Segment Information
 12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Segment Information
Segment Information
Segment reporting is prepared on the same basis that the Company’s chief executive officer, who is the Company’s chief operating decision maker, manages the business, makes operating decisions and assesses performance. The Company operates in one segment, pharmaceuticals. Enterprise-wide disclosures about revenues, significant customers, and property and equipment, net by location are presented below.
Revenues by Product
Product revenues, net consisted of the following:
 
2019
(as reported under ASC 606)
 
2018
(as reported under ASC 606)
 
2017
(as reported under ASC 605)
 
(in thousands)
TRIKAFTA
$
420,105

 
$
—

 
$
—

SYMDEKO/SYMKEVI
1,417,668

 
768,657

 
—

ORKAMBI
1,331,891

 
1,262,166

 
1,320,850

KALYDECO
991,062

 
1,007,502

 
844,630

Total product revenues, net
$
4,160,726

 
$
3,038,325

 
$
2,165,480


Revenues by Geographic Location
Net product revenues are attributed to countries based on the location of the customer. Collaborative and royalty revenues are attributed to countries based on the location of the Company’s subsidiary associated with the collaborative arrangement related to such revenues. Total revenues from external customers and collaborators by geographic region consisted of the following:
 
2019
(as reported under ASC 606)
 
2018
(as reported under ASC 606)
 
2017
(as reported under ASC 605)
 
(in thousands)
United States
$
3,062,555

 
$
2,365,079

 
$
1,986,786

Outside of the United States
 
 
 
 
 
Europe
885,762

 
543,179

 
420,317

Other
214,504

 
139,339

 
81,549

Total revenues outside of the United States
1,100,266

 
682,518

 
501,866

Total revenues
$
4,162,821

 
$
3,047,597

 
$
2,488,652


Significant Customers
Gross revenues and accounts receivable from each of the Company’s customers who individually accounted for 10% or more of total gross revenues and/or 10% or more of total gross accounts receivable consisted of the following:
 
Percent of Total Gross
Revenues
 
Percent of Gross Accounts Receivable
 
Year Ended December 31,
 
As of December 31,
 
2019
(as reported under ASC 606)
 
2018
(as reported under ASC 606)
 
2017
(as reported under ASC 605)
 
2019
 
2018
McKesson Corporation
17
%
 
14
%
 
<10
%
 
22
%
 
16
%
Walgreen Co.
15
%
 
20
%
 
17
%
 
14
%
 
16
%
Accredo/Curascript
14
%
 
14
%
 
14
%
 
15
%
 
10
%

Long-lived Assets by Location
Long-lived assets by location consisted of the following:
 
As of December 31,
 
2019
 
2018
 
(in thousands)
United States
$
768,572

 
$
778,157

Outside of the United States
 
 
 
United Kingdom
57,383

 
30,496

Other
7,327

 
3,352

Total long-lived assets outside of the United States
64,710

 
33,848

      Total long-lived assets
$
833,282

 
$
812,005