Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Measurements

Summary of financial assets and liabilities measured on recurring basis

	March 31, 2024								December 31, 2023
	Level I		Level II		Level III		Total		Level I		Level II		Level III		Total
	(in thousands)
Financial Assets:
Cash, cash equivalents and restricted cash (1)	$	813,817	$	—	$	—	$	813,817	$	642,095	$	—	$	—	$	642,095
U.S. Treasury securities		34,465		—		—		34,465		200,418		—		—		200,418
Municipal securities		—		34,656		—		34,656		—		36,464		—		36,464
Total financial assets	$	848,282	$	34,656	$	—	$	882,938	$	842,513	$	36,464	$	—	$	878,977