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Commitments and Contingent Liabilities - Summary of Rental Expense (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating Leases Rent Expense [Abstract]      
Rent expense on all property and equipment rented $ 1,175 $ 1,159 $ 1,112