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Balance Sheet Components - Schedule of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued Liabilities Current [Abstract]
Preclinical and clinical trial accruals	$ 16,704	$ 16,279
API product price adjustment	0	36,324
Payroll and related accruals	11,899	19,784
Property taxes and other	4,033	2,044
Professional services	4,608	4,842
Other	5,065	4,543
Total accrued liabilities	$ 42,309	$ 83,816

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- Definition

Accrued active pharmaceutical ingredient product price adjustment current.

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- Definition

Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to pre-clinical and clinical trial activities, including those performed by third parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Property taxes and other current.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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