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Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Inventory Disclosure [Abstract] |  |
Finished goods | $ 42,281 | $ 46,638
Raw materials | 31,686 | 27,321
Total FIFO inventories | 73,967 | 73,959
Reserve to adjust inventories to LIFO value | (19,062) | (18,442)
Total LIFO inventories | $ 54,905 | $ 55,517

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- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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