Annual report pursuant to Section 13 and 15(d)

Debt (Narrative) (Details)

v2.4.0.8
Debt (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
May 31, 2011
5.75% Senior Notes [Member]
Nov. 30, 2012
5.75% Senior Notes [Member]
Dec. 31, 2013
Non-recourse Mortgage Note Due January 1, 2021 [Member]
Dec. 31, 2012
Mortgage Note Due August 31, 2014 [Member]
Debt Instrument [Line Items]              
Line of Credit Facility, Covenant Terms The agreement contains non-financial and financial covenants, including requirements of minimum fixed charge coverage ratios, maximum debt-to-EBITDA ratios and minimum tangible net worth. The Company is required not to exceed a maximum debt-to-EBITDA ratio of 3.0 to 1.0.            
Line of Credit Facility, Current Borrowing Capacity $ 500,000 $ 500,000          
Senior notes, at par 425,000 425,000 425,000 250,000 175,000    
Interest rate on notes, percentage       5.75% 5.75%    
Debt maturity date       Jun. 01, 2017   Jan. 01, 2021  
Senior notes, effective yield       6.00% 4.29%    
Debt Instrument, Unamortized Premium 6,052 6,052 7,823        
Fair value of swap agreements 9,576 9,576 16,304        
Variable rate of swap, percentage 3.74% 3.74%          
Revolving credit facility, maximum borrowing capacity 500,000 500,000          
Revolving credit facility, due date   Jun. 01, 2018          
Line of Credit Facility, Amount Outstanding 150,000 150,000          
Letters of credit outstanding amount 28,757 28,757          
Letters of credit bore interest 0.51% 0.51%          
Notes Payable           72,785 8,700
Mortgage note non-recourse interest rate           5.14%  
Net Book Value Of Collateralized Properties           160,246  
Weighted average interest rate of outstanding borrowings 3.31% 3.31%          
Fair value of outstanding debt 672,529 672,529 543,611        
Surety Bonds $ 102,568 $ 102,568