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Employee Benefit Plans (Details 6)	9 Months Ended	12 Months Ended
Employee Benefit Plans (Details 6)	Dec. 31, 2011	Dec. 31, 2012
Pension Plan
Discount Rates - Benefit Cost	5.75%	4.40%
Discount Rates - Benefit Obligation	4.40%	4.05%
Expected long-term return on plan assets	6.00%	6.00%
Split-Dollar Insurance Plan
Discount Rates - Benefit Cost	6.00%	6.00%
Discount Rates - Benefit Obligation	6.00%	4.40%
Rate of Compensation Increase - Benefit Obligation	1.50%	1.50%

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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