ | (31,001 | )
Other comprehensive income before reclassifications | 17,593 |  |  | 0 |  |  | 17,593 |
Amounts reclassified from accumulated other comprehensive (loss) income | (283 | ) |  | 424 |  |  | 141 |
Net current-period other comprehensive income | 17,310 |  |  | 424 |  |  | 17,734 |
Balance at June 30, 2016 | $ | 14,566 |  |  | $ | (27,833 | ) |  | $ | (13,267 | )
The following tables present the amounts reclassified out of each component of accumulated other comprehensive (loss) income for the three and six months ended June 30, 2017 and 2016.
Three months ended June 30, 2017 |  |  |
Details about Accumulated other Comprehensive Income Components (in thousands) | Amount Reclassified from Accumulated Other Comprehensive (Loss) Income 1 |  | Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities: |  |  |  |
Unrealized gains and losses on available-for-sale securities | $ | 0 |  |  | Net gain on securities transactions
| 0 |  |  | Tax expense
| 0 |  |  | Net of tax
Employee benefit plans: |  |  |  |
Amortization of the following 2 |  |  |  |
Net retirement plan actuarial gain | (397 | ) |  | Pension and other employee benefits
Net retirement plan prior service cost | 15 |  |  | Pension and other employee benefits
| (382 | ) |  | Total before tax
| 153 |  |  | Tax benefit
| (229 | ) |  | Net of tax
Six Months Ended June 30, 2017 |  |  |
Details about Accumulated other Comprehensive Income Components (in thousands) | Amount Reclassified from Accumulated Other Comprehensive Income 1 |  | Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities: |  |  |
Unrealized gains and losses on available-for-sale securities | $ | 0 |  |  | Net gain on securities transactions
| 0 |  |  | Tax expense
| 0 |  |  | Net of tax
Employee benefit plans: |  |  |
Amortization of the following 2 |  |  |
Net retirement plan actuarial loss | (754 | ) |  | Pension and other employee benefits
Net retirement plan prior service credit | (8 | ) |  | Pension and other employee benefits
| (762 | ) |  | Total before tax
| 305 |  |  | Tax benefit
| (457 | ) |  | Net of tax
Three Months Ended June 30, 2016 |  |  |
Details about Accumulated other Comprehensive Income Components (in thousands) | Amount Reclassified from Accumulated Other Comprehensive (Loss) Income 1 |  | Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities: |  |  |
Unrealized gains and losses on available-for-sale securities | $ | 240 |  |  | Net gain on securities transactions
| (96 | ) |  | Tax expense
| 144 |  |  | Net of tax
Employee benefit plans: |  |  |
Amortization of the following 2 |  |  |
Net retirement plan actuarial gain | (326 | ) |  | Pension and other employee benefits
Net retirement plan prior service credit | (8 | ) |  | Pension and other employee benefits
| (334 | ) |  | Total before tax
| 134 |  |  | Tax benefit
| (200 | ) |  | Net of tax
Six Months Ended June 30, 2016 |  |  |
Details about Accumulated other Comprehensive Income Components (in thousands) | Amount Reclassified from Accumulated Other Comprehensive (Loss) Income 1 |  | Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities: |  |  |
Unrealized gains and losses on available-for-sale securities | $ | 472 |  |  | Net gain on securities transactions
| (189 | ) |  | Tax expense
| 283 |  |  | Net of tax
Employee benefit plans: |  |  |
Amortization of the following 2 |  |  |
Net retirement plan actuarial loss | (669 | ) |  | Pension and other employee benefits
Net retirement plan prior service cost | (38 | ) |  | Pension and other employee benefits
| (707 | ) |  | Total before tax
| 283 |  |  | Tax benefit
| (424 | ) |  | Net of tax
1 Amounts in parentheses indicated debits in income statement. 2 The accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit cost (See Note 10 - “Employee Benefit Plan”).

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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