Cash Equivalents and Investments (Tables)

12 Months Ended

Dec. 31, 2019

Cash and Cash Equivalents [Abstract]

Summary of cash and available-for-sale securities

The following table summarizes the Company’s cash and cash equivalents by significant investment category reported as cash and cash equivalents as of December 31, 2019 and 2018:

					Reported as:
(in thousands)	Amortized Cost		Estimated Fair Value		Cash and Cash Equivalents
December 31, 2019
Cash	$	37,718	$	37,718	$	37,718
Money market funds	131,264		131,264		131,264
Total 1	$	168,982	$	168,982	$	168,982
December 31, 2018
Cash	$	138,961	$	138,961	$	138,961
Money market funds	226,719		226,719		226,719
Total 1	$	365,680	$	365,680	$	365,680