XML 41 R87.htm IDEA: XBRL DOCUMENT v2.4.0.6
Installments Payments of Term Loan Payable (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Debt Instrument [Line Items]    
Bank Syndicated Financing $ 115,000 $ 125,000
Term Loan
   
Debt Instrument [Line Items]    
Due in 2012 25,000  
Due in 2013 65,000  
Bank Syndicated Financing $ 90,000 $ 100,000