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Borrowings - Schedule of Maturities of Our Borrowings (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Debt Disclosure [Abstract] |  |
2021 | $ 4,061 |
2022 | 9,145 |
2023 | 25,000 |
2024 | 70,142 |
Thereafter | 230,000 |
Total principal payments | 338,348 |
Unamortized discount | (594) |
Unamortized debt issuance costs | (7,167) |
Total debt — net carrying amount | $ 330,587 | $ 122,235

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