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SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) (Tax Valuation Allowance, USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Tax Valuation Allowance
      
Changes in Valuation and Qualifying Accounts      
Balance at Beginning of Period $ 140,982 $ 75,413 $ 150,932
Charged (Credited) to Operations 0 0 0
Charged to Other Account 65,482 [1] 65,569 [1] 177 [1]
Charges Utilized 0 0 (75,696)
Balance at End of Period $ 206,464 $ 140,982 $ 75,413
[1] Amounts not charged (credited) to operations are charged (credited) to other comprehensive income or deferred tax assets (liabilities).