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Accumulated Other Comprehensive Loss ("AOCL") - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | $ 237,054 | $ 231,645 | $ 240,265 | $ 221,656
Reclassification adjustment for write-off of foreign currency translation loss |  | (200) |  |  |
Unrealized gain, net of tax |  | (36) | (10) | (44) | (17)
Ending Balance |  | 234,334 | 232,890 | 234,334 | 232,890
Marketable Investments [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (36) | (137) | (60) | (159)
Foreign currency translation | [1] | 0 | 0 | 0 | 0
Reclassification adjustment for write-off of foreign currency translation loss | [2] | 0 |  | 0 |
Unrealized gain, net of tax |  | 107 | 30 | 131 | 52
Ending Balance |  | 71 | (107) | 71 | (107)
Translation Adjustment [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (6,690) | (5,807) | (4,511) | (7,759)
Foreign currency translation | [1] | 3,910 | (2,435) | 1,731 | (483)
Reclassification adjustment for write-off of foreign currency translation loss | [2] | 232 |  | 232 |
Unrealized gain, net of tax |  | 0 | 0 | 0 | 0
Ending Balance |  | (2,548) | (8,242) | (2,548) | (8,242)
Total AOCL [Member] |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Beginning Balance |  | (6,726) | (5,944) | (4,571) | (7,918)
Foreign currency translation | [1] | 3,910 | (2,435) | 1,731 | (483)
Reclassification adjustment for write-off of foreign currency translation loss | [2] | 232 |  | 232 |
Unrealized gain, net of tax |  | 107 | 30 | 131 | 52
Ending Balance |  | $ (2,477) | $ (8,349) | $ (2,477) | $ (8,349)
[1] | The Company does not record tax provisions or benefits for the net changes in foreign currency translation adjustments as it intends to permanently reinvest undistributed earnings of its foreign subsidiaries.
[2] | The reclassification adjustment for the write-off of a foreign currency translation loss relates to the liquidation of a non-U.S. subsidiary during 2024 and is reported in restructuring costs in the Consolidated Statements of Operations.

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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 15 -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 40 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481724/830-30-40-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-17A Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 16 -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-16 + Details
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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 + Details
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