Investments (Tables)

12 Months Ended

Dec. 31, 2022

Investments

Schedule of securities classified as held-to-maturity

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
	(in thousands)
Corporate and agency bonds (due within 1 year)	$	21,612	$	—	$	(60)	$	21,552
Municipal bonds (due within 1 year)		1,903		—		(2)		1,901
Total investments as of December 31, 2022	$	23,515	$	—	$	(62)	$	23,453
Corporate bonds (due within 1 year)	$	2,481	$	—	$	(3)	$	2,478
Corporate bonds (due within 1 to 3 years)		1,248		—		(3)		1,245
Municipal bonds (due within 1 year)		3,263		—		(2)		3,261
Total investments as of December 31, 2021	$	6,992	$	—	$	(8)	$	6,984