Net Minimum Future Rental Payments Due under Non-Cancelable Operating Leases (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Property, plant and equipment, operating lease payments
2014	$ 14,655
2015	15,450
2016	16,150
2017	13,142
2018	11,247
Thereafter	38,196
Total	$ 108,840

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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