Marketable Securities - Continuous Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Corporate debt securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	$ 5,819	$ 3,799
Gross unrealized losses, less than 12 months, short-term AFS securities	(5)	(11)
Fair value, 12 months or greater, short-term AFS securities	99,504	47,230
Gross unrealized losses, 12 months or greater, short-term AFS securities	(1,823)	(1,275)
Fair value, short-term AFS securities	105,323	51,029
Gross unrealized losses, short-term AFS securities	(1,828)	(1,286)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	2,451	2,004
Gross unrealized losses, less than 12 months, long-term AFS securities	0	(57)
Fair value, 12 months or greater, long-term AFS securities	245	106,826
Gross unrealized losses, 12 months or greater, long-term AFS securities	(5)	(6,320)
Fair value, long-term AFS securities	2,696	108,830
Gross unrealized losses, long-term AFS securities	(5)	(6,377)
U.S. Treasury securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	995	0
Gross unrealized losses, less than 12 months, short-term AFS securities	(1)	0
Fair value, 12 months or greater, short-term AFS securities	24,978	44,133
Gross unrealized losses, 12 months or greater, short-term AFS securities	(666)	(963)
Fair value, short-term AFS securities	25,973	44,133
Gross unrealized losses, short-term AFS securities	(667)	(963)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	14,792	282
Gross unrealized losses, less than 12 months, long-term AFS securities	(36)	(9)
Fair value, 12 months or greater, long-term AFS securities	290	24,132
Gross unrealized losses, 12 months or greater, long-term AFS securities	(6)	(1,567)
Fair value, long-term AFS securities	15,082	24,414
Gross unrealized losses, long-term AFS securities	(42)	(1,576)
U.S. governmental agency securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	0	0
Gross unrealized losses, less than 12 months, short-term AFS securities	0	0
Fair value, 12 months or greater, short-term AFS securities	5,916	22,084
Gross unrealized losses, 12 months or greater, short-term AFS securities	(84)	(722)
Fair value, short-term AFS securities	5,916	22,084
Gross unrealized losses, short-term AFS securities	(84)	(722)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	3,832	0
Gross unrealized losses, less than 12 months, long-term AFS securities	(25)	0
Fair value, 12 months or greater, long-term AFS securities	0	5,673
Gross unrealized losses, 12 months or greater, long-term AFS securities	0	(326)
Fair value, long-term AFS securities	3,832	5,673
Gross unrealized losses, long-term AFS securities	(25)	(326)
Municipal securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities		0
Gross unrealized losses, less than 12 months, short-term AFS securities		0
Fair value, 12 months or greater, short-term AFS securities		8,726
Gross unrealized losses, 12 months or greater, short-term AFS securities		(177)
Fair value, short-term AFS securities		8,726
Gross unrealized losses, short-term AFS securities		(177)
Total short-term AFS securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	6,814	3,799
Gross unrealized losses, less than 12 months, short-term AFS securities	(6)	(11)
Fair value, 12 months or greater, short-term AFS securities	130,398	122,173
Gross unrealized losses, 12 months or greater, short-term AFS securities	(2,573)	(3,137)
Fair value, short-term AFS securities	137,212	125,972
Gross unrealized losses, short-term AFS securities	(2,579)	(3,148)
Total long-term AFS securities
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	21,075	2,286
Gross unrealized losses, less than 12 months, long-term AFS securities	(61)	(66)
Fair value, 12 months or greater, long-term AFS securities	535	136,631
Gross unrealized losses, 12 months or greater, long-term AFS securities	(11)	(8,213)
Fair value, long-term AFS securities	21,610	138,917
Gross unrealized losses, long-term AFS securities	$ (72)	$ (8,279)