Fair Value Measurements - Schedule of Changes in Fair Value of Level 3 Investment (Details) - Matterport, Inc. - Level 3 $ in Thousands	6 Months Ended
	Mar. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance, October 1, 2021	$ 77,540
Realized loss	(38,468)
Sale of investment	(39,072)	[1]
Balance, March 31, 2022	$ 0

[1] Equity securities sold upon expirations of the restriction in January 2022.