Stock-Based Compensation - 2019 Equity Incentive Plan (Details) - 2019 Equity Incentive Plan - shares	Sep. 30, 2019	Apr. 16, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)	1,408,728	2,400,000
Annual automatic increase to the number of shares of common stock reserved for issuance, as a percentage of common stock issued and outstanding as at the immediately preceding fiscal year end		3.00%

Number of shares authorized for issuance under share-based payment arrangement.

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 (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant