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Accumulated Other Comprehensive Income (Loss) | 6 Months Ended
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Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Loss | ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME Accumulated other comprehensive loss included the following as of June 30, 2018 and December 31, 2017:
| June 30, 2018 |  | December 31, 2017
(Dollars in thousands) | Accumulated other comprehensive loss |  | Deferred tax benefit |  | Accumulated other comprehensive loss, net of tax |  | Accumulated other comprehensive loss |  | Deferred tax benefit |  | Accumulated other comprehensive loss, net of tax
Unrealized losses on securities available for sale | $ | (74,671 | ) |  | $ | (17,175 | ) |  | $ | (57,496 | ) |  | $ | (48,834 | ) |  | $ | (17,889 | ) |  | $ | (30,945 | )
Unrealized losses on securities available for sale transferred to held to maturity | (105,034 | ) |  | (24,158 | ) |  | (80,876 | ) |  | — |  |  | — |  |  | — |
Funded status of defined benefit plans | (138,008 | ) |  | (31,742 | ) |  | (106,266 | ) |  | (144,999 | ) |  | (53,650 | ) |  | (91,349 | )
Total | $ | (317,713 | ) |  | $ | (73,075 | ) |  | $ | (244,638 | ) |  | $ | (193,833 | ) |  | $ | (71,539 | ) |  | $ | (122,294 | )
The following table highlights changes in accumulated other comprehensive (loss) income by component for the three and six months ended June 30, 2018 and June 30, 2017:
| Three months ended June 30, 2018
(Dollars in thousands) | Unrealized (losses) gains on securities available for sale 1 |  | Unrealized losses on securities available for sale transferred to held to maturity 1 |  | Defined benefit pension items 1 |  | Total
Beginning balance | $ | (121,243 | ) |  | $ | — |  |  | $ | (109,080 | ) |  | $ | (230,323 | )
Cumulative effect adjustments | — |  |  | — |  |  | — |  |  | — |
Other comprehensive loss before reclassifications | 63,747 |  |  | (84,321 | ) |  | — |  |  | (20,574 | )
Amounts reclassified from accumulated other comprehensive (loss) income | — |  |  | 3,445 |  |  | 2,814 |  |  | 6,259 |
Net current period other comprehensive (loss) income | 63,747 |  |  | (80,876 | ) |  | 2,814 |  |  | (14,315 | )
Ending balance | $ | (57,496 | ) |  | $ | (80,876 | ) |  | $ | (106,266 | ) |  | $ | (244,638 | )
| Three months ended June 30, 2017
| Unrealized (losses) gains on securities available for sale 1 |  | Unrealized losses on securities available for sale transferred to held to maturity 1 |  | Defined benefit pension items 1 |  | Total
Beginning balance | $ | (23,183 | ) |  | $ | — |  |  | $ | (87,758 | ) |  | $ | (110,941 | )
Other comprehensive income before reclassifications | 8,646 |  |  | — |  |  | — |  |  | 8,646 |
Amounts reclassified from accumulated other comprehensive (loss) income | (2,111 | ) |  | — |  |  | 1,563 |  |  | (548 | )
Net current period other comprehensive income | 6,535 |  |  | — |  |  | 1,563 |  |  | 8,098 |
Ending balance | $ | (16,648 | ) |  | $ | — |  |  | $ | (86,195 | ) |  | $ | (102,843 | )
| Six months ended June 30, 2018
| Unrealized (losses) gains on securities 1 |  | Unrealized losses on securities available for sale transferred to held to maturity 1 |  | Defined benefit pension items 1 |  | Total
Beginning balance | $ | (30,945 | ) |  | $ | — |  |  | $ | (91,349 | ) |  | $ | (122,294 | )
Cumulative effect adjustments | (29,752 | ) |  | — |  |  | (20,300 | ) |  | (50,052 | )
Other comprehensive income before reclassifications | 3,201 |  |  | (84,321 | ) |  | — |  |  | (81,120 | )
Amounts reclassified from accumulated other comprehensive (loss) income | — |  |  | 3,445 |  |  | 5,383 |  |  | 8,828 |
Net current period other comprehensive income | 3,201 |  |  | (80,876 | ) |  | 5,383 |  |  | (72,292 | )
Ending balance | $ | (57,496 | ) |  | $ | (80,876 | ) |  | $ | (106,266 | ) |  | $ | (244,638 | )
| Six months ended June 30, 2017
| Unrealized (losses) gains on securities 1 |  | Unrealized losses on securities available for sale transferred to held to maturity 1 |  | Defined benefit pension items 1 |  | Total
Beginning balance | $ | (45,875 | ) |  | $ | — |  |  | $ | (89,317 | ) |  | $ | (135,192 | )
Other comprehensive income before reclassifications | 31,323 |  |  | — |  |  | — |  |  | 31,323 |
Amounts reclassified from accumulated other comprehensive (loss) income | (2,096 | ) |  | — |  |  | 3,122 |  |  | 1,026 |
Net current period other comprehensive income | 29,227 |  |  | — |  |  | 3,122 |  |  | 32,349 |
Ending balance | $ | (16,648 | ) |  | $ | — |  |  | $ | (86,195 | ) |  | $ | (102,843 | )
1 All amounts are net of tax. Amounts in parentheses indicate debits. The following table presents the amounts reclassified from accumulated other comprehensive income (loss) and the line item affected in the statement where net income is presented for the three and six months ended June 30, 2018 and June 30, 2017:
(Dollars in thousands) |  | Three months ended June 30, 2018
Details about accumulated other comprehensive income (loss) |  | Amounts reclassified from accumulated other comprehensive income (loss)1 |  | Affected line item in the statement where net income is presented
Amortization of unrealized losses on securities available for sale transferred to held to maturity |  | $ | (4,473 | ) |  | Other
|  | 1,028 |  |  | Income taxes
|  | $ | (3,445 | ) |  | Net Income
Amortization of defined benefit pension items |  |  |  |
Prior service costs |  | $ | (20 | ) |  | Salaries and wages
Actuarial losses |  | (3,634 | ) |  | Other
|  | (3,654 | ) |  | Income before income taxes
|  | 840 |  |  | Income taxes
|  | $ | (2,814 | ) |  | Net income
Total reclassifications for the period |  | $ | (6,259 | ) |  |
|  | Three months ended June 30, 2017
Details about accumulated other comprehensive income (loss) |  | Amounts reclassified from accumulated other comprehensive income (loss)1 |  | Affected line item in the statement where net income is presented
Unrealized gains and losses on securities available for sale |  | $ | 3,351 |  |  | Securities gains, net
|  | (1,240 | ) |  | Income taxes
|  | $ | 2,111 |  |  | Net income
Amortization of defined benefit pension items |  |  |  |
Prior service costs |  | $ | (53 | ) |  | Salaries and wages
Actuarial losses |  | (2,407 | ) |  | Other
|  | (2,460 | ) |  | Income before income taxes
|  | 897 |  |  | Income taxes
|  | $ | (1,563 | ) |  | Net income
Total reclassifications for the period |  | $ | 548 |  |  |
|  | Six months ended June 30, 2018
Details about accumulated other comprehensive income (loss) |  | Amount reclassified from accumulated other comprehensive income (loss)1 |  | Affected line item in the statement where net income is presented
Amortization of unrealized losses on securities available for sale transferred to held to maturity |  | $ | (4,473 | ) |  | Other
|  | 1,028 |  |  | Income taxes
|  | $ | (3,445 | ) |  | Net income
Amortization of defined benefit pension items |  |  |  |
Prior service costs |  | $ | (40 | ) |  | Salaries and wages
Actuarial losses |  | (6,951 | ) |  | Other
|  | (6,991 | ) |  | Employee benefits
|  | 1,608 |  |  | Income taxes
|  | $ | (5,383 | ) |  | Net income
Total reclassifications for the period |  | $ | (8,828 | ) |  |
|  | Six months ended June 30, 2017
Details about accumulated other comprehensive income (loss) |  | Amount reclassified from accumulated other comprehensive income (loss)1 |  | Affected line item in the statement where net income is presented
Unrealized gains and losses on securities available for sale |  | $ | 3,327 |  |  | Securities gains, net
|  | (1,231 | ) |  | Income taxes
|  | $ | 2,096 |  |  | Net income
Amortization of defined benefit pension items |  |  |  |
Prior service costs |  | $ | (105 | ) |  | Salaries and wages
Actuarial losses |  | (4,855 | ) |  | Other
|  | (4,960 | ) |  | Employee benefits
|  | 1,838 |  |  | Income taxes
|  | $ | (3,122 | ) |  | Net income
Total reclassifications for the period |  | $ | (1,026 | ) |  |
1 Amounts in parentheses indicate debits to profit/loss.

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- References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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