Fair Value Measurements - Additional Information (Details) - USD ($)	1 Months Ended		12 Months Ended
	Feb. 28, 2022	Jan. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable equity investments			$ 1,000,000.0	$ 2,200,000
Cash received from sale of non-marketable equity investments			$ 4,200,000
Share price per share			$ 0.01	$ 0.01
Net income (loss)			$ (313,081,000)	$ (476,923,000)	$ (130,695,000)
Aggregate realized gain			3,000,000.0
Non Marketable Equity Investment Member
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Original investment			1,200,000
Matterport, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Original investment				8,700,000
Aggregate realized gain			34,000,000.0
Equity Securities | Matterport, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value of remaining shares held for sale	$ 3,600,000	$ 39,100,000
Share price per share	$ 7.6	$ 9.1
Net income (loss)			(34,800,000)
Original investment			8,700,000
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount invested in non-marketable convertible note				$ 2,000,000.0
Changes in fair value			$ 0