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v3.21.1

Revenue - Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020 | Sep. 30, 2020
Capitalized Contract Cost [Line Items] |  |  |  |  |
Current contract assets | $ 2,000 |  | $ 2,000 |  | $ 1,000
Non-current contract assets | 0 |  | 0 |  | 0
Current contract liabilities | 1,402 |  | 1,402 |  | 947
Non-current contract liabilities | 100 |  | 100 |  | 200
Revenue recognized included in contract liabilities |  |  | 500 |  |
Current capitalized costs | 106 |  | 106 |  | 130
Non-current capitalized costs | 0 |  | 0 |  |
Incremental costs amortized | 84 | $ 84 | 171 | $ 162 |
Impairment related to costs capitalized | $ 0 |  | $ 0 |  |
Payment terms |  |  | 30 days |  |
Practical Expedient, Incremental Costs |  |  | true |  |
Remaining Performance Obligation, Optional Exemption |  |  | true |  |
Minimum |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Amortization Period | 3 years |  | 3 years |  |
Maximum |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Amortization Period | 6 years |  | 6 years |  |
Europe | Maximum |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Payment terms |  |  | 90 days |  |
TS |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Current capitalized costs | $ 13 |  | $ 13 |  | 13
Non-current capitalized costs | 16 |  | 16 |  | $ 22
Incremental costs amortized | $ 3 | $ 3 | 6 | $ 6 |
Impairment related to costs capitalized |  |  | $ 0 |  |

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