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
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Mar. 31, 2020
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 $ (873,737) $ (867,576) $ (864,197) $ (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 $ 89,065 75,664 $ 84,141 $ 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