Consolidated balance sheet components - Cash, Cash Equivalents, and Marketable Securities (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Cash and Cash Equivalents [Line Items]
Amortized cost	$ 494,180
Unrealized Gains	1
Unrealized Losses	(215)
Fair Value	493,966
Cash and Cash Equivalents
Cash and Cash Equivalents [Line Items]
Amortized cost	427,913
Unrealized Gains	1
Unrealized Losses	0
Fair Value	427,914
Cash and Cash Equivalents \| Cash
Cash and Cash Equivalents [Line Items]
Amortized cost	418,993
Unrealized Gains	0
Unrealized Losses	0
Fair Value	418,993
Cash and Cash Equivalents \| Money market funds
Cash and Cash Equivalents [Line Items]
Amortized cost	1,457
Unrealized Gains	0
Unrealized Losses	0
Fair Value	1,457
Cash and Cash Equivalents \| U.S. government securities
Cash and Cash Equivalents [Line Items]
Amortized cost	7,463
Unrealized Gains	1
Unrealized Losses	0
Fair Value	7,464
Marketable Securities \| U.S. government securities
Cash and Cash Equivalents [Line Items]
Amortized cost	66,267
Unrealized Gains	0
Unrealized Losses	(215)
Fair Value	$ 66,052

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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