Quarterly report pursuant to Section 13 or 15(d)

Short-Term And Long-Term Debt - Summary Of Carrying Values And Estimated Fair Values Of Debt Instruments (Detail)

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Short-Term And Long-Term Debt - Summary Of Carrying Values And Estimated Fair Values Of Debt Instruments (Detail) - Backstop Agreement [Member] - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Principal balances outstanding $ 120,000 $ 120,000
Net of unamortized debt issuance costs 2,744 2,458
Net of unamortized equity component costs 0 15,517
Net carrying amount [1] $ 117,256 $ 102,025
[1] Due to the adoption of ASU 2020-06 the net carrying amount of the Backstop notes changed. Refer to “Note 2-Summary of Significant Accounting policies – Recently Adopted Accounting Pronouncements” to the condensed consolidated financial statements for a summary of the effects of the adoption of ASU 2020-06.