XML 121 R105.htm IDEA: XBRL DOCUMENT v3.22.0.1
SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT 4 (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Note payable to banks      
Line of credit facility, current borrowing capacity $ 200,000,000    
Parent      
Note payable to banks      
Line of credit facility, current borrowing capacity 30,000,000    
Notes receivable, related parties 26,000,000 $ 6,000,000  
Notes payable, related parties $ 0    
Syndicated revolving credit facility      
Note payable to banks      
Variable rate basis LIBOR    
Syndicated revolving credit facility | Minimum      
Note payable to banks      
Interest coverage ratio 3.25    
Syndicated revolving credit facility | Maximum      
Note payable to banks      
Total funded debt ratio 0.65    
Parent Company      
Note payable to banks      
Line of credit facility, current borrowing capacity $ 200,000,000    
Parent Company | Syndicated revolving credit facility      
Note payable to banks      
Interest coverage ratio 8.21    
Total funded debt ratio 0.47    
Parent Company | Syndicated revolving credit facility | Minimum      
Note payable to banks      
Interest coverage ratio 3.25    
Total funded debt ratio 0.65    
Parent Company | Syndicated revolving credit facility | Maximum      
Note payable to banks      
Total funded debt ratio 1.00    
Parent Company | Syndicated revolving credit facility | Letters of credit      
Note payable to banks      
Maximum borrowing capacity $ 25,000,000    
Letter of credit, amount $ 455,000    
Letter of credit fee (as a percent) 0.65%    
Subsidiaries      
Note payable to banks      
Dividends paid $ (38,300,000) $ (47,300,000) $ (42,700,000)