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Financial Instruments - Summary of Outstanding Interest Rate Swaps (Detail) - Interest Rate Swap [Member] - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Other Non-current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 50,000,000  
Fair Value $ 240,000  
Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount   $ 25,000,000
Fair Value   $ (126,000)