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Other Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accrued Liabilities, Current [Abstract]
Refunds payable	$ 15,946	$ 0
Accrued professional liabilities	15,601	3,189
Total other accrued liabilities	27,657	4,157
Accrued Liabilities, Current	$ 59,204	$ 7,346

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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