Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2021

Revenue Recognition

Schedule of disaggregation of revenues by payer types

	Three months ended
	March 31,
	2021		2020
(in thousands)
Insurance carriers	$	100,399	$	70,672
Laboratory and other partners		44,535		15,683
Patients		7,382		7,657
Total revenues	$	152,316	$	94,012

Schedule of total revenue by geographic area

	Three months ended
	March 31,
	2021		2020
(in thousands)
United States	$	144,957	$	86,731
Americas, excluding U.S.		813		782
Europe, Middle East, India, Africa		4,459		3,476
Asia Pacific and Other		2,087		3,023
Total revenues	$	152,316	$	94,012

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

	Balance at		Balance at
	March 31,		December 31,
(in thousands)	2021		2020
Assets:
Accounts receivable	$	87,562	$	78,565
Liabilities:
Deferred revenue, current portion	$	9,069	$	50,125
Deferred revenue, long-term portion		23,816		22,805
Total deferred revenues	$	32,885	$	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		1,030
Refunds of revenues previously deferred		(10,000)
Revenue recognized during the period that was included in deferred revenues at the beginning of the period		(30,292)
Revenue recognized from performance obligations satisfied within the same period		(783)
Balance at March 31, 2021	$	32,885