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Convertible Senior Notes (Tables) | 12 Months Ended
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Sep. 30, 2022
Debt Disclosure [Abstract] |
Schedule of Carrying Values of Company's 2026 Notes | The carrying values of the Company’s 2026 Notes are as follows (amounts shown in thousands):
| September 30, 2022 | September 30, 2021
2026 Notes: |  |
Principal amount | $ | 155,250 |  | $ | 155,250 |
Less: unamortized discount and issuance costs, net of amortization | (27,280) |  | (34,332) |
Carrying amount | $ | 127,970 |  | $ | 120,918 |
2026 Notes embedded conversion derivative | $ | — |  | $ | 48,208 |
Schedule of Changes in Fair Value of Embedded Conversion Derivative | he following table includes a rollforward of the contingent consideration liability measured at fair value using significant unobservable inputs (Level 3) during the twelve months ended September 30, 2022 (amounts in thousands):
Balance at September 30, 2021 | $ | 16,770 |
Expenses recorded due to changes in fair value | (1,358) |
Payment of contingent consideration associated with the ID R&D acquisition | (9,492) |
Balance at September 30, 2022 | $ | 5,920 |
The following table presents the fair value and the change in fair value for the embedded conversion derivative (amounts shown in thousands):
Embedded conversion derivative |
Fair value as of September 30, 2021 | $ | 48,208 |
Remeasurement to fair value on March 3, 2022 | (19,692) |
Impact of increase of authorized shares of common stock on convertible senior notes hedge | (28,516) |
Fair value as of September 30, 2022 | $ | — |
Schedule of Interest Costs Recognized Related to 2026 Notes | The following table presents the total amount of interest cost recognized relating to the 2026 Notes for the twelve months ended September 30, 2022 and 2021 (amounts shown in thousands):
|  | 2022 |  | 2021
Contractual interest expense |  | $ | 1,179 |  |  | $ | 756 |
Amortization of debt discount and issuance costs |  | 7,053 |  |  | 4,372 |
Total interest expense recognized |  | $ | 8,232 |  |  | $ | 5,128 |

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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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