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Accounting for Investments in Qualified Affordable Housing Projects - Summary of Change in Accounting Principle on Balance Sheets (Detail) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
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Dec. 31, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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| Assets | ||||
| Cash and cash equivalents | $ 182,054us-gaap_CashCashEquivalentsAndFederalFundsSold | $ 158,320us-gaap_CashCashEquivalentsAndFederalFundsSold | $ 204,384us-gaap_CashCashEquivalentsAndFederalFundsSold | $ 179,357us-gaap_CashCashEquivalentsAndFederalFundsSold |
| Available-for-Sale, Estimated Fair Value | 858,064us-gaap_AvailableForSaleSecurities | 1,060,717us-gaap_AvailableForSaleSecurities | 520,990us-gaap_AvailableForSaleSecurities | |
| Loans receivable | 2,767,080us-gaap_LoansAndLeasesReceivableNetReportedAmount | 2,735,832us-gaap_LoansAndLeasesReceivableNetReportedAmount | 2,221,520us-gaap_LoansAndLeasesReceivableNetReportedAmount | |
| Income tax assets | 86,478us-gaap_IncomeTaxReceivable | 84,371us-gaap_IncomeTaxReceivable | 53,500us-gaap_IncomeTaxReceivable | |
| Other assets | 95,364us-gaap_OtherAssetsMiscellaneous | |||
| Total assets | 4,084,015us-gaap_Assets | 4,232,443us-gaap_Assets | 3,095,758us-gaap_Assets | |
| Liabilities and Stockholders' Equity | ||||
| Liabilities | 3,616,545us-gaap_Liabilities | 3,779,056us-gaap_Liabilities | 2,682,247us-gaap_Liabilities | |
| Stockholders' equity | 467,470us-gaap_StockholdersEquity | 453,387us-gaap_StockholdersEquity | 413,511us-gaap_StockholdersEquity | 400,077us-gaap_StockholdersEquity |
| Total liabilities and stockholders' equity | 4,084,015us-gaap_LiabilitiesAndStockholdersEquity | 4,232,443us-gaap_LiabilitiesAndStockholdersEquity | 3,095,758us-gaap_LiabilitiesAndStockholdersEquity | |
| As Previously Reported [Member] | ||||
| Assets | ||||
| Cash and cash equivalents |
204,384us-gaap_CashCashEquivalentsAndFederalFundsSold / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
179,357us-gaap_CashCashEquivalentsAndFederalFundsSold / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Available-for-Sale, Estimated Fair Value |
520,990us-gaap_AvailableForSaleSecurities / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Loans receivable |
2,221,520us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Income tax assets |
53,227us-gaap_IncomeTaxReceivable / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Other assets |
96,841us-gaap_OtherAssetsMiscellaneous / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Total assets |
3,096,962us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Liabilities and Stockholders' Equity | ||||
| Liabilities |
2,682,247us-gaap_Liabilities / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Stockholders' equity |
414,715us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Total liabilities and stockholders' equity |
3,096,962us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember |
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| Effect of Change in Accounting Principle [Member] | ||||
| Assets | ||||
| Income tax assets |
273us-gaap_IncomeTaxReceivable / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |
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| Other assets |
(1,477)us-gaap_OtherAssetsMiscellaneous / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |
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| Total assets |
(1,204)us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |
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| Liabilities and Stockholders' Equity | ||||
| Stockholders' equity |
(1,204)us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |
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| Total liabilities and stockholders' equity |
$ (1,204)us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of other miscellaneous assets. No definition available.
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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