Available-for-Sale-Securities (Tables)

3 Months Ended

Mar. 31, 2022

Debt Securities, Available-for-sale [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following table is a summary of available-for-sale securities recorded in cash and cash equivalents or marketable securities in our Consolidated Balance Sheets (in thousands):

	March 31, 2022								December 31, 2021
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Corporate debt securities	$	62,770	$	—	$	(162)	$	62,608	$	53,135	$	—	$	(65)	$	53,070
Money market funds	6,578		—		—		6,578		18,124		—		—		18,124
Municipal debt securities	17,267		—		(34)		17,233		20,263		—		(5)		20,258
Total	$	86,615	$	—	$	(196)	$	86,419	$	91,522	$	—	$	(70)	$	91,452

Schedule of Marketable Securities

Estimated fair values of available-for-sale securities are generally based on prices obtained from commercial pricing services. The following table summarizes the classification of the available-for-sale securities in our Consolidated Balance Sheets (in thousands):

	March 31, 2022		December 31, 2021
Cash equivalents	$	10,647	$	21,129
Marketable securities	75,772		70,323
Total	$	86,419	$	91,452

Investments Classified by Contractual Maturity Date

The following table summarizes our portfolio of available-for-sale securities by contractual maturity (in thousands):

	March 31, 2022
	Amortized Cost		Estimated Fair Value
Less than one year	$	86,615	$	86,419
Greater than one year			—
Total	$	86,615	$	86,419