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Components of Accumulated Other Comprehensive Loss, Net (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Balance at beginning of period     $ 197,728    
Balance at end of period $ 208,099   208,099    
Total accumulated other comprehensive loss at end of period (29,408) $ (20,920) (29,408) $ (20,920) $ (36,999)
Accumulated translation adjustment:          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Balance at beginning of period (30,356) (17,716) (35,644) (12,961)  
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 2,246 (2,007) 7,534 (7,140)  
Amounts reclassified from accumulated other comprehensive loss [1]       378  
Balance at end of period (28,110) (19,723) (28,110) (19,723)  
Accumulated deferred gains (losses) on cash flow hedges:          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Balance at beginning of period 11 (67) (3) (20)  
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (4) 33 10 (14)  
Balance at end of period 7 (34) 7 (34)  
Accumulated effect of retirement benefit obligations:          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Balance at beginning of period (1,321) (1,177) (1,352) (1,204)  
Amounts reclassified from accumulated other comprehensive loss [2] 16 14 47 41  
Balance at end of period $ (1,305) $ (1,163) $ (1,305) $ (1,163)  
[1] Amount is recorded in equity in earnings (losses) on the condensed consolidated statements of operations.
[2] Amounts are recorded in selling, general and administrative expense on the condensed consolidated statements of operations.