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Employee Benefit Plans - Summary of Net Amounts Recognized Balance Sheet for the Unfunded Pension Liability (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Compensation And Retirement Disclosure [Abstract]
Current liability		$ (609)
Non-current liability	(2,581)	(1,952)
Total	$ (2,581)	$ (2,561)

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

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

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