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Employee Benefit Plans - Defined Benefit Plans (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Non-current assets	$ 27,584	$ 7,459
Non-current (liabilities)	(286)	(315)
Total	$ 27,298	$ 7,144

This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

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