Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	$ 2,123,511	$ 12,093
Money market funds | Cash and cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	1,070,979	6,413
Money market funds | Restricted cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	1,050,000
Marketable equity securities | Prepaid expenses and other current assets
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	2,532
Embedded derivative | Long-term debt
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets		5,680
Convertible Security | Deferred acquisition costs, current
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Liability		46,500
Level 1
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	2,123,511	6,413
Level 1 | Money market funds | Cash and cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	1,070,979	6,413
Level 1 | Money market funds | Restricted cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	1,050,000
Level 1 | Marketable equity securities | Prepaid expenses and other current assets
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	2,532
Level 1 | Embedded derivative | Long-term debt
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets		0
Level 1 | Convertible Security | Deferred acquisition costs, current
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Liability		0
Level 2
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0	0
Level 2 | Money market funds | Cash and cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0	0
Level 2 | Money market funds | Restricted cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0
Level 2 | Marketable equity securities | Prepaid expenses and other current assets
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0
Level 2 | Embedded derivative | Long-term debt
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets		0
Level 2 | Convertible Security | Deferred acquisition costs, current
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Liability		0
Level 3
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0	5,680
Level 3 | Money market funds | Cash and cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0	0
Level 3 | Money market funds | Restricted cash equivalents
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	0
Level 3 | Marketable equity securities | Prepaid expenses and other current assets
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets	$ 0
Level 3 | Embedded derivative | Long-term debt
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Assets		5,680
Level 3 | Convertible Security | Deferred acquisition costs, current
Fair Value By Fair Value Hierarchy Level [Line Items]
Financial Liability		$ 46,500