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Derivative Financial Instruments - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Not Designated as Hedging Instrument [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivatives recorded losses during the period $ 698,000    
Interest Rate Caps [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Cash flow hedge ineffectiveness 0 $ 0 $ 0
Reclassification from other accumulated comprehensive income as increase to interest expense $ 780,000