XML 54 R39.htm IDEA: XBRL DOCUMENT v3.22.0.1
Unit-based Compensation (Tables)
12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of information regarding phantom unit awards
The following table summarizes information regarding phantom unit awards for the periods presented:
Number of UnitsWeighted-Average 
Grant Date Fair 
Value per Unit
Phantom units outstanding at December 31, 20181,431,064 $14.98 
Granted717,869 15.88 
Vested(301,329)13.06 
Forfeited(45,620)16.78 
Phantom units outstanding at December 31, 20191,801,984 $15.09 
Granted
741,963 12.55 
Vested
(223,658)17.27 
Forfeited
(182,332)15.36 
Phantom units outstanding at December 31, 20202,137,957 $14.88 
Granted
638,903 14.92 
Vested
(475,831)15.13 
Forfeited
(71,261)14.50 
Phantom units outstanding at December 31, 20212,229,768 $13.57