The adjustments to additional paid in capital due to equity component of the transaction cost of the convertible debt.

No definition available.

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- Definition

Represents the consecutive business days under the debt conversion arrangement.

+ References

No definition available.

+ Details

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- Definition

Represents the consecutive trading days considered the measurement period under the debt conversion arrangement.

+ References

No definition available.

+ Details

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- Definition

Represents the threshold percentage of "trading price" per $1 principal amount to product of sale price of common stock and conversion rate.

+ References

No definition available.

+ Details

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- Definition

Represents the default period in the payment when due of interest on any note to invoke customary default provisions under the convertible notes.

+ References

No definition available.

+ Details

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- Definition

Threshold amount of money to be borrowed to invoke customary default provisions under the convertible notes.

+ References

No definition available.

+ Details

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- Definition

The initial carrying amount of the liability component which was was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature.

+ References

No definition available.

+ Details

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- Definition

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

+ References

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-SubTopic 10
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Balance Type:	credit
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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

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-SubTopic 20
-Section 50
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Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 5
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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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-Paragraph 2
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Balance Type:	credit
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- Definition

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

+ References

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Balance Type:	na
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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, after accumulated amortization, of debt discount.

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- Definition

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

+ References

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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-SubTopic 10
-Section S99
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Convertible Senior Notes - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Feb. 13, 2020 USD ($) D $ / shares	Mar. 31, 2021 USD ($) D	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Debt
Equity component of transaction costs for 2020 Convertible Notes			$ 1,773
Amortization period of debt discount				6 years
Initial carrying amount of the liability component				$ 97,200
Carrying amount of the equity component				46,550
Convertible senior notes, net carrying value		$ 139,286		99,575
Accumulated deficit		(312,197)		(333,147)
Additional paid-in capital		482,197		519,143
Adjustment \| Accounting Standards Update 2020-06
Debt
Convertible senior notes, net carrying value				39,489
Accumulated deficit				(5,288)
Additional paid-in capital				$ (44,777)
Convertible senior notes
Debt
Interest rate (as a percent)	2.625%
Aggregate principal amount	$ 143,750
Total debt issuance cost	5,473
Equity component of transaction costs for 2020 Convertible Notes	1,773
Debt discount	$ 3,700
Amortization period of debt discount	6 years
Initial conversion rate	34.2618
Conversion, threshold percentage of stock price trigger \| $ / shares	$ 29.19
Conversion, threshold percentage of stock price trigger	130.00%
Conversion, threshold trading days \| D	20
Conversion, threshold consecutive trading days \| D	30
Consecutive business days \| D	5
Measurement period \| D	10
Threshold percentage to product of sale price of common stock and conversion rate	98.00%
Default period	30 days
Threshold amount of money borrowed	$ 20,000
Convertible senior notes, net carrying value		$ 139,286
Convertible senior notes \| Conversion of convertible debt after the calendar quarter ending on march 31, 2020
Debt
Conversion, threshold percentage of stock price trigger		130.00%
Conversion, threshold trading days \| D		20
Conversion, threshold consecutive trading days \| D		30