XML 82 R12.htm IDEA: XBRL DOCUMENT v2.4.1.9
Revenue
12 Months Ended
Dec. 31, 2014
Revenue [Abstract]  
Revenue
Revenue
The Company differentiates revenue and cost of revenue based on whether the source of revenue is attributable to products, rentals or services. Revenue and cost of revenue by source are as follows (in thousands):
 
Year ended December 31,
 
2014
 
2013
 
2012
Revenue:
 
 
 
 
 
Products
$
354,356

 
$
282,639

 
$
224,777

Rentals
65,549

 
62,042

 
67,938

Services
29,252

 
26,384

 
20,113

 
$
449,157

 
$
371,065

 
$
312,828

Cost of Revenue:
 
 
 
 
 
Products
$
214,417

 
$
180,800

 
$
135,367

Rentals
31,285

 
24,987

 
30,618

Services
12,385

 
9,916

 
8,051

Depreciation
8,111

 
7,835

 
7,173

 
$
266,198

 
$
223,538

 
$
181,209