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Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2020
Revenue Recognition  
Schedule of disaggregation of revenues by payer types

Year Ended December 31,

2020

2019

2018

(in thousands)

Insurance carriers

$

300,220

$

210,919

$

193,895

Laboratory partners

58,196

59,876

44,062

Patients

32,589

31,533

19,697

Total revenues

$

391,005

$

302,328

$

257,654

Schedule of total revenue by geographic area

Year ended December 31, 

2020

    

2019

    

2018

(in thousands)

United States

$

365,660

 

$

260,846

 

$

225,931

Americas, excluding U.S.

3,469

 

3,218

 

3,472

Europe, Middle East, India, Africa

14,332

 

15,434

 

20,866

Asia Pacific and Other

7,544

 

22,830

 

7,385

Total

$

391,005

 

$

302,328

$

257,654

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

Balance at

Balance at

December 31,

December 31,

2020

2019

(in thousands)

Assets:

Accounts receivable

$

78,565

$

53,351

Liabilities:

Deferred revenue, current portion

$

50,125

$

56,016

Deferred revenue, long-term portion

22,805

23,808

Total deferred revenues

$

72,930

$

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

2,397

Reclasses from deferred revenues to other to short-term liabilities

(799)

Revenue recognized during the period that was included in
deferred revenues at the beginning of the period

(7,246)

Revenue recognized from performance obligations satisfied
within the same period

(1,246)

Balance at December 31, 2020

$

72,930

Schedule of insurance carrier reserve balance

    

December 31, 

    

December 31, 

    

2020

    

2019

(in thousands)

Beginning balance

$

9,410

$

10,012

Additional reserves

19,427

9,560

Refunds to carriers

(6,066)

(7,752)

Reserves released to revenue

(5,405)

(2,410)

Ending balance

$

17,366

$

9,410