Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Financial Assets, Temporary Equity, and Liabilities Not Measured at Fair Value in the Consolidated Balance Sheet

The tables below present our estimates of fair value of financial assets and liabilities that were not measured at fair value:

	Carrying Value		Estimated Fair Value
	June 30, 2023		June 30, 2023		Fair Value Measurement Using
(in thousands)					Level 1		Level 2		Level 3
Financial assets:
2.89% promissory note receivable due April 2024	$	1,242	$	1,242	$	—	$	—	$	1,242
12.00% promissory note receivable from Founders	16,050		16,050		—		—		16,050
Investments in unconsolidated affiliates	10,247		41,367		41,367		—		—
Other investments	39,220		39,220		—		—		39,220
Financial liabilities:
2024 Convertible Notes	$	34,223	$	36,126	$	—	$	36,126	$	—
2025 Convertible Notes	102,433		94,586		—		94,586		—
2029 Convertible Notes	223,030		228,294		—		228,294		—

	Carrying Value		Estimated Fair Value
	June 30, 2022		June 30, 2022		Fair Value Measurement Using
(in thousands)					Level 1		Level 2		Level 3
Financial assets:
2.89% promissory note receivable due April 2024	$	1,207	$	1,207	$	—	$	—	$	1,207
Investments in unconsolidated affiliates	43,384		47,973		41,342		—		6,631
Other investments	18,000		18,000				—		18,000
Financial liabilities:
2024 Convertible Notes	$	142,404	$	143,951	$	—	$	143,951	$	—
2025 Convertible Notes	170,117		144,555		—		144,555		—

	Carrying Value		Estimated Fair Value
	September 30, 2022		September 30, 2022		Fair Value Measurement Using
(in thousands)					Level 1		Level 2		Level 3
Financial assets:
2.89% promissory note receivable due April 2024	$	1,215	$	1,215	$	—	$	—	$	1,215
Investments in unconsolidated affiliates	37,733		40,279		40,279		—		—
Other investments	24,220		24,220		—		—		24,220
Financial liabilities:
2024 Convertible Notes	$	142,575	$	157,727	$	—	$	157,727	$	—
2025 Convertible Notes	170,328		147,488		—		147,488		—