Debt instrument amortization period.

No definition available.

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- Definition

Debt Instrument, Covenant Terms, Unrestricted Cash

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No definition available.

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- Definition

Debt instrument repayment period after interest only period.

+ References

No definition available.

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- Definition

Line of credit facility non milestone based minimum advances available.

+ References

No definition available.

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- Definition

Line Of Credit Facility, Prepayment Fee, Amount

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No definition available.

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- Definition

Line Of Credit Facility, Termination Fees, Amount

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No definition available.

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- Definition

Percentage of maintained cash and investment property in accounts of aggregate cash of parent and subsidiaries.

+ References

No definition available.

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- Definition

Percentage of outstanding principal balance of term loan required to be maintained.

+ References

No definition available.

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- Definition

Percentage of prepayment fee.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount of assets pledged to secure a debt instrument.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

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.

+ References

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Notes Payable - Additional Information (Detail) - USD ($)				12 Months Ended
	Nov. 04, 2019	Jul. 10, 2019	May 23, 2018	Dec. 31, 2019	Apr. 30, 2019	Oct. 23, 2018
Debt Instrument [Line Items]
Minimum advances available under facility					$ 5,000,000.0
Debt covenant, unrestricted cash				$ 7,000,000.0
Termination fees	$ 16,400,000
Prepayment fee	$ 1,400,000
Notes Payable \| Interest Expense
Debt Instrument [Line Items]
Loss on extinguishment of notes payable				$ 1,000,000.0
Hercules Loan Agreement
Debt Instrument [Line Items]
Reduction of indebtedness		$ 15,000,000.0
Loan amount outstanding		$ 30,000,000.0
Hercules Loan Agreement \| Term Loan
Debt Instrument [Line Items]
Term loans aggregate principal amount			$ 40,000,000.0
Debt instrument repayment period after interest only period			18 months
Debt instrument amortization period			18 months
Debt issuance costs recorded as debt discount			$ 1,100,000
Debt discount liability, facility fee recorded as debt discount			$ 400,000
Prepayment fee percentage			6.95%
Percentage outstanding principal balance of term loans required to be maintained			120.00%
Percentage of maintained cash and investment property in accounts of aggregate cash of parent and subsidiaries			80.00%
Amount of investment to any future equity offering			$ 2,000,000.0
Hercules Loan Agreement \| Term Loan \| Fixed Rate and Prime Rate
Debt Instrument [Line Items]
Term loans interest rate			5.00%
Hercules Loan Agreement \| Term Loan \| Maximum
Debt Instrument [Line Items]
Term loans fixed interest rate			10.05%
Hercules Loan Agreement \| Term Loan \| First Year After Initial Funding Date
Debt Instrument [Line Items]
Prepayment fee percentage			3.00%
Hercules Loan Agreement \| Term Loan \| Second Year After Initial Funding Date
Debt Instrument [Line Items]
Prepayment fee percentage			2.00%
Hercules Loan Agreement \| Term Loan \| Second Year After Initial Funding Date And Thereafter
Debt Instrument [Line Items]
Prepayment fee percentage			1.00%
Hercules Loan Agreement \| Term Loan \| First Tranche
Debt Instrument [Line Items]
Term loans aggregate principal amount			$ 20,000,000.0
Hercules Loan Agreement \| Term Loan \| Tranche Two
Debt Instrument [Line Items]
Term loans aggregate principal amount						$ 10,000,000.0
Hercules Loan Agreement \| Term Loan \| Tranche Four
Debt Instrument [Line Items]
Term loans aggregate principal amount					$ 20,000,000.0