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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Schedule of Calculation of Basic and Diluted Earnings per Share The calculation of basic and diluted earnings per share was as follows (in thousands, except share and per share data):
 Three Months Ended June 30,Six Months Ended June 30,
 2022202120222021
Net loss attributable to common stockholders$(13,053)$(13,929)$(38,937)$(31,968)
Weighted-average common shares outstanding107,511,660 102,935,213 106,585,684 102,157,146 
Basic and diluted net loss per share$(0.12)$(0.14)$(0.37)$(0.31)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share The following is a summary of outstanding anti-dilutive potential common stock that was excluded from diluted net loss per share attributable to stockholders in the following periods:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands) 2022202120222021
2025 Notes14,341 14,341 14,341 14,341 
Warrants2,500 2,500 2,500 2,500 
Non-qualified stock options 8,693 8,571 8,521 8,571 
Restricted stock units 1,443 420 1,433 420 
Employee stock purchase plan355 20 355 20 
     Total27,332 25,852 27,150 25,852