Annual report pursuant to Section 13 and 15(d)

Income Tax - Reconciliation of Unrecognized Tax Benefits of Uncertain Tax Positions (Detail)

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Income Tax - Reconciliation of Unrecognized Tax Benefits of Uncertain Tax Positions (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]    
Unrecognized tax benefits, Beginning Balance $ 1,967 $ 1,936
Additions based on tax positions related to the current year 32 55
Additions based on tax positions related to prior years 8  
Deductions based on tax positions related to the current year   (24)
Unrecognized tax benefits, Ending Balance $ 2,007 $ 1,967