Net income (loss) per share and net income (loss) attributable to common stockholders - Anti-dilutive shares (Details) - shares	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock options.
Anti-dilutive shares
Anti-dilutive shares not included in the computation of diluted income (loss) per share	29,293,014	32,139,614	52,198,603
Restricted Stock Units (RSUs) [Member]
Anti-dilutive shares
Anti-dilutive shares not included in the computation of diluted income (loss) per share	21,398,126	27,100,812	6,285,294

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration