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Fair Value Measurements Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

The following table summarizes the levels of fair value measurements of our financial assets:

			June 30, 2023												December 31, 2022
(in thousands)			Total			Level 1			Level 2						Total			Level 1			Level 2
Money market funds			$	571,178		$	571,178		$	—					$	735,475		$	735,475		$	—
U.S. Treasury bills			35,998			35,998			—						29,703			29,703			—
Municipal bonds			—			—			—						3,365			—			3,365
Total financial assets			$	607,176		$	607,176		$	—					$	768,543		$	765,178		$	3,365

Investments Classified by Contractual Maturity Date [Table Text Block]

As of June 30, 2023, the contractual maturities of the marketable securities in our portfolio were less than one year.

Debt Securities, Available-for-sale

The following is a summary of our available-for-sale marketable securities:

(in thousands)			Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Estimated Fair Value
June 30, 2023
U.S. Treasury bills			$	36,036		$	2		$	(40)		$	35,998
December 31, 2022
U.S. Treasury bills			$	29,782		$	—		$	(79)		$	29,703
Municipal bonds			3,369			—			(4)			3,365

X

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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