Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue Recognition

Schedule of disaggregation of revenues by payer types

	Three months ended				Six months ended
	June 30,				June 30,
	2020		2019		2020		2019
(in thousands)
Insurance carriers	$	67,630	$	50,777	$	138,302	$	100,978
Laboratory and other partners		13,041		15,132		28,724		25,155
Patients		5,801		8,446		13,458		15,046
Total revenues	$	86,472	$	74,355	$	180,484	$	141,179

Schedule of total revenue by geographic area

	Three months ended				Six months ended
	June 30,				June 30,
	2020		2019		2020		2019
(in thousands)
United States	$	80,757	$	62,393	$	167,488	$	122,676
Americas, excluding U.S.		721		767		1,503		1,585
Europe, Middle East, India, Africa		3,584		4,318		7,060		8,322
Asia Pacific and Other		1,410		6,877		4,433		8,596
Total revenues	$	86,472	$	74,355	$	180,484	$	141,179

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

	Balance at		Balance at
	June 30,		December 31,
(in thousands)	2020		2019
Assets:
Accounts receivable	$	58,706	$	53,351
Liabilities:
Deferred revenue, current portion	$	52,392	$	56,016
Deferred revenue, long-term portion		22,533		23,808
Total deferred revenues	$	74,925	$	79,824

Schedule of changes in the balance of deferred revenues

	Deferred
	Revenues
(in thousands)
Balance at December 31, 2019	$	79,824
Increase in deferred revenues		746
Revenue recognized during the period that was included in deferred revenues at the beginning of the period		(4,943)
Revenue recognized from performance obligations satisfied within the same period		(702)
Balance at June 30, 2020	$	74,925