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Lease commencement date.

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License arrangement contingent consideration percentage.

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Milestone payments.

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Opearting lease rent area.

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Percentage of excess rent paid to landlord.

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Carrying amount of collateralized debt obligations, plus interest-in-kind, with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, after accumulated amortization, of debt discount.

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Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

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Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Net cash outflow or inflow from monetary allowance granted by the landlord to a tenant to entice tenant to move into landlords building which will enable the tenant to prepare the leased premises for tenants occupancy.

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The fair value, as of the date of each statement of financial position presented, of securities that are restricted as collateral under letter of credit agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Commitments and Contingencies - Additional Information (Detail) € in Millions			1 Months Ended		3 Months Ended
	Sep. 17, 2018 USD ($) ft²	Feb. 20, 2018 USD ($)	Jul. 31, 2019 USD ($) ft²	Nov. 30, 2009 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2020 EUR (€)	Mar. 29, 2019 USD ($)	Dec. 31, 2004 EUR (€)
Loss Contingencies [Line Items]
Tenant improvement allowance					$ (908,000)
Sublease income					1,926,000
Cash paid for amounts included in the measurement of operating lease liabilities					1,700,000	$ 700,000
Principal amount including interest paid in kind					$ 180,900,000
Debt maturity date					Dec. 31, 2023
Non-cancelable purchase and other commitments					$ 7,800,000
Symphony Dynamo Holdings LLC
Loss Contingencies [Line Items]
License arrangement contingent consideration percentage				50.00%
License arrangement upfront payment				$ 50,000,000
Milestone payments					0
Deutsche Bank Securities
Loss Contingencies [Line Items]
Letter of credit pledged as security \| €									€ 0.2
Collateralized certificate of deposit \| €							€ 0.2
CRG Servicing LLC
Loss Contingencies [Line Items]
Maximum borrowing capacity		$ 175,000,000.0
Current borrowing capacity		$ 100,000,000.0						$ 75,000,000.0
Principal amount including interest paid in kind					179,600,000
Debt discount					$ 1,300,000
Debt maturity date		Dec. 31, 2023			Dec. 31, 2023
Powell Street Sublease \| Emeryville, California (Premises)
Loss Contingencies [Line Items]
Lease area \| ft²			23,976
Base rent per square feet			$ 3.90
Lease expiration date			Jun. 30, 2022
Option to extend					There is no option to extend the sublease term
Existence of option to extend					false
Horton Street Master Lease
Loss Contingencies [Line Items]
Percentage of excess rent paid to landlord					50.00%		50.00%
Horton Street Master Lease \| Emeryville, California (Premises)
Loss Contingencies [Line Items]
Lease area \| ft²	75,662
Base rent per square feet	$ 4.75
Operations commencement date	Apr. 01, 2019
Tenant improvement allowance	$ 7,900,000
Initial lease term	12 years
Lease option to extend	The Horton Street Master Lease has an initial term of 12 years, following the Commencement Date with an option to extend the lease for two successive five-year terms.
Renewal term of lease	5 years
Horton Street Master Lease \| Emeryville, California (Premises) \| Maximum
Loss Contingencies [Line Items]
Tenant improvement allowance	$ 8,300,000
Horton Street Sublease \| Emeryville, California (Premises)
Loss Contingencies [Line Items]
Lease area \| ft²			75,662
Base rent per square feet			$ 5.50
Lease expiration date			Mar. 31, 2031
Option to extend			The Subtenant has no option to extend the sublease term.
Existence of option to extend			false
Sublease income					$ 1,900,000
Horton Street Sublease \| Emeryville, California (Premises) \| Other Income (Expense)
Loss Contingencies [Line Items]
Sublease income					$ 1,900,000