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Employee Benefit Plans (Actuarial Assumptions) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Compensation and Retirement Disclosure [Abstract]
Discount rate, projected benefit obligations	3.90%	4.30%
Expected return on plan assets	8.00%	8.00%	8.00%
Discount rate, net periodic pension cost	4.30%	5.41%	5.86%

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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