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Commitments and Contingencies - Summary of Maturities of Sublease Income and Operating Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Sublease Income
2022	$ 5,357
2023	5,518
2024	5,684
2025	5,854
2026	6,030
Thereafter	27,712
Total	56,155
Operating Lease Liabilities
2022	6,174
2023	5,634
2024	5,778
2025	5,927
2026	6,080
Thereafter	28,259
Total	57,852
Present value adjustment	(20,959)
Total	$ 36,893	$ 38,036

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Lessor sublease rentals payments to be received due year two.

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Amount of lessee's undiscounted obligation for lease payment for operating lease.

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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