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Principal Payments on Long-Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
2014 $ 69  
2015 71  
2016 55  
2017     
2018 51,550  
Total indebtedness $ 51,745 $ 52,443