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Convertible Senior Notes (Tables)

9 Months Ended

Jun. 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 (in thousands):

2026 Notes:			June 30, 2022			September 30, 2021
Principal amount			$	155,250		$	155,250
Less: unamortized discount and issuance costs, net of amortization			(29,093)			(34,332)
Carrying amount			$	126,157		$	120,918
2026 Notes embedded conversion derivative			$	—		$	48,208

Schedule of Changes in Fair Value of Embedded Conversion Derivative

The following table includes a summary of the contingent consideration measured at fair value using significant unobservable inputs (Level 3) during the nine months ended June 30, 2022 (amounts shown in thousands):

Balance at September 30, 2021			$	16,770
Reduction of expense due to changes in fair value			(2,198)
Payment and issuance of stock as contingent consideration associated with the ID R&D acquisition			(9,492)
Balance at June 30, 2022			$	5,080

The following table presents the fair value and the change in fair value for the embedded conversion derivative (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 June 30, 2022			$	—

The remeasurement of the embedded conversion derivative to fair value on March 3, 2022 was offset by the remeasurement of the Notes Hedge. See details of the remeasurement of the Notes Hedge below.

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 (in thousands):

			Three Months Ended June 30,												Nine Months Ended June 30,
			2022						2021						2022						2021
Contractual interest expense			$	290					$	290					$	886					$	463
Amortization of debt discount and issuance costs			1,787						1,933						5,239						3,080
Total interest expense recognized			$	2,077					$	2,223					$	6,125					$	3,543

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