Annual report pursuant to Section 13 and 15(d)

Debt (Details 2)

v2.4.0.8
Debt (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2013
period
Dec. 31, 2012
Dec. 31, 2011
Schedule on basis of which debt matures      
2014 $ 89,483,000    
2015 395,969,000 [1]    
2016 279,339,000    
2017 405,615,000 [2]    
2018 1,374,000    
Thereafter 763,938,000    
Total 1,935,718,000 [3]    
Debt maturing in 2015 that may be extended for two one year periods 250,000,000    
Number Of Extension Option Periods For Year Two Long-term Debt Maturities Repayments of Principal 2    
Extension option period for portion of debt maturing in 2015 (in years) 1 year    
Debt maturing in 2017 that may be extended for a one year period 250,000,000    
Extension option period for portion of debt maturing in 2017 (in years) 1 year    
Net discounts 8,000,000    
Capitalized interest costs $ 8,800,000 $ 13,900,000 $ 17,400,000
[1] Includes $250.0 million that may be extended for two one-year periods at our option, subject to certain conditions.
[2] ncludes $250.0 million that may be extended for one year at our option, subject to certain conditions.
[3] Represents scheduled principal amortization and maturities only and therefore excludes net discounts of $8.0 million.