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Leases - Summary of Information Related to ROU Assets and Related Lease Liabilities (Parenthetical) (Detail) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Lessee Lease Description [Line Items] |  |  |
Operating lease | $ 25,800 | $ 6,444 | $ 30,792
ASU 2016-02 [Member] |  |  |
Lessee Lease Description [Line Items] |  |  |
Operating lease |  |  | $ 5,000

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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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