XML 85 R70.htm IDEA: XBRL DOCUMENT v3.20.2
Indebtedness Credit Facility (Details) - USD ($)
9 Months Ended
Sep. 30, 2020
Dec. 20, 2019
Mar. 23, 2018
Line of Credit Facility [Line Items]      
Short-term Debt   $ 70,000,000.0  
Short-term Debt, Weighted Average Interest Rate, at Point in Time 3.91%    
Line of Credit Facility, Maximum Borrowing Capacity     $ 200,000,000
Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Indebtedness Weighted Average Remaining Maturity 1 year 3 months 18 days    
Minimum [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%    
Minimum [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Loans Receivable, Basis Spread on Variable Rate 2.75%    
Maximum [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.30%    
Maximum [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Loans Receivable, Basis Spread on Variable Rate 3.50%