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Share Based Payments Stock-Based Compensation Expense and Related Tax Benefits Recognized (Details) - USD ($)
$ in Thousands
3 Months Ended
May 31, 2016
May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based compensation expense $ 856 $ 2,104
Station operating expenses    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based compensation expense 337 724
Corporate expenses    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based compensation expense $ 519 $ 1,380