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Summary of Significant Accounting Policies (Detail) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 21, 2020 | Feb. 09, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Accounting Policies [Line Items] |  |  |  |  |  |
Unrecognized tax benefits |  | $ 1,671,000 | $ 1,671,000 | $ 1,671,000 | $ 1,275,000 | $ 639,000
CIK_0001819810_Genesis Park Acquisition Corp [Member] |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Cash | $ 557,200 | 1,295,380 |  |  |  |
Unrecognized tax benefits | 0 | 0 |  |  |  |
Accrued interest and penalties | 0 | 0 |  |  |  |
Cash subject to federal depository insurance | $ 250,000 | $ 250,000 |  |  |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=120406818&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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