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Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]  
Intangible Assets Subject to Amortization
Intangible assets subject to amortization at December 31, 2016 consisted of the following.
(In thousands)
 
Gross Carrying
Amount
 
 
Accumulated
Amortization
 
 
Net
 
 
 
 
 
 
 
 
 
 
 
Acquired technology
 
$
6,422
 
 
$
(6,422
) 
 
$
—
 
Distributor and provider networks
  
8,709
   
(8,709
)
  
—
 
Total
 
$
15,131
 
 
$
(15,131
) 
 
$
—
 

Intangible assets subject to amortization at December 31, 2015 consisted of the following:

(In thousands)
 
Gross Carrying
Amount
 
 
Accumulated
Amortization
 
 
Net
 
 
 
 
 
 
 
 
 
 
 
Acquired technology
 
$
6,422
 
 
$
(6,422
) 
 
$
—
 
Distributor and provider networks
  
8,709
   
(8,232
)
  
477
 
Total
 
$
15,131
 
 
$
(14,654
) 
 
$
477
 
TPHS Business [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible Assets Subject to Amortization
Intangible assets related to the disposition of the TPHS business include the following:

(In thousands)
 
Gross Carrying
Amount
 
 
Accumulated
Amortization
 
 
Net
 
 
 
 
 
 
 
 
 
 
 
Customer contracts
 
$
12,170
 
 
$
(12,044
) 
 
$
126
 
Acquired technology
 
 
12,126
 
 
 
(11,525
) 
 
 
601
 
Patents
  
24,832
   
(19,121
)
  
5,711
 
Perpetual license to survey-based data
  
32,000
   
(6,695
)
  
25,305
 
Other
 
 
530
 
 
 
(482
) 
 
 
48
 
Total
 
$
81,658
 
 
$
(49,867
) 
 
$
31,791