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Stock-based compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Share Based Compensation Restricted Stock Units Award Activity The following table presents a summary of our RSU activity:
RSUs
(in number
of shares)		Weighted
average
grant-date
fair value
Balance as of January 1, 20201,149,744$12.08 
Granted1,409,680$7.89 
Vested(419,367)$10.95 
Cancelled(460,851)$10.32 
Balance as of December 31, 20201,679,206$9.33 
Granted723,908$12.56 
Vested(1,001,635)$12.12 
Cancelled(136,776)$10.49 
Balance as of December 31, 20211,264,703$9.60 
Granted622,781$11.36 
Vested(1,021,791)$7.30 
Cancelled(195,933)$11.22 
Balance as of December 31, 2022669,760$10.74 
Summary of Stock Option Activity The following table presents a summary of our stock option activity:
Options
(in number
of shares)		Weighted
average
exercise
price		Aggregate
intrinsic
value
Balance as of January 1, 20202,537,888$17.50 $— 
Exercised(33,133)$11.31 $— 
Forfeited / Cancelled(1,685,242)$17.05 $— 
Balance as of December 31, 2020819,513$9.11 $— 
Exercised(145,485)$11.00 $— 
Forfeited / Cancelled(46,272)$12.40 $— 
Balance as of December 31, 2021627,756$14.00 $— 
Exercised(48,172)$6.41 $— 
Forfeited / Cancelled(88,527)$11.28 $— 
Balance as of December 31, 2022491,057$9.66 $— 
Fully vested as of December 31, 2022491,057$9.66 $—