v2.4.0.8
Fair Value Measurement of Financial Assets and Liabilities - Additional Information (Detail) (USD $)
Mar. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial assets $ 0  
Financial liabilities 0  
Level 3 assets 0 0
Level 3 liabilities $ 0 $ 0