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Share Based Payments Stock-Based Compensation Expense and Related Tax Benefits Recognized (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 30, 2013
Nov. 30, 2012
Nov. 30, 2013
Nov. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense $ 471 $ 1,370 $ 3,553 $ 2,324
Tax benefit 0 0 0 0
Recognized stock-based compensation expense, net of tax 471 1,370 3,553 2,324
Station operating expenses
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense 4 331 1,470 778
Corporate expenses
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense $ 467 $ 1,039 $ 2,083 $ 1,546