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Other Comprehensive Income | 12 Months Ended
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Dec. 31, 2016
Stockholders' Equity Note [Abstract] |
Other Comprehensive Income | Other Comprehensive Income The tax effect allocated to each component of other comprehensive income (loss) were as follows:
December 31, 2016 | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |
(in thousands) |  |  |  |  |
Change in net unrealized losses during the period | $ | (7,689 | ) |  | $ | 3,074 |  |  | $ | (4,615 | )
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | (926 | ) |  | 370 |  |  | (556 | )
Net unrealized losses | (8,615 | ) |  | 3,444 |  |  | (5,171 | )
Employee benefit plans: |  |  |  |  |
Net retirement plan loss | (2,787 | ) |  | 1,114 |  |  | (1,673 | )
Net retirement plan prior service credit | (188 | ) |  | 75 |  |  | (113 | )
Amortization of net retirement plan actuarial loss | 1,338 |  |  | (535 | ) |  | 803 |
Amortization of net retirement plan prior service (cost) credit | 76 |  |  | (30 | ) |  | 46 |
Employee benefit plans | (1,561 | ) |  | 624 |  |  | (937 | )
Other comprehensive loss | $ | (10,176 | ) |  | $ | 4,068 |  |  | $ | (6,108 | )
December 31, 2015 | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |
(in thousands) |  |  |  |  |
Change in net unrealized gain during the period | $ | (8,241 | ) |  | $ | 3,295 |  |  | $ | (4,946 | )
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | (1,108 | ) |  | 443 |  |  | (665 | )
Net unrealized losses | (9,349 | ) |  | 3,738 |  |  | (5,611 | )
Employee benefit plans: |  |  |  |  |
Net retirement plan gain | 1,846 |  |  | (738 | ) |  | 1,108 |
Amortization of net retirement plan actuarial loss | 2,218 |  |  | (887 | ) |  | 1,331 |
Amortization of net retirement plan prior service (cost) credit | (6,362 | ) |  | 2,544 |  |  | (3,818 | )
Employee benefit plans | (2,298 | ) |  | 919 |  |  | (1,379 | )
Other comprehensive loss | $ | (11,647 | ) |  | $ | 4,657 |  |  | $ | (6,990 | )
December 31, 2014 | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax
Available-for-sale securities: |  |  |  |  |
(in thousands) |  |  |  |  |
Change in net unrealized loss during the period | $ | 19,094 |  |  | $ | (7,635 | ) |  | $ | 11,459 |
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | (391 | ) |  | 156 |  |  | (235 | )
Net unrealized gains | 18,703 |  |  | (7,479 | ) |  | 11,224 |
Employee benefit plans: |  |  |  |  |
Net retirement plan loss | (24,211 | ) |  | 9,684 |  |  | (14,527 | )
Net retirement plan prior service credit | 6,282 |  |  | (2,513 | ) |  | 3,769 |
Amortization of net retirement plan actuarial loss | 1,065 |  |  | (426 | ) |  | 639 |
Amortization of net retirement plan prior service credit | 5 |  |  | (2 | ) |  | 3 |
Employee benefit plans | (16,859 | ) |  | 6,743 |  |  | (10,116 | )
Other comprehensive income | $ | 1,844 |  |  | $ | (736 | ) |  | $ | 1,108 |
The following table presents the activity in our accumulated other comprehensive loss for the periods indicated:
(in thousands) | Available-for-Sale Securities |  | Employee Benefit Plans |  | Accumulated Other Comprehensive Income (loss)
Balance at January 1, 2014 | $ | (8,357 | ) |  | $ | (16,762 | ) |  | $ | (25,119 | )
Other comprehensive (loss) income | 11,224 |  |  | (10,116 | ) |  | 1,108 |
Balance at December 31, 2014 | $ | 2,867 |  |  | $ | (26,878 | ) |  | $ | (24,011 | )
Balance at January 1, 2015 | 2,867 |  |  | (26,878 | ) |  | (24,011 | )
Other comprehensive loss | (5,611 | ) |  | (1,379 | ) |  | (6,990 | )
Balance at December 31, 2015 | $ | (2,744 | ) |  | $ | (28,257 | ) |  | $ | (31,001 | )
Balance at January 1, 2016 | (2,744 | ) |  | (28,257 | ) |  | (31,001 | )
Other comprehensive loss | (5,171 | ) |  | (937 | ) |  | (6,108 | )
Balance at December 31, 2016 | $ | (7,915 | ) |  | $ | (29,194 | ) |  | $ | (37,109 | )
December 31, 2016 |  |  |
Details about Accumulated other Comprehensive Income (Loss) 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 | $ | 926 |  |  | Net gain on securities transactions
| (370 | ) |  | Tax expense
| 556 |  |  | Net of tax
Employee benefit plans: |  |  |
Amortization of the following 2 |  |  |
Net retirement plan actuarial loss | (1,338 | ) |  | Pension and other employee benefits
Net retirement plan prior service credit | (76 | ) |  | Pension and other employee benefits
Net retirement plan transition liability | 0 |  |  | Pension and other employee benefits
| (1,414 | ) |  | Total before tax
| 565 |  |  | Tax benefit
| (849 | ) |  | Net of tax
December 31, 2015 |  |  |
Details about Accumulated other Comprehensive Income (Loss) 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 | $ | 1,108 |  |  | Net gain on securities transactions
| (443 | ) |  | Tax expense
| 665 |  |  | Net of tax
Employee benefit plans: |  |  |
Amortization of the following 2 |  |  |
Net retirement plan actuarial loss | (2,218 | ) |  | Pension and other employee benefits
Net retirement plan prior service credit | 359 |  |  | Pension and other employee benefits
| (1,859 | ) |  | Total before tax
| 744 |  |  | Tax benefit
| (1,115 | ) |  | Net of tax
1 Amounts in parentheses indicate debits in income statement. 2 The accumulated other comprehensive income components are included in the computation of net periodic benefit cost (See Note 12 - “Employee Benefit Plans”).

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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