Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Fair Value and Carrying Value of Fixed Rate Long-Term Debt (Details)

v3.19.3.a.u2
Fair Value Measurements - Fair Value and Carrying Value of Fixed Rate Long-Term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Mar. 10, 2017
May 09, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term Debt, Carrying Value $ 706,886 $ 945,083    
5.0% Notes        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term Debt, Fair Value 0 262,515    
Long-term Debt, Carrying Value 0 289,273    
Stated interest rate on debt agreement       5.00%
6.125% Notes        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term Debt, Fair Value 261,250 216,250    
Long-term Debt, Carrying Value $ 250,000 $ 250,000    
Stated interest rate on debt agreement 6.125% 6.125% 6.125%  
Mortgage Notes        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term Debt, Fair Value $ 195,962 $ 218,402    
Long-term Debt, Carrying Value 194,535 215,196    
Other        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term Debt, Fair Value 0 20,437    
Long-term Debt, Carrying Value $ 0 $ 20,588