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Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2025

Marketable Securities

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


		Amortized			Gross Unrealized			Gross Unrealized			Fair
		Cost			Gains			Losses			Value

		(In thousands)
September 30, 2025
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less		$	153,745		$	355		$	(2)		$	154,098
Maturing after one year through three years			54,675			264			—			54,939
Total U.S. government and municipal obligations		$	208,420		$	619		$	(2)		$	209,037
Corporate debt securities
Maturing in one year or less		$	305,427		$	470		$	—		$	305,897
Maturing after one year through three years			32,171			82			(1)			32,252
Total corporate debt securities		$	337,598		$	552		$	(1)		$	338,149
Total marketable securities		$	546,018		$	1,171		$	(3)		$	547,186


		Amortized			Gross Unrealized			Gross 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