Change in Accounting Principle - Changes in Balance Sheet Items (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common units	$ 0		$ 45,122
Additional paid-in capital	7,749,463		25,036
Accumulated other comprehensive loss	(25,446)		(31,093)
Accumulated deficit	(4,921,561)		(4,107,927)
Total stockholders'/members’ equity (deficit)	$ 2,802,629	$ 3,275,125	(4,068,862)	$ (3,811,142)	$ (3,665,081)	$ (3,532,912)
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common units			54,950
Additional paid-in capital			25,036
Accumulated other comprehensive loss			(31,093)
Accumulated deficit			(4,117,755)
Total stockholders'/members’ equity (deficit)			$ (4,068,862)