Quarterly report pursuant to Section 13 or 15(d)

Receivables and Current Assets - Summary of Major Classes of Other Current Assets (Parenthetical) (Detail)

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Receivables and Current Assets - Summary of Major Classes of Other Current Assets (Parenthetical) (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Subsidiary, Sale of Stock [Line Items]    
Deferred offering costs [1] $ 0 $ 1,459
IPO [Member]    
Subsidiary, Sale of Stock [Line Items]    
Deferred offering costs 13,200  
Total offering costs $ 90,100  
[1] Deferred offering costs consist of legal, accounting, and other fees related to the IPO. Deferred offering costs totaling $13.2 million were offset against the proceeds upon the completion of the IPO in July 2021. Total offering costs related to the IPO were $90.1 million, including these deferred offering costs and the underwriting discount.