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Restructuring Costs (Tables)
 12 Months Ended
Dec. 31, 2015
Restructuring and Related Activities [Abstract]  
Restructuring Liability Account Excluding Impairment Charges
The activity and balance of the restructuring liability account excluding impairment charges is as follows (in thousands):
 
Year Ended December 31,
 
2015
 
2014
 
2013
Beginning balance
$
644

 
$
1,374

 
$
2,200

Provision
—

 
—

 
—

Change in estimate
—

 
—

 
—

Payments
(644
)
 
(730
)
 
(826
)
Ending Balance
$
—

 
$
644

 
$
1,374
Restructuring Liability Account included in Accompanying Consolidated Balance Sheets
The restructuring liability account was included in other current liabilities in the accompanying consolidated balance sheets as of December 31, 2014.