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Schedule II -- Valuation and Qualifying Accounts (Consolidated)
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Schedule II -- Valuation and Qualifying Accounts (Consolidated)
Schedule II -- Valuation and Qualifying Accounts (Consolidated)
Years ended December 31, 2015, 2014 and 2013


(dollars in thousands)
 
Allowance for Doubtful Accounts & Discounts
 
Valuation Allowance for Deferred Tax Asset
 
 
 
 
 
Balance at December 31, 2012
 
$
5,703

 
$
77,629

 
Charged to expense or other accounts
 
198

 
2,235

 
Deductions
 
(55
)
(1) 
(33,816
)
(2) 
Balance at December 31, 2013
 
5,846

 
46,048

 
Charged to expense or other accounts
 
1,040

 
21,420

 
Deductions
 
(1,300
)
(1) 
(982
)
(2) 
Balance at December 31, 2014
 
5,586

 
66,486

 
Charged to expense or other accounts
 
2,719

 
6,093

 
Deductions
 
(1,239
)
(1) 
(61,395
)
(2) 
Balance at December 31, 2015
 
$
7,066

 
$
11,184

 
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(1) Uncollectible accounts written off, net of recoveries.
(2) The net decrease in valuation allowance is primarily a result of net changes in cumulative book/tax timing differences and, with respect to activity for the year ended December 31, 2015, changes in judgment regarding the realizability of U.S. deferred tax assets.