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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Comprehensive income (loss):    
Net income$ 112,977$ 29,826$ 827,796$ 97,771
Other comprehensive (loss) - derivative instruments:    
Unrealized holding (losses) arising during the period(105,248)(37,726)(130,367)(123,472)
Accumulated other comprehensive income9519142,8422,379
Other comprehensive income (loss) - other instruments:    
Unrealized holding gains (losses) arising during the period(182)14311(52)
Other comprehensive (loss)(104,479)(36,798)(127,214)(121,145)
Comprehensive income (loss)8,498(6,972)700,582(23,374)
Comprehensive (income) attributable to Noncontrolling Interests(5,129)(1,043)(36,693)(3,544)
Comprehensive income (loss) attributable to controlling interests$ 3,369$ (8,015)$ 663,889$ (26,918)