XML 30 R77.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note O - Commitments, Contingencies and Other (Detail) - (Table 4) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Cost Basis [Member]
Dec. 31, 2010
Cost Basis [Member]
Dec. 31, 2009
Cost Basis [Member]
Dec. 31, 2011
Accumulated Amortization [Member]
Dec. 31, 2010
Accumulated Amortization [Member]
Dec. 31, 2009
Accumulated Amortization [Member]
Dec. 31, 2008
Accumulated Amortization [Member]
Dec. 31, 2011
Total [Member]
Dec. 31, 2010
Total [Member]
Dec. 31, 2009
Total [Member]
Balance at beginning of year     $ 39,211 $ 24,911 $ 24,172              
Acquisitions and purchase price adjustments     36,982 14,300 739              
Balance at end of year     76,193 39,211 24,911              
Balance at beginning of year           598 598 598 598      
Balance at end of year           598 598 598 598      
Goodwill $ 75,595 $ 38,613               $ 75,595 $ 38,613 $ 24,313