Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Long-Term Debt (Details)

v3.21.2
Long-Term Debt - Long-Term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Mar. 10, 2017
Debt Instrument [Line Items]      
Subtotal $ 697,236 $ 727,930  
Debt issuance costs (10,843) (7,863)  
Total debt 686,393 720,067  
Less current maturities (51,681) (68,244)  
Long-term debt 634,712 651,823  
Mortgage notes      
Debt Instrument [Line Items]      
Mortgage notes to finance companies - fixed rate, bearing interest from 3.51% to 7.03% 204,746 212,135  
Mortgage notes to finance companies - variable rate, bearing interest at 1.50 to 2.90 percentage points above one-month or three-month LIBOR 147,038 164,889  
Subtotal $ 351,800    
Mortgage notes | Minimum      
Debt Instrument [Line Items]      
Mortgage notes to finance companies-fixed rate, percentage 3.51%    
Mortgage notes to finance companies-variable rate, percentage 1.50%    
Mortgage notes | Maximum      
Debt Instrument [Line Items]      
Mortgage notes to finance companies-fixed rate, percentage 7.03%    
Mortgage notes to finance companies-variable rate, percentage 2.90%    
TwoThousandSixteenRevolvingCreditFacilityMember      
Debt Instrument [Line Items]      
2016 Revolving Credit Facility $ 0 $ 0  
Interest rate 2.50% 2.25%  
5.0% Senior Subordinate Notes due 2023      
Debt Instrument [Line Items]      
Stated interest rate 5.00%    
6.125% Senior Subordinate Notes due 2027      
Debt Instrument [Line Items]      
Senior Subordinated Notes $ 250,000 $ 250,000  
Total debt $ 250,000 250,000  
Stated interest rate 6.125%   6.125%
2019 Mortgage Facility [Member]      
Debt Instrument [Line Items]      
Senior Subordinated Notes $ 95,452 $ 100,906