XML 37 R50.htm IDEA: XBRL DOCUMENT v3.20.1
Debt (Details) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Line of Credit      
Debt      
Credit facility, total available credit $ 304,000,000.0    
Revolving Credit Facility      
Debt      
Line of credit and notes payable 200,000 $ 700,000 $ 1,500,000
Revolving Credit Facility | Credit Facility      
Debt      
Credit facility, total available credit 150,000,000.0    
Maximum borrowing capacity   $ 300,000,000.0  
Remaining borrowing capacity $ 153,800,000