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Asset and Long-term Investment Impairment Charges (Tables)
 6 Months Ended
Jun. 30, 2017
Asset And Long Term Investment Impairment Charges [Abstract]  
Asset and Long-term Investment Impairment Charges

We incurred the following asset and long-term investment impairment charges:

 

 

Three Months Ended

June 30,

 

 

Six Months Ended

June 30,

 

(In thousands)

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Asset impairment charges

 

$

0

 

 

$

0

 

 

$

0

 

 

$

4,650

 

Impairment of long-term investments

 

$

144,590

 

 

$

0

 

 

$

144,590

 

 

$

0