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Employee Benefit Plans (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Change in benefit obligation:
Benefit obligation at beginning of year	$ 44,144	$ 42,094
Service cost	25	36
Interest cost	1,870	2,068
Actuarial loss	2,780	3,041
Benefits paid	(3,258)	(3,095)
Benefit obligation at end of year	45,561	44,144
Change in plan assets:
Fair value of plan assets at beginning of year	32,420	34,364
Actual return on plan assets	4,307	398
Company contributions	1,598	753
Benefits paid	(3,258)	(3,095)
Fair value of plan assets at end of year	35,067	32,420
Underfunded status of the plans	(10,494)	(11,724)
Balance sheet assets (liabilities):
Other assets	0	0
Accrued liabilities	0	0
Other liabilities	(10,494)	(11,724)
Net amount recognized	(10,494)	(11,724)
Pension plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	45,561	44,144
Accumulated benefit obligation	45,543	44,121
Fair value of plan assets	$ 35,067	$ 32,420
Projected benefit obligation and net periodic pension cost assumptions:
Discount rate	3.80%	4.40%
Rate of compensation increase	4.00%	4.00%
Expected long-term rate of return on plan assets	7.75%	7.75%
Weighted average asset allocation:
Weighted average asset allocation	100.00%	100.00%
Equity securities [Member]
Weighted average asset allocation:
Weighted average asset allocation	58.00%	61.00%
Debt securities [Member]
Weighted average asset allocation:
Weighted average asset allocation	42.00%	39.00%

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation or plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

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The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total.

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The interest rate used to adjust for the time value of money for the plan.

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Expected rate of compensation increases (for pay-related plans).

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An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The increase in the fair value of plan assets from contributions made by the employer.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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