Loss per share - Anti-dilutive securities (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Anti-dilutive securities
Anti-dilutive securities	21,768	18,323	20,748	18,616
Restricted Stock Units
Anti-dilutive securities
Anti-dilutive securities	5,518		2,774
Stock options
Anti-dilutive securities
Anti-dilutive securities	7,625	7,841	7,690	8,134
Warrants | Preferred Stock
Anti-dilutive securities
Anti-dilutive securities		509	118	509
Warrants | Common Stock
Anti-dilutive securities
Anti-dilutive securities	8,625		7,852
Profits interests
Anti-dilutive securities
Anti-dilutive securities		9,973	2,314	9,973