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Summary of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Accrued contract manufacturing costs	$ 2,557	$ 1,414
Accrued facility-related costs	1,116	2,843
Accrued contract research costs	2,463	2,785
Accrued employee compensation costs	5,222	5,048
Accrued professional fees	2,682	1,235
Others	784	1,276
Total accrued expenses	$ 14,824	$ 14,601

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. 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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- Definition

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).

+ References+ Details