Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2021

Revenue Recognition

Schedule of disaggregation of revenues by payer types

	Three months ended				Six months ended
	June 30,				June 30,
	2021		2020		2021		2020
(in thousands)
Insurance carriers	$	118,396	$	67,630	$	218,795	$	138,302
Laboratory and other partners		15,599		13,041		60,134		28,724
Patients		8,031		5,801		15,413		13,458
Total revenues	$	142,026	$	86,472	$	294,342	$	180,484

Schedule of total revenue by geographic area

	Three months ended				Six months ended
	June 30,				June 30,
	2021		2020		2021		2020
(in thousands)
United States	$	134,814	$	80,757	$	279,771	$	167,488
Americas, excluding U.S.		992		721		1,805		1,503
Europe, Middle East, India, Africa		4,265		3,584		8,724		7,060
Asia Pacific and Other		1,955		1,410		4,042		4,433
Total revenues	$	142,026	$	86,472	$	294,342	$	180,484

Schedule of beginning and ending balances of accounts receivable and deferred revenues

	Balance at		Balance at
	June 30,		December 31,
(in thousands)	2021		2020
Assets:
Accounts receivable	$	100,130	$	78,565
Liabilities:
Deferred revenue, current portion	$	10,647	$	50,125
Deferred revenue, long-term portion		23,562		22,805
Total deferred revenues	$	34,209	$	72,930

Schedule of changes in the balance of deferred revenues

	Deferred
	Revenues
	(in thousands)
Balance at December 31, 2020	$	72,930
Increase in deferred revenues		3,474
Refunds of revenues previously deferred		(10,000)
Revenue recognized during the period that was included in deferred revenues at the beginning of the period		(30,839)
Revenue recognized from performance obligations satisfied within the same period		(1,356)
Balance at June 30, 2021	$	34,209