Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Schedule of Cash and Equivalents

Cash and cash equivalents consist of highly liquid investments with maturities of three months or less from the date of purchase. Cash and cash equivalents consist of the following at (in thousands):

	March 31, 2019		December 31, 2018
Cash	$	9,370	$	6,750
Money market funds		49,113		39,168
Asset-backed securities		15,000		15,000
Corporate debt securities		24,228		9,236
Cash and cash equivalents	$	97,711	$	70,154

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 (in thousands):

	March 31, 2019		December 31, 2018
Cash and cash equivalents	$	97,711	$	70,154
Restricted cash current		6,628		10,847
Restricted cash non-current		1,860		958
Cash, cash equivalents and restricted cash	$	106,199	$	81,959