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Schedule of Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Components Of Deferred Tax Assets And Liabilities [Abstract] |  |
Deferred tax assets, Net operating loss carryforwards | $ 1,690 | $ 874
Deferred tax assets, Tax credits | 4,158 | 2,553
Deferred tax assets, Intangible assets | 1,707 | 1,878
Deferred tax assets, Deferred revenue adjustment | 408 | 423
Deferred tax assets, Accrued Compensation | 6,527 | 6,257
Share-based compensation expense | 11,410 | 14,182
Deferred tax assets, Deferred rent | 0 | 1,330
Deferred tax assets, Digital asset impairment losses | 19,843 | 0
Deferred tax assets, Other | 3,605 | 1,453
Deferred tax assets before valuation allowance | 49,348 | 28,950
Deferred tax assets, Valuation allowance | (1,259) | (2,130)
Deferred tax assets, net of valuation allowance | 48,089 | 26,820
Deferred tax liabilities, Prepaid expenses and other | 1,792 | 1,693
Deferred tax liabilities, Property and equipment | 4,233 | 5,092
Deferred tax liabilities, Debt discount, net of issuance costs | 41,693 | 0
Deferred tax liabilities, Deferred tax on undistributed foreign earnings | 1,741 | 0
Method change | 338 | 652
Total deferred tax liabilities | 49,797 | 7,437
Total net deferred tax (liability) asset | (1,708) |
Total net deferred tax (liability) asset |  | 19,383
Non-current deferred tax assets, net | 6,503 | 19,409
Non-current deferred tax liabilities | $ (8,211) | $ (26)

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