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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2014
Commitments And Contingencies Disclosure [Abstract]  
Changes in Accrued Environmental Remediation and Related Costs

The table below presents a summary of the activity in our accrued environmental costs during the past three years.  The amount charged to expense is included in corporate expense on our Consolidated Statements of Operations.  

 

Years ended December 31,

 

 

2012

 

 

2013

 

 

2014

 

 

(In thousands)

 

Balance at the beginning of the year

$

41,637

 

 

$

48,006

 

 

$

113,636

 

Additions charged to expense, net

 

14,467

 

 

 

68,929

 

 

 

6,485

 

Payments, net

 

(8,098

)

 

 

(3,299

)

 

 

(10,106

)

 

 

 

 

 

 

 

 

 

 

 

 

Balance at the end of the year

$

48,006

 

 

$

113,636

 

 

$

110,015

 

 

 

 

 

 

 

 

 

 

 

 

 

Amounts recognized in the balance sheet:

 

 

 

 

 

 

 

 

 

 

 

Current liability

$

5,667

 

 

$

4,859

 

 

$

6,984

 

Noncurrent liability

 

42,339

 

 

 

108,777

 

 

 

103,031

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at the end of the year

$

48,006

 

 

$

113,636

 

 

$

110,015