Stock-based Compensation - Summary Of Oustanding Restricted Stock Awards Activity (Details) - Restricted Stock - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of Restricted Stock Awards , Beginning Balance	3,924,414	3,664,653
Number of Restricted Stock Awards , Granted	0	3,267,792
Number of Restricted Stock Awards , Repurchased	0	(59,637)
Number of Restricted Stock Awards , Vested	(2,687,643)	(2,948,394)
Number of Restricted Stock Awards , Ending Balance	1,236,771	3,924,414
Weighted Average Grant Date Fair Value per Share , Beginning Balance	$ 1.81	$ 1.68
Weighted Average Grant Date Fair Value per Share , Granted	0	1.97
Weighted Average Grant Date Fair Value per Share , Repurchased	0	1.68
Weighted Average Grant Date Fair Value per Share , Vested	1.85	1.83
Weighted Average Grant Date Fair Value per Share , Ending Balance	$ 1.71	$ 1.81

Share based compensation arrangement by share based payment award equity instruments other than options repurchased.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Repurchased In Period Weighted Average Grant Date Fair Value.

+ References

No definition available.

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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.

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No definition available.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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