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Benefit Plans (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Amounts Expected to be Recognized in Net Periodic Cost in the Coming Year
(Gain)/loss recognition	$ 181	$ 206
Prior service cost recognition	0	0
Net initial obligations/(asset) recognition	0	0
Weighted-Average Assumptions Used to Determine Net Periodic Cost for Fiscal Periods Ending as of December 31
Discount rate	4.50%	5.50%
Expected asset return	7.00%	7.00%
Salary Scale	0	0
Plan Assets

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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- Definition

Before tax amount, net of reclassification adjustments, of the benefit improvement costs resulting from a plan amendment that occurred that has not been recognized in net periodic benefit cost.

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- Definition

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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