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Legal Matters (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	$ 15,475
Estimated Litigation Liability	4,293
Estimated litigation liabilty unaccrued	3,391
Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Minimum	25
Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Maximum	$ 31,641

The estimated maximum amount of possible loss from the contingency.

The estimated minimum amount of possible loss from the contingency.