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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2017
Accumulated Other Comprehensive Loss |
Schedule of changes in accumulated other comprehensive loss |
|  |  |  |  | Income |  |  |
|  |  |  |  | Tax |  |  |
|  | Pre-tax |  | Benefit |  | Net of
(dollars in thousands) |  | Amount |  | (Expense) |  | Tax
Accumulated other comprehensive loss at June 30, 2017 |  | $ | (111,823) |  | $ | 44,172 |  | $ | (67,651)
Three months ended September 30, 2017 |  |  |  |  |  |  |  |  |
Investment securities: |  |  |  |  |  |  |  |  |
Unrealized net gains arising during the period |  |  | 212 |  |  | (84) |  |  | 128
Net change in unrealized gains on investment securities |  |  | 212 |  |  | (84) |  |  | 128
Cash flow derivative hedges: |  |  |  |  |  |  |  |  |
Unrealized net gains on cash flow derivative hedges arising during the period |  |  | 675 |  |  | (266) |  |  | 409
Net change in unrealized gains on cash flow derivative hedges |  |  | 675 |  |  | (266) |  |  | 409
Other comprehensive income |  |  | 887 |  |  | (350) |  |  | 537
Accumulated other comprehensive loss at September 30, 2017 |  | $ | (110,936) |  | $ | 43,822 |  | $ | (67,114)
|  |  |  |  | Income |  |  |
|  |  |  |  | Tax |  |  |
|  | Pre-tax |  | Benefit |  | Net of
(dollars in thousands) |  | Amount |  | (Expense) |  | Tax
Accumulated other comprehensive loss at December 31, 2016 |  | $ | (145,472) |  | $ | 57,461 |  | $ | (88,011)
Nine months ended September 30, 2017 |  |  |  |  |  |  |  |  |
Investment securities: |  |  |  |  |  |  |  |  |
Unrealized net gains arising during the period |  |  | 33,005 |  |  | (13,035) |  |  | 19,970
Net change in unrealized gains on investment securities |  |  | 33,005 |  |  | (13,035) |  |  | 19,970
Cash flow derivative hedges: |  |  |  |  |  |  |  |  |
Unrealized net gains on cash flow derivative hedges arising during the period |  |  | 1,531 |  |  | (604) |  |  | 927
Net change in unrealized gains on cash flow derivative hedges |  |  | 1,531 |  |  | (604) |  |  | 927
Other comprehensive income |  |  | 34,536 |  |  | (13,639) |  |  | 20,897
Accumulated other comprehensive loss at September 30, 2017 |  | $ | (110,936) |  | $ | 43,822 |  | $ | (67,114)
|  |  |  |  | Income |  |  |
|  |  |  |  | Tax |  |  |
|  | Pre-tax |  | Benefit |  | Net of
(dollars in thousands) |  | Amount |  | (Expense) |  | Tax
Accumulated other comprehensive loss at June 30, 2016 |  | $ | (8,644) |  | $ | 3,417 |  | $ | (5,227)
Three months ended September 30, 2016 |  |  |  |  |  |  |  |  |
Investment securities: |  |  |  |  |  |  |  |  |
Unrealized net losses arising during the period |  |  | (9,925) |  |  | 3,920 |  |  | (6,005)
Reclassification of net gains to net income: |  |  |  |  |  |  |  |  |
Investment securities gains, net |  |  | (30) |  |  | 12 |  |  | (18)
Net change in unrealized losses on investment securities |  |  | (9,955) |  |  | 3,932 |  |  | (6,023)
Cash flow derivative hedges: |  |  |  |  |  |  |  |  |
Unrealized net gains on cash flow derivative hedges arising during the period |  |  | 1,545 |  |  | (610) |  |  | 935
Net change in unrealized gains on cash flow derivative hedges |  |  | 1,545 |  |  | (610) |  |  | 935
Other comprehensive loss |  |  | (8,410) |  |  | 3,322 |  |  | (5,088)
Accumulated other comprehensive loss at September 30, 2016 |  | $ | (17,054) |  | $ | 6,739 |  | $ | (10,315)
|  |  |  |  | Income |  |  |
|  |  |  |  | Tax |  |  |
|  | Pre-tax |  | Benefit |  | Net of
(dollars in thousands) |  | Amount |  | (Expense) |  | Tax
Accumulated other comprehensive loss at December 31, 2015 |  | $ | (84,722) |  | $ | 33,463 |  | $ | (51,259)
Nine months ended September 30, 2016 |  |  |  |  |  |  |  |  |
Pension and other benefits: |  |  |  |  |  |  |  |  |
Change due to Reorganization Transactions |  |  | (78) |  |  | 32 |  |  | (46)
Net change in pension and other benefits |  |  | (78) |  |  | 32 |  |  | (46)
Investment securities: |  |  |  |  |  |  |  |  |
Unrealized net gains arising during the period |  |  | 92,590 |  |  | (36,573) |  |  | 56,017
Reclassification of net gains to net income: |  |  |  |  |  |  |  |  |
Investment securities gains, net |  |  | (25,761) |  |  | 10,176 |  |  | (15,585)
Net change in unrealized gains on investment securities |  |  | 66,829 |  |  | (26,397) |  |  | 40,432
Cash flow derivative hedges: |  |  |  |  |  |  |  |  |
Unrealized net gains on cash flow derivative hedges arising during the period |  |  | 917 |  |  | (359) |  |  | 558
Net change in unrealized gains on cash flow derivative hedges |  |  | 917 |  |  | (359) |  |  | 558
Other comprehensive income |  |  | 67,668 |  |  | (26,724) |  |  | 40,944
Accumulated other comprehensive loss at September 30, 2016 |  | $ | (17,054) |  | $ | 6,739 |  | $ | (10,315)
Summary of changes in accumulated other comprehensive loss, net of tax |
|  |  |  |  |  |  |  |  |  | Total
|  | Pensions |  | Unrealized |  | Unrealized |  | Accumulated
|  | and |  | Gains (Losses) |  | Gains on |  | Other
|  | Other |  | on Investment |  | Cash Flow |  | Comprehensive
(dollars in thousands) |  | Benefits |  | Securities |  | Derivative Hedges |  | Loss
Three Months Ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (30,237) |  | $ | (40,116) |  | $ | 2,702 |  | $ | (67,651)
Other comprehensive income |  |  | — |  |  | 128 |  |  | 409 |  |  | 537
Balance at end of period |  | $ | (30,237) |  | $ | (39,988) |  | $ | 3,111 |  | $ | (67,114)
Nine Months Ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (30,237) |  | $ | (59,958) |  | $ | 2,184 |  | $ | (88,011)
Other comprehensive income |  |  | — |  |  | 19,970 |  |  | 927 |  |  | 20,897
Balance at end of period |  | $ | (30,237) |  | $ | (39,988) |  | $ | 3,111 |  | $ | (67,114)
Three Months Ended September 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (26,929) |  | $ | 21,349 |  | $ | 353 |  | $ | (5,227)
Other comprehensive (loss) income |  |  | — |  |  | (6,023) |  |  | 935 |  |  | (5,088)
Balance at end of period |  | $ | (26,929) |  | $ | 15,326 |  | $ | 1,288 |  | $ | (10,315)
Nine Months Ended September 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (26,883) |  | $ | (25,106) |  | $ | 730 |  | $ | (51,259)
Other comprehensive (loss) income |  |  | (46) |  |  | 40,432 |  |  | 558 |  |  | 40,944
Balance at end of period |  | $ | (26,929) |  | $ | 15,326 |  | $ | 1,288 |  | $ | (10,315)

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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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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e526-108580 + Details
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