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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2018
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule Of Changes In Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax | The following tables provide changes in the balances of each component of accumulated other comprehensive income, net of tax, for the periods ended December 31, 2018, 2017 and 2016:
2018 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at January 1 | $ | 16,003 |  |  | $ | (58 | ) |  | $ | 15,945 |
Cumulative-effect adjustment for adoption of new accounting standards | (13,616 | ) |  | (11 | ) |  | (13,627 | )
Other comprehensive loss before reclassifications | (1,499 | ) |  | 37 |  |  | (1,462 | )
Amounts reclassified from accumulated other comprehensive income | 93 |  |  | — |  |  | 93 |
Net current-period other comprehensive loss | (1,406 | ) |  | 37 |  |  | (1,369 | )
Ending balance | $ | 981 |  |  | $ | (32 | ) |  | $ | 949 |
2017 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at January 1 | $ | 11,871 |  |  | $ | (110 | ) |  | $ | 11,761 |
Other comprehensive income before reclassifications | 4,922 |  |  | 46 |  |  | 4,968 |
Amounts reclassified from accumulated other comprehensive income | (790 | ) |  | 6 |  |  | (784 | )
Net current-period other comprehensive income | 4,132 |  |  | 52 |  |  | 4,184 |
Ending balance | $ | 16,003 |  |  | $ | (58 | ) |  | $ | 15,945 |
2016 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at January 1 | $ | 11,598 |  |  | $ | (115 | ) |  | $ | 11,483 |
Other comprehensive income before reclassifications | 758 |  |  | — |  |  | 758 |
Amounts reclassified from accumulated other comprehensive income | (485 | ) |  | 5 |  |  | (480 | )
Net current-period other comprehensive income | 273 |  |  | 5 |  |  | 278 |
Ending balance | $ | 11,871 |  |  | $ | (110 | ) |  | $ | 11,761 |
Schedule Of Reclassification Out Of Accumulated Other Comprehensive Income | The following tables provide significant amounts reclassified out of each component of accumulated other comprehensive income for the periods ended December 31, 2018, 2017 and 2016:
2018 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized loss on investment | $ | (117 | ) |  |
Other-than-temporary impairments | — |  |  |
Total | $ | (117 | ) |  | Net realized (loss) gain on investments
Tax | 24 |  |  | Provision for Income Taxes
Net of Tax | $ | (93 | ) |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | — |  |  |
Total | $ | — |  |  | (a)
Tax | — |  |  | Provision for Income Taxes
Net of Tax | $ | — |  |  |
Reclassifications for the period | $ | (93 | ) |  |
2017 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investment | $ | 1,227 |  |  |
Other-than-temporary impairments | (26 | ) |  |
Total | $ | 1,201 |  |  | Net realized (loss) gain on investments
Tax | (411 | ) |  | Provision for Income Taxes
Net of Tax | $ | 790 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (9 | ) |  |
Total | $ | (9 | ) |  | (a)
Tax | 3 |  |  | Provision for Income Taxes
Net of Tax | $ | (6 | ) |  |
Reclassifications for the period | $ | 784 |  |  |
2016 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investment | $ | 973 |  |  |
Other-than-temporary impairments | (234 | ) |  |
Total | $ | 739 |  |  | Net realized (loss) gain on investments
Tax | (254 | ) |  | Provision for Income Taxes
Net of Tax | $ | 485 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (9 | ) |  |
Total | $ | (9 | ) |  | (a)
Tax | 4 |  |  | Provision for Income Taxes
Net of Tax | $ | (5 | ) |  |
Reclassifications for the period | $ | 480 |  |  |
(a) | These accumulated other comprehensive income components are not reclassified to net income in their entirety in the same reporting period. The amounts are presented within salaries, employee benefits and payroll taxes on the Consolidated Statements of Income as amortized. Amortization related to postretirement benefit plans is included in the computation of net periodic pension costs, as discussed in Note 10.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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