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Stock Compensation and Unit-Based Compensation - Summary of Additional Information about Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options Outstanding	3,131,266	2,228,904
Weighted Average Remaining Contractual Term (Years), Outstanding, December 31, 2018	8 years 10 months 24 days	9 years 6 months
Options Exercisable	1,348,994
Exercise Price $1.40 - $2.50
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 1.40
Exercise Price	$ 2.50
Options Outstanding	1,019,495
Weighted Average Remaining Contractual Term (Years), Outstanding, December 31, 2018	9 years 8 months 12 days
Options Exercisable	95,635
Exercise Price $2.51 - $7.52
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 2.51
Exercise Price	$ 7.52
Options Outstanding	647,629
Weighted Average Remaining Contractual Term (Years), Outstanding, December 31, 2018	9 years 2 months 12 days
Options Exercisable	324,900
Exercise Price $7.53 - $15.00
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 7.53
Exercise Price	$ 15.00
Options Outstanding	1,464,142
Weighted Average Remaining Contractual Term (Years), Outstanding, December 31, 2018	8 years 7 months 6 days
Options Exercisable	928,459

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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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No definition available.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option 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)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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-Section 50
-Paragraph 2
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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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