Investments - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Investments [Line Items]
Allowance for credit losses on available-for-sale investments	$ 0	$ 0
Debt Securities, Available-For-Sale, Impairment Loss	0	0	$ 0
Investments	848,577,000	1,078,257,000
Debt Securities, Available-for-Sale, Gain (Loss)	4,800,000	7,400,000	$ (4,200,000)
Long-term investments
Schedule of Investments [Line Items]
Investments	$ 3,465,000	$ 8,218,000
ORIC
Schedule of Investments [Line Items]
Stock held in investment (shares)	588,235