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Marketable Securities - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Investments
Amortized Cost	$ 134,775	$ 207,917
Gross Unrealized Gain		3
Gross Unrealized Loss	(1,494)	(666)
Estimated Fair Value	133,281	207,254
Unrealized losses in a continuous loss position for more than twelve consecutive months	91,800
Gross realized gains	9	57
Interest income	700	1,000
Cost Maturities:
Within 1 year	105,930
Between 1 to 2 years	28,845
Total investments available for sale	134,775
Fair Value Maturities:
Within 1 year	104,660
Between 1 to 2 years	28,621
Total investments available for sale	133,281
Corporate bonds
Investments
Amortized Cost	133,163	207,917
Gross Unrealized Gain		3
Gross Unrealized Loss	(1,457)	(666)
Estimated Fair Value	131,706	$ 207,254
U.S. Government agencies
Investments
Amortized Cost	1,612
Gross Unrealized Loss	(37)
Estimated Fair Value	$ 1,575

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