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Commitments and Contingencies - Summary of Maturities of Sublease Income and Operating Lease Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Sublease Income
2020 (remaining)	$ 2,553
2021	5,201
2022	5,357
2023	5,518
2024	5,684
Thereafter	39,595
Total	63,908
Operating Lease Liabilities
2020 (remaining)	3,443
2021	6,898
2022	6,214
2023	5,353
2024	5,497
Thereafter	36,299
Total	63,704
Present value adjustment	(24,428)
Total	$ 39,276	$ 40,884

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Lessor sublease rentals payments to be received due year five.

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Lessor sublease rentals payments to be received due year four.

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Lessor sublease rentals payments to be received due year three

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Lessor sublease rentals payments to be received due year two.

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Lessor sublease rentals payments to be received remainder of fiscal year.

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth 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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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third 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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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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