v3.21.2

Summary of Significant Accounting Policies - Summary of Right-of-Use Assets And Lease Liabilities Associated With Operating Leases Included In Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Accounting Policies [Abstract] |  |
Right-of-use assets | $ 3,250 | $ 3,075
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:PrepaidExpensesAndOtherCurrentAssetsMember | us-gaap:PrepaidExpensesAndOtherCurrentAssetsMember
Lease liabilities | $ 2,714 | $ 2,659
Operating Lease, Liability, Statement of Financial Position [Extensible List] | Accounts Payable and Other Liabilities | Accounts Payable and Other Liabilities

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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