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Stock Compensation - Weighted Average Grant-Date Fair Value (Details)
12 Months Ended
Dec. 31, 2013
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average per share grant-date fair value of stock options $ 7.46
Stock Appreciation Rights (SARs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average per share grant-date fair value of SARs $ 7.45