Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2022

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, 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
	June 30, 2021		June 30, 2021		Fair Value Measurement Using
(in thousands)					Level 1		Level 2		Level 3
Financial assets:
2.89% promissory note receivable due April 2024	$	1,173	$	1,173	$	—	$	—	$	1,173
Investments in unconsolidated affiliates	35,387		43,440		35,970		—		7,470
Financial liabilities:
2024 Convertible Notes	$	121,910	$	150,219	$	—	$	150,219	$	—
2025 Convertible Notes	138,722		154,129		—		154,129		—

	Carrying Value		Estimated Fair Value
	September 30, 2021		September 30, 2021		Fair Value Measurement Using
(in thousands)					Level 1		Level 2		Level 3
Financial assets:
2.89% promissory note receivable due April 2024	$	1,181	$	1,181	$	—	$	—	$	1,181
Investments in unconsolidated affiliates	37,724		48,954		41,638		—		7,316
Financial liabilities:
2024 Convertible Notes	$	123,543	$	153,281	$	—	$	153,281	$	—
2025 Convertible Notes	140,643		155,250		—		155,250		—