Cash Equivalents (Tables)

3 Months Ended

Mar. 31, 2020

Cash Equivalents and Marketable Securities [Abstract]

Schedule of cash equivalents and marketable securities

Cash equivalents at March 31, 2020 and December 31, 2019 consisted of the following (in thousands):

	March 31, 2020				December 31, 2019
	Adjusted Cost		Estimated Fair Value		Adjusted Cost		Estimated Fair Value
Money market funds (1)	$	68,460	$	68,460	$	71,248	$	71,248

⁽¹⁾ Money market funds are classified in cash and cash equivalents on our unaudited condensed consolidated balance sheets.