Fair Value Measurements - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended
	Feb. 28, 2022	Jan. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable equity investments			$ 2,200,000		$ 2,200,000		$ 2,200,000
Share price per share			$ 0.01		$ 0.01		$ 0.01
Net income (loss)			$ (89,679,000)	$ (109,262,000)	$ (135,768,000)	$ (132,777,000)
Matterport, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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 shares sold	$ 3,600,000	$ 39,100,000
Share price per share	$ 7.6	$ 9.1
Original investment			8,700,000		8,700,000
Equity Securities | Matterport, Inc. | Other Expense, Net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net income (loss)			(44,600,000)		(34,800,000)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount invested into non-marketable convertible note							$ 2,000,000.0
Changes in fair value			$ 0		$ 0