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Debt - Narrative (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 16, 2019
USD ($)
Nov. 27, 2019
USD ($)
Jul. 02, 2019
Aug. 23, 2012
USD ($)
Jun. 27, 2012
USD ($)
Aug. 25, 2010
USD ($)
Mar. 31, 2018
USD ($)
debt_extension
Mar. 31, 2018
USD ($)
debt_extension
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 30, 2014
USD ($)
Apr. 30, 2013
USD ($)
Debt Instrument [Line Items]                          
Loss on extinguishment of debt                 $ 7,188,000 $ 0 $ 0    
Construction loan             $ 34,900,000 $ 34,900,000          
London Interbank Offered Rate (LIBOR) | Minimum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.90%        
London Interbank Offered Rate (LIBOR) | Maximum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 1.50%        
Base Rate | Minimum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.00%        
Base Rate | Maximum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.50%        
2012 Special Cash Dividend | 2012 Special Cash Dividend                          
Debt Instrument [Line Items]                          
Payments of special dividends       $ 600,700,000                  
Construction Loan                          
Debt Instrument [Line Items]                          
Debt instrument, extension, term             1 year            
Debt issuance costs, net                 $ 900,000        
Debt instrument effective interest rate                 6.23% 6.70%      
Number of loan extensions | debt_extension             2 2          
Interest costs capitalized                 $ 900,000        
Construction Loan | London Interbank Offered Rate (LIBOR)                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate               4.35% 0.435%        
Collateralized Mortgage                          
Debt Instrument [Line Items]                          
Debt instrument stated interest rate                       7.26%  
Debt instrument effective interest rate                 4.57% 4.57%      
Mortgage obligation                       $ 9,500,000  
Debt instrument, future balloon payment                       6,900,000  
Debt instrument, unamortized premium                       $ (1,200,000)  
Economic Development Loans                          
Debt Instrument [Line Items]                          
Debt instrument stated interest rate                 3.00%        
Debt instrument effective interest rate                 3.00% 3.00%      
Economic development agreements - total advances agreed upon                         $ 4,400,000
Economic development agreements - term                 10 years        
$400 Million Senior Note | Revolving Credit Facilities                          
Debt Instrument [Line Items]                          
Debt instrument, extension, term     1 year                    
$400 Million Senior Note | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, face amount   $ 400,000,000               $ 400,000,000      
Senior notes, discount   $ 2,400,000                      
Debt instrument stated interest rate   3.70%                      
Debt instrument effective interest rate   3.88%             3.88%        
$400 Million Senior Note | Senior Notes | Treasury Rate                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate   0.30%                      
$600 Million Senior Note | Revolving Credit Facilities                          
Debt Instrument [Line Items]                          
Line of credit maximum borrowing capacity                 $ 600,000,000        
Debt instrument, extension, term                 1 year        
Debt instrument additional borrowing capacity                 $ 250,000,000        
Total leverage ratio (not more than)                 2.5        
$600 Million Senior Note | Revolving Credit Facilities | Minimum                          
Debt Instrument [Line Items]                          
Credit facility, commitment fee percentage                 0.075%        
Fixed charge coverage ratio (not less than)                 2.5        
$600 Million Senior Note | Revolving Credit Facilities | Maximum                          
Debt Instrument [Line Items]                          
Total leverage ratio (not more than)                 4.5        
Credit facility, commitment fee percentage                 0.25%        
$600 Million Senior Note | Revolving Credit Facilities | Total Leverage Ratio exceeds 5.50 to 1.00 | Maximum                          
Debt Instrument [Line Items]                          
Total leverage ratio (not more than)                 5.5        
$600 Million Senior Note | Revolving Credit Facilities | Alternative Currency Loans                          
Debt Instrument [Line Items]                          
Line of credit maximum borrowing capacity                 $ 35,000,000        
$600 Million Senior Note | Revolving Credit Facilities | Swingline Loans                          
Debt Instrument [Line Items]                          
Line of credit maximum borrowing capacity                 25,000,000        
$600 Million Senior Note | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, face amount                 $ 600,000,000        
Debt instrument effective interest rate                 2.76% 3.50%      
$600 Million Senior Note | Senior Notes | London Interbank Offered Rate (LIBOR) | Minimum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.90%        
$600 Million Senior Note | Senior Notes | London Interbank Offered Rate (LIBOR) | Maximum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 1.50%        
$600 Million Senior Note | Senior Notes | Base Rate | Minimum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.00%        
$600 Million Senior Note | Senior Notes | Base Rate | Maximum                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.50%        
$400 Million Senior Notes | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, face amount         $ 400,000,000       $ 400,000,000 $ 400,000,000      
Debt instrument stated interest rate         5.75%                
Debt instrument effective interest rate         6.00%       6.00% 6.00%      
$400 Million Senior Notes | Senior Notes | Treasury Rate                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate         0.50%                
$400 Million Senior Notes | Senior Notes | Debt Instrument Redemption                          
Debt Instrument [Line Items]                          
Debt instrument, percentage of principal amount to be redeemed   100.00%                      
$400 Million Senior Notes | Senior Notes | Debt Instrument Redemption | Treasury Rate                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.50%        
$250 Million Senior Notes | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, face amount           $ 250,000,000     $ 250,000,000 $ 250,000,000      
Senior notes, discount           $ 600,000              
Debt instrument stated interest rate           5.70%              
Debt instrument effective interest rate           6.19%       6.19%      
Repayments of debt $ 256,300,000                        
Loss on extinguishment of debt                 7,200,000        
Debt instrument, unamortized premium                 $ (6,300,000)        
$250 Million Senior Notes | Senior Notes | Treasury Rate                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate           0.45%              
$250 Million Senior Notes | Senior Notes | Debt Instrument Redemption | Treasury Rate                          
Debt Instrument [Line Items]                          
Debt instrument, basis spread on variable rate                 0.45%