| 
           Fair Value Measurements (Details) (Fair value measurement on a recurring basis, USD $) 
        In Thousands  | 
        
           Jun. 30, 2011 
         | 
      
|---|---|
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) 
         | 
        |
| Assets: | |
| Common stock | $ 520 | 
| Assets | 9,017 | 
| Liabilities: | |
| Deferred compensation plan liability | 8,497 | 
| Liabilities | 8,497 | 
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 6,380 | 
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Shares 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 1,175 | 
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) | Preferred Shares 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 324 | 
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 418 | 
| 
           Quoted Prices in Active Markets for Identical Assets (Level 1) | Other. 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 200 | 
| 
           Significant Other Observable Inputs (Level 2) 
         | 
        |
| Assets: | |
| Interest rate derivative | 80 | 
| Warrants to purchase common shares in KEYW | 327 | 
| Assets | 407 | 
| Liabilities: | |
| Interest rate derivatives | 10,020 | 
| Liabilities | 10,020 | 
| 
           Total Estimated Fair Value 
         | 
        |
| Assets: | |
| Common stock | 520 | 
| Interest rate derivative | 80 | 
| Warrants to purchase common shares in KEYW | 327 | 
| Assets | 9,424 | 
| Liabilities: | |
| Deferred compensation plan liability | 8,497 | 
| Interest rate derivatives | 10,020 | 
| Liabilities | 18,517 | 
| 
           Total Estimated Fair Value | Mutual funds 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 6,380 | 
| 
           Total Estimated Fair Value | Common Shares 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 1,175 | 
| 
           Total Estimated Fair Value | Preferred Shares 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 324 | 
| 
           Total Estimated Fair Value | Cash and cash equivalents 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | 418 | 
| 
           Total Estimated Fair Value | Other. 
         | 
        |
| Assets: | |
| Marketable securities in deferred compensation plan | $ 200 |