Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Schedule of Cash as Reported in Condensed Consolidated Statements of Cash Flows

Cash as reported in these condensed consolidated statements of cash flows consists of the following (in thousands):

	September 30, 2019		December 31, 2018		September 30, 2018		December 31, 2017
Cash and cash equivalents	$	304,265	$	138,951	$	146,700	$	181,568
Restricted cash (SRX Cardio)	—		30		30		173
Restricted cash for royalty payments to HealthCare Royalty Partners and its affiliates ("HCR")	3,155		1,032		242		—
Restricted cash (lease)	46		—		—		—
Total cash balance in condensed consolidated statements of cash flows	$	307,466	$	140,013	$	146,972	$	181,741