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Note 5 FAIR VALUE OF FINANCIAL INSTRUMENTS (Detail) - (Table 3) (Derivative Financial Instruments, Assets [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Derivative Financial Instruments, Assets [Member]
   
Balance at $ (16,676) $ (15,351)
Purchases, issuances, sales and settlements:    
Purchases 0 0
Issuances 0 0
Sales 0 0
Settlements 2,357 46
2,357 46
Total realized and unrealized gains and (losses) (1):    
Included in Other, net 3,468 (353)
Included in Other comprehensive income (loss) (1,955) 3,261
1,513 2,908
Transfers in and / or out of Level 3 0 0
Balance at $ (12,806) $ (12,397)