Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2024

Fair Value Measurements

Schedule of assets measured at fair value on a recurring basis

Assets measured at fair value on a recurring basis are summarized below (in thousands):

	Fair Value Measurements as of September 30, 2024
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	578,812	$	—	$	578,812	$	—
Commercial paper		79,621		—		79,621		—
		658,433		—		658,433		—
Investments in Other Companies		4,860		—		—		4,860
Cash and Cash Equivalents		177,609		177,609		—		—
Total Assets Measured at Fair Value	$	840,902	$	177,609	$	658,433	$	4,860

	Fair Value Measurements as of December 31, 2023
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	677,074	$	—	$	677,074	$	—
Commercial paper		9,872		—		9,872		—
		686,946		—		686,946		—
Investments in Other Companies		15,402		2,925		—		12,477
Cash and Cash Equivalents		148,277		148,277		—		—
Total Assets Measured at Fair Value	$	850,625	$	151,202	$	686,946	$	12,477