Summary of Significant Accounting Policies - Liquidity and Management's Plan (Details) $ in Thousands	1 Months Ended		6 Months Ended
	Mar. 31, 2021 USD ($) shares	Mar. 31, 2020 item	Jun. 30, 2021 USD ($)	Jan. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Accounting Policies [Abstract]
Number of reporting units | item		3
Covenant, minimum liquidity				$ 200,000
Proceeds from debt and equity financing	$ 2,700,000
Repayment and extinguishment of debt, amount	$ 1,500,000
Cash and cash equivalents			$ 2,750,140		$ 3,300,482
Equity offering shares | shares	52,577,947
Substantial Doubt about Going Concern, within One Year [true false]			false