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Accrued Expenses and Other Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accrued Expenses and Other Current Liabilities [Line Items]
Salary and related expenses	$ 9,414	$ 10,074
Research and clinical study costs	3,155	5,995
Accrued interest	3,265	4,533
Construction in progress	226	3,878
Other	5,493	1,297
Accrued expenses and other current liabilities	$ 21,553	$ 25,777

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. 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).

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