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Operating Property and Equipment
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
OPERATING PROPERTY AND EQUIPMENT
OPERATING PROPERTY AND EQUIPMENT
 
 
Estimated
Useful  Lives
 
December 31,
 
 
2015
 
2014
 
 
(In years)
 
(In thousands)
Land
 
 
$
203,543

 
201,089

Buildings and improvements
 
10 — 40
 
776,304

 
766,360

Machinery and equipment
 
3 — 10
 
709,173

 
663,616

Other
 
3 — 10
 
109,554

 
103,557

 
 
 
 
1,798,574

 
1,734,622

Accumulated depreciation
 
 
 
(1,083,604
)
 
(1,035,028
)
Total
 
 
 
$
714,970

 
699,594

 

Depreciation expense was $84 million, $79 million and $73 million in 2015, 2014 and 2013, respectively.