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Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance | [1] |  |  | $ 807,425 |
Other comprehensive income before reclassifications |  | $ 4,317 | $ (35,012) | 8,004 | $ (26,227)
Amounts reclassified from AOCI |  | 540 | 750 | 1,081 | 1,500
Remeasurement adjustment related to the Tax Act | [2] |  |  | (5,325) |
Net current-period other comprehensive income |  | 4,857 | (34,262) | 3,760 | (24,727)
Ending Balance | [1] | 857,658 |  | 857,658 |
Foreign Currency Translation Adjustments [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (104,794) | (61,776) | (108,481) | (70,561)
Other comprehensive income before reclassifications |  | 4,317 | (35,012) | 8,004 | (26,227)
Net current-period other comprehensive income |  | 4,317 | (35,012) | 8,004 | (26,227)
Ending Balance |  | (100,477) | (96,788) | (100,477) | (96,788)
Defined Benefit Pension Plan Adjustments [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (37,865) | (28,340) | (33,083) | (29,093)
Amounts reclassified from AOCI |  | 542 | 752 | 1,085 | 1,505
Remeasurement adjustment related to the Tax Act | [2] |  |  | (5,325) |
Net current-period other comprehensive income |  | 542 | 752 | (4,240) | 1,505
Ending Balance |  | (37,323) | (27,588) | (37,323) | (27,588)
Cash Flow Hedge Adjustments [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | 79 | 88 | 81 | 91
Amounts reclassified from AOCI |  | (2) | (2) | (4) | (5)
Net current-period other comprehensive income |  | (2) | (2) | (4) | (5)
Ending Balance |  | 77 | 86 | 77 | 86
AOCI Attributable to Parent [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (142,580) | (90,028) | (141,483) | (99,563)
Net current-period other comprehensive income |  | 4,857 |  |  |
Ending Balance |  | $ (137,723) | $ (124,290) | $ (137,723) | $ (124,290)
[1] | The 2018 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO.
[2] | Represents reclassification of the stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act (Tax Act) from accumulated other comprehensive income (loss) to retained earnings in accordance with ASU 2018-02. See Note 19 for more details.

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- Definition Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for remeasurement to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act. + References No definition available. + Details
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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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