Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Narrative (Details)

v3.20.2
Basis of Presentation - Narrative (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]                
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201613Member us-gaap:AccountingStandardsUpdate201613Member            
Adoption of ASU 2016-13 $ (953,367) $ (867,576) $ (873,737) $ (864,197) $ (860,918) $ (853,790) $ (621,538) $ (632,602)
Cumulative Effect, Period of Adoption, Adjustment                
Disaggregation of Revenue [Line Items]                
Adoption of ASU 2016-13   1,141            
Accumulated Deficit                
Disaggregation of Revenue [Line Items]                
Adoption of ASU 2016-13 $ 87,155 75,664 $ 89,065 $ 84,141 $ 79,254 $ 76,174 $ 77,067 $ 58,882
Accumulated Deficit | Cumulative Effect, Period of Adoption, Adjustment                
Disaggregation of Revenue [Line Items]                
Adoption of ASU 2016-13   $ 1,141