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Financial Instruments - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Realized investment gains (losses)	$ 0
Net unrealized gains/(losses) on investments	(154,200,000)	$ (16,000,000)
Level 1:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loss on investment	21,200,000
Level 1: | Broncus
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loss on investment	21,200,000
Level 2:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Changes in fair value	$ 200,000

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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