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Components of Accumulated Other Comprehensive Loss, Net (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of year $ 210,279 $ 197,728 $ 199,468
Amounts reclassified from accumulated other comprehensive loss 14
Balance at end of year 279,493 210,279 197,728
Accumulated translation adjustment:      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of year (27,821) (35,644) (12,961)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (5,906) 7,823 (23,061)
Amounts reclassified from accumulated other comprehensive loss [1]     378
Balance at end of year (33,727) (27,821) (35,644)
Accumulated deferred gains (losses) on cash flow hedges:      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of year 14 [2] (3) [2] (20)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax [2] 161 17 17
Amounts reclassified from accumulated other comprehensive loss [2] (14)    
Balance at end of year [2] 161 14 (3)
Accumulated effect of retirement benefit obligations:      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of year (1,518) (1,352) (1,204)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 373 (228) (202)
Amounts reclassified from accumulated other comprehensive loss [3] 95 62 54
Balance at end of year $ (1,050) $ (1,518) $ (1,352)
[1] Amount is recorded in equity in earnings (losses) on the consolidated statements of operations.
[2] Amounts reclassified are recorded in interest expense on the consolidated statement of operations.
[3] Amount is recorded in selling, general and administrative expenses on the consolidated statements of operations.