XML 41 R134.htm IDEA: XBRL DOCUMENT v2.4.0.8
Schedule II - Valuation and Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Valuation and Qualifying Accounts Disclosure [Line Items]        
Balance, valuation allowance $ 765,023 $ 656,352 $ 773,714  
Allowance for doubtful trade accounts receivable [Member]
        
Valuation and Qualifying Accounts Disclosure [Line Items]        
Balance, valuation allowance 734 734 734 734
Charged to Cost and Expense 0 0 0  
Charged to Other Accounts 0 0 0  
Deductions 0 0 0  
Deferred tax asset - valuation allowance [Member]
        
Valuation and Qualifying Accounts Disclosure [Line Items]        
Balance, valuation allowance 765,023 656,352 773,714 714,423
Charged to Cost and Expense 0 0 0  
Charged to Other Accounts 108,671 (117,362) 59,291  
Deductions $ 0 $ 0 $ 0