XML 45 R28.htm IDEA: XBRL DOCUMENT v3.10.0.1
Business Segment and Geographic Information (Tables)
 12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Revenue from External Customers by Geographic Areas
The following table sets forth revenues by our two primary geographical markets, the United States and outside of the United States, based on the geographic location to which we deliver the product:
 
Twelve Months Ended December 31,
 
2018
 
2017
 
2016
(Dollars in millions)
Amount
 
%
of Total
 
Amount
 
%
of Total
 
Amount
 
%
of Total
Revenues:
 
 
 
 
 
 
 
 
 
 
 
United States
$
818.4

 
79
%
 
$
596.2

 
83
%
 
$
497.5

 
87
%
Outside of the United States
213.2

 
21
%
 
122.3

 
17
%
 
75.8

 
13
%
Total
$
1,031.6

 
100
%
 
$
718.5

 
100
%
 
$
573.3

 
100
%
Disaggregation of Revenue
The following table sets forth revenues by major sales channel for the twelve months ended December 31, 2018, 2017 and 2016:
 
Twelve Months Ended December 31,
 
2018
 
2017
 
2016
(Dollars in millions)
Amount
 
%
of Total
 
Amount
 
%
of Total
 
Amount
 
%
of Total
Revenues:
 
 
 
 
 
 
 
 
 
 
 
Distributor
$
652.9

 
63
%
 
$
538.0

 
75
%
 
$
411.8

 
72
%
Direct
378.7

 
37
%
 
180.5

 
25
%
 
161.5

 
28
%
Total
$
1,031.6

 
100
%
 
$
718.5

 
100
%
 
$
573.3

 
100
%