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Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Property, Plant and Equipment [Line Items] |  |  |  |  |
Capitalized software development costs, additions | $ 808 | $ 348 | $ 3,212 | $ 1,846 |
Amortization of capitalized software development costs | 459 | $ 377 | 1,404 | $ 1,547 |
Capitalized implementation costs related to cloud computing arrangements | 464 |  | 464 |  |
Cost of assets under finance leases | 595 |  | 595 |  |
Accumulated depreciation of assets under finance leases | 187 |  | 187 |  | $ 28
Prepaid expenses and other current assets |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Capitalized implementation costs related to cloud computing arrangements | 140 |  | 140 |  |
Other long-term assets |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Capitalized implementation costs related to cloud computing arrangements | $ 324 |  | $ 324 |  |

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- Definition Amount of accumulated amortization of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- Definition Amount, before accumulated amortization, of capitalized implementation cost from hosting arrangement that is service contract. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118198657&loc=SL118198666-228104 + Details
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