Employee Benefit Plans - Expected Future Contributions and Benefit Payments for the Plan (Detail) (Long-Term Health Care Plan [Member], USD $)
Dec. 31, 2013
Long-Term Health Care Plan [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
2014 $ 53,000
2015 55,000
2016 58,000
2017 60,000
2018 62,000
2019-2023 $ 298,000