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Financial Instruments and Fair Value Measurements - Recurring Basis (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Financial liabilities:    
Interest rate swap $ 1,421 $ 1,964
Recurring | Level 1    
Financial liabilities:    
Interest rate swap 0 0
Recurring | Level 2    
Financial liabilities:    
Interest rate swap 1,421 1,964
Recurring | Level 3    
Financial liabilities:    
Interest rate swap $ 0 $ 0