Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Derivative Instruments and Hedging Activities (Details)

v3.20.2
Long-Term Debt - Derivative Instruments and Hedging Activities (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 09, 2018
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Derivatives, Fair Value [Line Items]            
Derivative Cash Premium Paid         $ 2,500,000 $ 2,800,000
Derivative Instrument, Unamortized Premium     $ 2,600,000   3,700,000  
Incremental interest expense   $ 300,000 0 $ 1,200,000    
Net benefit expected to be reclassified     $ 0      
Interest rate swap and interest rate cap | Derivative instruments and hedging activities            
Derivatives, Fair Value [Line Items]            
Fair value of derivative         $ 100,000  
Net cash proceeds $ 4,800,000