XML 62 R51.htm IDEA: XBRL DOCUMENT v3.22.1
Share-based compensation (Tables)
3 Months Ended
Mar. 31, 2022
Share-based Payment Arrangement [Abstract]  
RSU Activity
The following table summarizes the RSU activity for the three months ended March 31, 2022:
Restricted Stock
Units
Weighted-average
grant date fair
value per share
Non-vested RSUs as of December 31, 2021
676,338 $13.49 
Granted12,196 29.89 
Vested(515,194)13.99 
Forfeited— — 
Non-vested RSUs as of March 31, 2022
173,340 $13.27 
Share-based Compensation Expense
The following table summarizes the share-based compensation expense for the Company’s RSUs recorded for the three months ended March 31, 2022 and 2021:
Three Months Ended March 31,
20222021
Operations and maintenance$$222 
Selling, general and administrative876 1,548 
Total share-based compensation expense$880 $1,770 
Schedule of Nonvested Performance-based Units Activity
Performance Share Units (“PSUs”)
During the first quarter of 2020 and 2021, the Company granted PSUs to certain employees and non-employees that contain a performance condition. Vesting is determined based on achievement of a performance metric for the year subsequent to the grant, and the number of shares that will vest can range from zero to a multiple of units granted. During the fourth quarter of 2021, the Company determined that the 2020 Grant will vest at a multiple of two, resulting in the recognition of all compensation cost associated with this award. As of March 31, 2022, the Company determined that it was not probable that the performance condition required for the 2021 Grant to vest would be achieved, and as such, no compensation expense has been recognized for this award.
PSUs GrantedUnits GrantedRange of VestingUnits Vested / Probable of Vesting
Unrecognized
Compensation
Cost(1)
Weighted Average
Remaining Vesting
Period
Q1 2020 ("2020 Grant")1,109,777
0 to 2,219,554
2,105,522$— 0
Q1 2021 ("2021 Grant")400,507
0 to 801,014
30,878 0.75 years
(1) Unrecognized compensation cost is based upon the maximum amount of shares that could vest.