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Significant Accounting Policies - Additional Information (Detail) $ in Thousands |  | 12 Months Ended
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Dec. 31, 2020 USD ($) | Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cash and cash equivalents maturity period, maximum |  | 90 days
Short-term lease exception - Lease term | 12 months | 12 months
Accounting Standards Update 470-20 [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Reduction of interest expense per quarter | $ 420 |

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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Cash and cash equivalents criteria maturity period. + References No definition available. + Details
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- Definition Reduction of interest expense per quarter. + References No definition available. + Details
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- Details
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