Fair Value Measurements (Details) (Fair value measurement on a recurring basis, USD $) In Thousands	Sep. 30, 2011
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Common stock	$ 18,450
Assets	25,473
Liabilities:
Deferred compensation plan liability	7,023
Liabilities	7,023
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds
Assets:
Marketable securities in deferred compensation plan	5,393
Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Shares
Assets:
Marketable securities in deferred compensation plan	845
Quoted Prices in Active Markets for Identical Assets (Level 1) | Preferred Shares
Assets:
Marketable securities in deferred compensation plan	314
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents
Assets:
Marketable securities in deferred compensation plan	271
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:
Warrants to purchase common shares in KEYW	121
Assets	121
Liabilities:
Interest rate derivatives	30,629
Liabilities	30,629
Total Estimated Fair Value
Assets:
Common stock	18,450
Warrants to purchase common shares in KEYW	121
Assets	25,594
Liabilities:
Deferred compensation plan liability	7,023
Interest rate derivatives	30,629
Liabilities	37,652
Total Estimated Fair Value | Mutual funds
Assets:
Marketable securities in deferred compensation plan	5,393
Total Estimated Fair Value | Common Shares
Assets:
Marketable securities in deferred compensation plan	845
Total Estimated Fair Value | Preferred Shares
Assets:
Marketable securities in deferred compensation plan	314
Total Estimated Fair Value | Cash and cash equivalents
Assets:
Marketable securities in deferred compensation plan	271
Total Estimated Fair Value | Other.
Assets:
Marketable securities in deferred compensation plan	$ 200