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Derivative Instruments (Tables)
6 Months Ended
Jun. 30, 2011
Derivative Instruments  
Summary of the Effect of Derivative Instruments on the Consolidated Statements of Changes in Equity and Income
Three Months Ended June 30,     Six Months Ended June 30,  

Description

   2011     2010     2011     2010  

Interest Rate Swaps

        

Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)

     —          (12,905     (4,125     (16,022

Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)*

     —          (10,424     (4,722     (12,230

Amount of Gain (Loss) Recognized in Earnings on Derivative (Ineffective Portion)

     —          —          —          —     

Cross Currency Swaps

        

Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)

     (339     2,173        (1,479     1,004   

Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)**

     (286     (21     (499     (28

Amount of Gain (Loss) Recognized in Earnings on Derivative (Ineffective Portion)

     —          —          —          —     

Currency Forward Agreements

        

Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)

     (863     4,409        (7,777     3,160   

Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)***

     (52     —          (4,314     —     

Amount of Gain (Loss) Recognized in Earnings on Derivative (Ineffective Portion)

     —          —          —          —     

Total

        

Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)

     (1,202     (6,323     (13,381     (11,858

Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)

     (338     (10,445     (9,535     (12,258

Amount of Gain (Loss) Recognized in Earnings on Derivative (Ineffective Portion)

     —          —          —          —