Investments - Gains (Losses) on Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Net losses during the period	$ (28,138)	$ (53,888)
Less: gain (loss) on securities sold during the period	357	(46,743)
Unrealized loss recognized during the period on short-term investments held at the reporting date	$ (28,495)	$ (7,145)	$ 298,490