Debt instrument initial debt discount before inception.

No definition available.

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- Definition

Warrant liability and direct fees.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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Balance Type:	credit
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Balance Type:	na
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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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.

+ Details

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

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- Definition

Maturity date of long-term debt, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

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-SubTopic 10
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Balance Type:	debit
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- Definition

The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

+ References

+ Details

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- Definition

Fair value portion of warrants not settleable in cash classified as equity.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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Debt - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions			6 Months Ended
	Jun. 12, 2019	May 20, 2019	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Convertible Notes Payable
Debt Instrument [Line Items]
Debt instrument, face amount		$ 37.0
Debt instrument, interest rate		13.00%
Long-term debt, date date		Dec. 31, 2019
Debt conversion converted instrument amount	$ 23.0
Series D Convertible Preferred Stock \| 2019 Convertible Notes
Debt Instrument [Line Items]
Proceeds from issuance of convertible preferred stock, net of issuance costs	$ 37.0
Two Thousand And Nineteen Credit Agreement
Debt Instrument [Line Items]
Debt instrument, fee amount			$ 4.6		$ 4.6
Warrants liability fair value			$ 0.9
Class of warrants number of securities called by the warrants or rights			419,992
Warrant liability and direct fees			$ 1.2
Two Thousand And Nineteen Credit Agreement \| Series C Convertible Preferred Stock
Debt Instrument [Line Items]
Debt instrument, interest rate term			7.75% plus LIBOR
Class of warrants, exercise price			$ 16.667
Two Thousand And Nineteen Credit Agreement \| Series D Convertible Preferred Stock
Debt Instrument [Line Items]
Class of warrants, exercise price			$ 16.667
Two Thousand And Nineteen Credit Agreement \| Senior Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount		$ 70.0
Proceeds from senior term loan		$ 40.0
Long-term debt, date date			May 20, 2024
Debt instrument, fee amount			$ 4.6
Debt instrument, Initial debt discount before inception			6.7
Two Thousand And Nineteen Credit Agreement \| Senior Term Loan \| Specified Training Revenue Level One
Debt Instrument [Line Items]
Debt instrument unused borrowing capacity			$ 10.0
Two Thousand And Nineteen Credit Agreement \| Senior Term Loan \| Specified Training Revenue Level Two
Debt Instrument [Line Items]
Debt instrument unused borrowing capacity				$ 20.0
Default Event \| Senior Term Loan
Debt Instrument [Line Items]
Debt instrument, interest rate, increase (decrease)			10.00%