Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2024

Marketable Securities

Schedule of marketable debt securities, classified as available-for-sale

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
	(In thousands)
December 31, 2024
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	185,388	$	467	$	—	$	185,855
Maturing after one year through three years		102,331		316		(144)		102,503
Total U.S. government and municipal obligations	$	287,719	$	783	$	(144)	$	288,358
Corporate debt securities
Maturing in one year or less	$	336,350	$	350	$	(54)	$	336,646
Maturing after one year through three years		72,139		36		(254)		71,921
Total corporate debt securities	$	408,489	$	386	$	(308)	$	408,567
Total marketable securities	$	696,208	$	1,169	$	(452)	$	696,925
December 31, 2023
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	132,459	$	143	$	(53)	$	132,549
Maturing after one year through three years		26,009		77		—		26,086
Total U.S. government and municipal obligations	$	158,468	$	220	$	(53)	$	158,635
Corporate debt securities
Maturing in one year or less	$	183,625	$	300	$	(10)	$	183,915
Maturing after one year through three years		45,977		257		—		46,234
Total corporate debt securities	$	229,602	$	557	$	(10)	$	230,149
Total marketable securities	$	388,070	$	777	$	(63)	$	388,784