Schedule I - Condensed Statements of Operations (Parent Company) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Revenues:        
Other income $ 949 [1] $ 1,795 [1] $ 4,214 $ 801
Investment Income, Net     2,976 4,539
Total revenues 200,325 165,505 672,888 462,266
Expenses:        
General and administrative expenses 38,606 28,483 120,444 94,757
Other expense 191 0   363
Total operating expenses 319,413 192,135 765,595 645,465
Loss from operations (119,088) (26,630) (92,707) (183,199)
Change in fair value of warrants expense (85,506) 2,237 80,328 2,909
Interest expense 1,175 7,815 35,990 23,155
Amortization of notes discount 13,660 5,712 21,118 15,913
(Gain) loss on derivative 0 (14,232) (93,751) 138,561
Net loss $ (48,417) $ (28,162) (136,392) (363,737)
Parent Company [Member]        
Revenues:        
Other income     3,685 3,396
Investment Income, Net       46
Total revenues     3,685 3,442
Expenses:        
General and administrative expenses     4,831 79
Other expense       363
Total operating expenses     4,831 442
Loss from operations     (1,146) 3,000
Change in fair value of warrants expense     80,328 2,909
Interest expense     35,556 23,155
Amortization of notes discount     21,118 15,913
(Gain) loss on derivative     (93,751) 138,561
Equity in net losses of consolidated subsidiaries     91,995 186,199
Net loss     $ (136,392) $ (363,737)
[1] In the first quarter of 2021, other income and investment income, net, were combined into a single line item for other income. Prior period balances have been revised to conform to the current period presentation.