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Divestiture-Related Activities (Notes)
 3 Months Ended
Mar. 31, 2017
Divestiture-Related Activities [Abstract]  
Disposal Groups, Including Discontinued Operations, Disclosure
Divestiture-Related Activities
As divestitures occur in the normal course of business, gains or losses on the sale of such assets are recognized in the income statement line item Gains (losses) on divestitures and impairment charges, net, which consist of the following:
 
Three Months Ended
 
March 31,
 
2017
 
2016
 
(In thousands)
Gains on divestitures, net
$
16,751

 
$
1,426

Impairment losses
(11,816
)
 
(1,773
)
Gains (losses) on divestitures and impairment charges, net
$
4,935

 
$
(347
)