Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Weighted Average Assumptions Used to Determine Benefit Obligation and Net Periodic Benefit Costs (Detail)

v2.4.0.8
Employee Benefit Plans - Weighted Average Assumptions Used to Determine Benefit Obligation and Net Periodic Benefit Costs (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Compensation And Retirement Disclosure [Abstract]    
Discount rate 4.85% 3.85%
Rate of compensation increase 3.00% 3.00%