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Employee Stock Purchase Plan (Tables) | 3 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Weighted Average Assumptions of Employee Stock Purchase Plan | The following are the weighted average assumptions used for each respective period:
| Three Months Ended |
| December 31, |
| 2021 |  | 2022 |
Dividend yield | 0.0% |  | 0.0% |
Risk-free interest rate | 0.1% |  | 3.9% |
Volatility | 49.1% |  | 48.1% |
Expected life | Six Months |  | Six Months |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References 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 (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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