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Leases - Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Discount Rate Leases [Abstract]
Weighted average discount rate - operating leases	4.60%
Weighted average remaining lease term [Abstract]
Weighted average remaining lease term- operating leases	6 years 3 months 18 days
Cash paid for leases [Abstract]
Right-of-use assets obtained in exchange for new operating lease liability	$ 2,892	$ 0
Right Of Use Asset Obtained In Exchange for Lease Liability [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	911	416
Non-cash Tenant Improvement Allowance [Abstract]
Tenant improvement allowance	$ 1,000	$ 0

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- Definition

Cash paid for leases [Abstract]

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Non-cash Tenant Improvement Allowance

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- Definition

Right Of Use Asset Obtained In Exchange for Lease Liability [Abstract]

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- Definition

us-gaap_Capitalized leasehold improvements paid by lessor

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- Definition

Weighted Average Discount Rate Leases [Abstract]

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Weighted Average Remaining Lease Term [Abstract]

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 4
-Subparagraph (g)(1)
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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-Publisher FASB
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