Loans Placed on Nonaccrual, Period of Delinquency

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- Definition

Nonaccrual Loan, Change to Accrual Status, Minimum Period of Repayment Performance

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No definition available.

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- Definition

Number of Supplemental Executive Retirement Plans

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- Definition

Uncollectible Loan Criteria, Period of Unpaid Scheduled Payments

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No definition available.

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- Definition

The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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No definition available.

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Other Comprehensive Income

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses in other comprehensive income.

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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No definition available.

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Percentage employer matches of the employee's percentage contribution matched.

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No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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No definition available.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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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.

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Amount before tax of gain (loss) adjustment to other comprehensive income (loss) resulting from settlement or curtailment of defined benefit pension and other postretirement defined benefit plans.

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-Glossary Settlement of a Pension or Postretirement Benefit Obligation

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The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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No definition available.

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Nature of Operations and Basis of Presentation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 plan business_segments	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Nature of Operations [Line Items]
Number of business segments	1us-gaap_NumberOfOperatingSegments
Amortized cost	$ 142,461,000	$ 151,795,000
Loans placed on nonaccrual, period of delinquency	90 days
Change to accrual status, minimum repayment performance	6 months
Uncollectible loan criteria, period of unpaid scheduled payments	4 months
Allowance of loan losses	20,345,000	26,785,000	29,314,000	39,360,000
Total comprehensive loss	160,588,000us-gaap_ComprehensiveIncomeNetOfTax	(18,765,000)us-gaap_ComprehensiveIncomeNetOfTax	(36,359,000)us-gaap_ComprehensiveIncomeNetOfTax
Deferred income tax related to the components of other comprehensive loss	6,500,000	11,000,000	2,200,000
Number of SERP plans	3
Employer matching contribution percentage	50.00%
Percentage of pay deferred by employee eligible for employer matching contributions	6.00%
Matching and discretionary contributions	600,000	500,000	600,000
Pension Expense	100,000us-gaap_PensionExpense	300,000us-gaap_PensionExpense	400,000us-gaap_PensionExpense
Deferred gain recognized in other comprehensive income	0	0	440,000
Granite Corp. [Member]
Nature of Operations [Line Items]
Allowance of loan losses	3,500,000	5,900,000
Accretable yield	$ 9,600,000	$ 16,000,000	$ 20,500,000
Buildings and Improvements [Member] \| Minimum [Member]
Nature of Operations [Line Items]
Estimated useful lives of premises and equipment	10 years
Buildings and Improvements [Member] \| Maximum [Member]
Nature of Operations [Line Items]
Estimated useful lives of premises and equipment	50 years
Furniture and Equipment [Member] \| Minimum [Member]
Nature of Operations [Line Items]
Estimated useful lives of premises and equipment	3 years
Furniture and Equipment [Member] \| Maximum [Member]
Nature of Operations [Line Items]
Estimated useful lives of premises and equipment	10 years
Core Deposits [Member] \| Minimum [Member]
Nature of Operations [Line Items]
Estimated useful lives of intangible assets	8 years
Core Deposits [Member] \| Maximum [Member]
Nature of Operations [Line Items]
Estimated useful lives of intangible assets	10 years