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Components of Accumulated Other Comprehensive Loss, Net (Detail) - USD ($) $ in Thousands | 12 Months Ended
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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.

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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581 + Details
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