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Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2015
Equity [Abstract] |
Summary of Components of OCI | The tables below provide a summary of the components of OCI for the periods presented.
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | Before-tax |  |  | Tax effect |  |  | After-tax |  |  | Before-tax |  |  | Tax effect |  |  | After-tax |  |  | Before-tax |  |  | Tax effect |  |  | After-tax |
|  | (Dollars in thousands) |
Investment securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  | $ | (22,667 | ) |  | $ | (9,519 | ) |  | $ | (13,148 | ) |  | $ | 69,661 |  |  | $ | 29,256 |  |  | $ | 40,405 |  |  | $ | (88,562 | ) |  | $ | (37,196 | ) |  | $ | (51,366 | )
Cumulative-effect adjustment for unrealized gains on securities transferred from available-for-sale to held-to-maturity |  |  | 6,690 |  |  |  | 2,808 |  |  |  | 3,882 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity |  |  | (1,573 | ) |  |  | (660 | ) |  |  | (913 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net realized loss (gain) reclassified into earnings |  |  | 22 |  |  |  | 9 |  |  |  | 13 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,094 | ) |  |  | (879 | ) |  |  | (1,215 | )
Net change |  | $ | (17,528 | ) |  | $ | (7,362 | ) |  | $ | (10,166 | ) |  | $ | 69,661 |  |  | $ | 29,256 |  |  | $ | 40,405 |  |  | $ | (90,656 | ) |  | $ | (38,075 | ) |  | $ | (52,581 | )
Summary of Change in Accumulated Other Comprehensive Income | The following table provides a summary of the change in accumulated other comprehensive income for the periods presented.
|  | Investment Securities |
|  | (Dollars in thousands) |
Balance, January 1, 2014 |  | $ | (9,330 | )
Net change in fair value recorded in accumulated OCI |  |  | 40,405 |
Net realized loss reclassified into earnings |  |  | — |
Balance, December 31, 2014 |  | $ | 31,075 |
Net change in fair value recorded in accumulated OCI |  |  | (10,179 | )
Net realized loss reclassified into earnings |  |  | 13 |
Balance, December 31, 2015 |  | $ | 20,909 |

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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=36458714&loc=SL7669686-108580 + Details
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