Annual report pursuant to Section 13 and 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS - Derivative Gain Loss (Details 10)

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FAIR VALUE OF FINANCIAL INSTRUMENTS - Derivative Gain Loss (Details 10) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Cash flow hedges      
Gain (loss) on the ineffective portion    $ 483  
Gain (loss) immediately recognized at dedesignation (110) (7,036)  
Non-hedge derivatives gain (loss) 10,577 9,101  
Cash Flow Hedges | Other Income (Loss)
      
Cash flow hedges      
Gain (loss) on the ineffective portion    483 (917)
Cash Flow Hedges | Gain (Loss) on Sale of Investments and Other Income (Loss)
      
Cash flow hedges      
Gain (loss) immediately recognized at dedesignation (110) (7,036) (13,939)
Cash Flow Hedges | Interest Expense
      
Cash flow hedges      
Amount of gain (loss) reclassified from AOCI into income, related to effective portion (6,128) (30,631) (63,350)
Deferred hedge gain reclassified from AOCI into income, related to anticipated financings 67 61 58
Deferred hedge gain (loss) reclassified from AOCI into income, related to effective portion of dedesignated hedges (56) 1,189 2,259
Non-Hedge Derivatives | Other Income (Loss)
      
Cash flow hedges      
Non-hedge derivatives gain (loss) 10,577 9,101 3,284
Non-Hedge Derivatives | Interest Expense
      
Cash flow hedges      
Non-hedge derivatives gain (loss) $ (236)