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Share Based Payments Stock-Based Compensation Expense and Related Tax Benefits Recognized (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense $ 1,661 $ 583 $ 3,765 $ 1,531
Tax benefit 0 (190) 0 (521)
Recognized stock-based compensation expense, net of tax 1,661 393 3,765 1,010
Station operating expenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense 521 68 1,245 470
Corporate expenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense $ 1,140 $ 515 $ 2,520 $ 1,061