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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended
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Oct. 16, 2009 | Dec. 31, 2013 Segment Office Plans
Summary Of Significant Accounting Policies [Line Items] |  |
Number of operating business segments |  | 2
Number of days on which collection of interest on principal is no longer probable |  | 90 days
Period over which borrower has to demonstrate repayment performance in compliance with restructured terms to take loan out of nonaccrual status |  | 6 months
Original terms of modified loans |  | 6 months
Number of days on which charge-offs unsecured consumer loans are recorded |  | 120 days
Minimum loan amount for credit review process |  | $ 1,000,000
Agreed percentage of losses in loss sharing agreement | 80.00% |
Loss amount with respect to covered assets | 26,700,000 |
Agreed percentage of reimbursement in loss sharing agreement | 95.00% |
Goodwill impairment |  | 0
Number of stock-based employee compensation plans |  | 3
Number of offices providing services, CitizensTrust |  | 3
Assets under administration, CitizensTrust |  | 2,330,000,000
Assets under management, CitizensTrust |  | 1,740,000,000
Commercial loans [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Loss sharing agreement term | 5 years |
Loss recovery provisions term | 8 years |
Single-family residential loans [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Loss sharing agreement term | 10 years |
Loss recovery provisions term | 10 years |
Minimum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Number of days over which principal or interest payments are past due to consider non-covered loans |  | 30 days
Number of days for which principal or interest payments on non-covered loans remain accrual |  | 30 days
Length of modified debt term |  | 3 months
Maximum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Number of days for which principal or interest payments on non-covered loans remain accrual |  | 89 days
Length of modified debt term |  | 12 months
Loss recoveries on covered assets | $ 144,000,000 |

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- Definition Assets under administration. + References No definition available. + Details
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- Definition Pursuant to loss sharing agreement, losses incurred prior to losses covered by FDIC in loss sharing agreement. + References No definition available. + Details
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- Definition Loss recovery provision term. + References No definition available. + Details
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- Definition Loss sharing agreement term. + References No definition available. + Details
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- Definition Represents the minimum threshold for loans that are subject to an annual credit review process, where all aspects of the loan, including the borrower and guarantor(s) undergo review. This review process may result in changes to the internal credit risk rating of the loan. + References No definition available. + Details
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Period Type: | duration

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- Definition Number of days for which principal or interest payment on Non covered loans remain accrual. + References No definition available. + Details
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- Definition Number of days on which charge offs unsecured consumer loan are recorded. + References No definition available. + Details
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- Definition Number of days on which collection of interest on principal is no longer probable. + References No definition available. + Details
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- Definition Number of days over which principal or interest payment are past due to consider non-covered loans. + References No definition available. + Details
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- Definition Number of service provider office. + References No definition available. + Details
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- Definition Number of stock-based compensation plans. + References No definition available. + Details
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- Definition Original term of modified loans. + References No definition available. + Details
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- Definition Percentage of losses reimbursed by the FDIC, and percentage of recoveries of prior losses shared with the FDIC up to threshold stated in loss sharing agreement with the FDIC. + References No definition available. + Details
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- Definition Percentage of losses reimbursed by the FDIC, and percentage of recoveries of prior losses shared with the FDIC over and above threshold stated in loss sharing agreement with the FDIC. + References No definition available. + Details
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- Definition Period over which borrower has to demonstrate repayment performance in compliance with restructured terms to take loan out of nonaccrual status. + References No definition available. + Details
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- Definition Pursuant to loss sharing agreement, losses covered by FDIC. + References No definition available. + Details
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- Details
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- Definition Troubled debt restructuring modified term. + References No definition available. + Details
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- Definition The carrying amount of assets an investment adviser manages on behalf of investors. + References No definition available. + Details
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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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