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Leases - Other Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Right Of Use Asset Obtained In Exchange for Lease Liability [Abstract] |  |  |
Cash paid for amounts included in the measurement of operating lease liabilities |  | $ 1,784 | $ 1,175
Cash paid for leases [Abstract] |  |  |
Right-of-use assets obtained in exchange for new operating lease liability |  | 3,238 | 593
Non-cash Tenant Improvement Allowance [Abstract] |  |  |
Tenant improvement allowance | $ 0 | $ 1,000 | $ 0
Weighted average remaining lease term [Abstract] |  |  |
Weighted average remaining lease term- operating leases |  | 6 years 4 months 24 days |
Weighted Average Discount Rate Leases [Abstract] |  |  |
Weighted average discount rate - operating leases |  | 4.50% |

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- Definition Non-cash Tenant Improvement Allowance + References No definition available. + Details
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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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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