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Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciles the accumulated liability for the benefit obligation
Beginning balance	$ 2,218	$ 2,049	$ 1,897
Benefit expense	327	303	282
Benefit payments	(149)	(134)	(130)
Ending balance	$ 2,396	$ 2,218	$ 2,049

The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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