Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Derivative Instruments, Gain (Loss) - Interest Rate Derivatives, Not Designated (Details)

v2.4.0.8
Financial Instruments - Derivative Instruments, Gain (Loss) - Interest Rate Derivatives, Not Designated (Details) (Not Designated as Hedging Instrument [Member], Interest Rate Contract [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
   
Derivative [Line Items]    
Increase (Decrease) in Fair Value of Derivative Instruments, Not Designated as Hedging Instruments $ (34,479) $ (17,983)