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Related Party (Details) (Pepper Hamilton LLP [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Pepper Hamilton LLP [Member]
Related Party Transaction [Line Items]
Net of insurance coverage	$ 210	$ 220
Amount payable to related party	$ 8	$ 285

Amount of receivables to be collected from related parties net of obligations owed to related parties after one year or beyond the normal operating cycle, if longer where one party can exercise control or significant influence over another party including, but not limited to, affiliates, owners or officers and their immediate families and pension trusts.

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