XML 44 R71.htm IDEA: XBRL DOCUMENT v2.4.0.6
Derivative Instruments (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Interest rate swap agreements  
Fair value of cross currency swap agreement $ (144,463)
United states dollar-denominated interest rate swaps 1 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 423,748
Fair value of cross currency swap agreement (119,895)
Weighted-Average Remaining Term (Years) 25.1
Fixed Interest Rate (%) 4.90%
United states dollar denominated interest rate swaps 2 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 209,812
Fair value of cross currency swap agreement (60,441)
Weighted-Average Remaining Term (Years) 7.2
Fixed Interest Rate (%) 6.20%
United states dollar denominated interest rate swaps 3 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 90,000
Fair value of cross currency swap agreement (18,183)
Weighted-Average Remaining Term (Years) 6.7
Fixed Interest Rate (%) 4.90%
United states dollar denominated interest rate swaps 4 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 100,000
Fair value of cross currency swap agreement (21,755)
Weighted-Average Remaining Term (Years) 5.0
Fixed Interest Rate (%) 5.30%
United states dollar denominated interest rate swaps 5 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 218,750
Fair value of cross currency swap agreement (57,996)
Weighted-Average Remaining Term (Years) 17.0
Fixed Interest Rate (%) 5.20%
United states dollar denominated interest rate swaps 6 [Member]
 
Interest rate swap agreements  
Interest Rate Index LIBOR
Principal Amount 470,199
Fair value of cross currency swap agreement 159,603
Weighted-Average Remaining Term (Years) 25.1
Fixed Interest Rate (%) 4.80%
Euro denominated interest rate swaps [Member]
 
Interest rate swap agreements  
Interest Rate Index EURIBOR
Principal Amount 348,905
Fair value of cross currency swap agreement $ (25,796)
Weighted-Average Remaining Term (Years) 12.5
Fixed Interest Rate (%) 3.10%