Investments - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Schedule of Investments [Line Items]
Allowance for credit losses on available-for-sale investments	$ 0		$ 0		$ 0
Impairment loss on investments	0	$ 0	0	$ 0
Investments	(717,716,000)		(717,716,000)		(848,577,000)
Gain (loss) on investments	(1,000,000)	$ 800,000	100,000	$ 6,300,000
Long-term Investments
Schedule of Investments [Line Items]
Investments	$ (3,559,000)		$ (3,559,000)		$ (3,465,000)
ORIC
Schedule of Investments [Line Items]
Stock held in investment (shares)	588,235		588,235		588,235