Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of cash and cash equivalents

Cash and cash equivalents consist of the following at December 31 (in thousands):

	2020		2019
Cash	$	122,312	$	15,863
Money market funds	96,116		42,960
Government-backed securities	44,250		20,000
Treasury securities	44,052		—
Corporate debt securities	246,668		—
Cash and cash equivalents	$	553,398	$	78,823

Schedule of reconciliation of cash, cash equivalents and restricted cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statement of cash flows at December 31 (in thousands):

	2020		2019
Cash and cash equivalents	$	553,398	$	78,823
Restricted cash current	93,880		2,947
Restricted cash non-current	1,460		410
Cash, cash equivalents and restricted cash	$	648,738	$	82,180