Investments (Tables)

3 Months Ended

Mar. 31, 2025

Investments, Debt and Equity Securities [Abstract]

Summary of Available-for-Sale Investments by Security type

Available-for-sale investments by security type were as follows (in thousands):

	Estimated Fair Value		Gross Unrealized Gains		Gross Unrealized Losses		Amortized Cost
At March 31, 2025:
U.S. Treasuries - Cash equivalents	$	164,320	$	—	$	22	$	164,342
Total	$	164,320	$	—	$	22	$	164,342
At December 31, 2024:
U.S. Treasuries - Cash equivalents	$	329,457	$	84	$	—	$	329,373
Total	$	329,457	$	84	$	—	$	329,373

Estimated Fair Values of Available for Sale Securities

The estimated fair values of available-for-sale securities at March 31, 2025, by contractual maturity, are summarized as follows (in thousands):

	March 31, 2025
Due in one year or less	$	164,320

Summary Of Net Gains And Losses On Equity Securities

	For the Three Months Ended March 31,
	2025		2024
Equity securities:
Net gains (losses) recognized during the period on equity    securities	$	2,644	$	(1,144	)
Unrealized net gains (losses) recognized during the period on equity securities still held at the reporting date	$	2,644	$	(1,144	)