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Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Allowance for Doubtful Accounts |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | $ 3,297 | $ 2,300 | $ 1,263
Additions Charged to Costs and Expenses | 649 | 1,002 | 1,035
Foreign exchange impact | (8) | (5) | 2
Balance at End of Period | 3,938 | 3,297 | 2,300
Inventory Reserve |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 2,868 | 2,130 | 1,989
Additions Charged to Costs and Expenses | 948 | 1,120 | 573
Deductions | (1,141) | (382) | (432)
Balance at End of Period | 2,675 | $ 2,868 | $ 2,130
Deferred Tax Asset Valuation Allowance |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Additions Charged to Costs and Expenses | 3,304 |  |
Additions Charged to Other Comprehensive Loss | 958 |  |
Balance at End of Period | $ 4,262 |  |

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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