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Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]  
Restructuring and Related Costs
The following table summarizes activity related to liabilities associated with our oil and gas restructuring activities in first six months 2015:
 
Employee-Related Costs
 
Lease Termination Charge
 
Total
 
(In thousands)
Balance at year-end 2014
$
(2,367
)
 
$
—

 
$
(2,367
)
Additions
(1,574
)
 
(1,750
)
 
(3,324
)
Payments
2,038

 
1,750

 
3,788

Balance at second quarter-end 2015
$
(1,903
)
 
$
—

 
$
(1,903
)