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Share-Based Compensation Plans (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2015
USD ($)
plan
Mar. 31, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of share-based compensation plans | plan 2  
Share-based compensation expense $ (1,167) $ 87
SARs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period of share-based compensation awards 3 years  
Contractual term of share-based compensation awards 5 years  
Share-based compensation expense $ (1,200) $ 87
Unrecognized compensation cost related to unvested share-based compensation $ 1,200  
Period for recognition for unrecognized compensation cost related to unvested share-based compensation 3 years