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Description of Business - Narrative (Details) - $ / shares	Jun. 05, 2020	Sep. 30, 2021	Sep. 30, 2020
Access Industries
Subsidiary, Sale of Stock [Line Items]
Sale of stock, percentage of ownership after transaction	98.00%
Sale of stock, percentage of economic interest	76.00%
Common Class A
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)		$ 0.001	$ 0.001
Common Class A | IPO
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.001
Common Class B
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)		$ 0.001	$ 0.001
Common Class B | Access Industries
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.001

X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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X

- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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X

- 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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X

- Definition

Sale Of Stock, Percentage Of Economic Interest

+ References

No definition available.

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