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Other Non-Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Accrued Liabilities [Line Items]
Defined benefit pension obligations, net (note 9)	$ 3,536	$ 4,720
Other non-current liabilities	3,384	2,672
Other liabilities, noncurrent	11,198	14,312
Personnel Related
Schedule of Accrued Liabilities [Line Items]
Other liabilities, noncurrent	$ 4,278	$ 6,920

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This represents the noncurrent liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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The noncurrent portion (due beyond one year or one operating cycle) of other accrued expenses (expenses incurred at the end of the reporting period but not yet paid) not otherwise defined in the taxonomy.

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Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

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