Annual report pursuant to Section 13 and 15(d)

Limited Partnership - Additional Information (Details)

v3.22.0.1
Limited Partnership - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 21, 2020
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]      
Payment To Purchase Of Units $ 3.0    
Total Consideration     $ 98.0
GPMP Supply Agreement [Member]      
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]      
Fuel supply agreement period 10 years    
Ownership [Member] | GPMP Supply Agreement [Member]      
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]      
Minority Interest Ownership Percentage By Parent 99.80% 99.70%  
Limited partnership interests owned by third parties 19.30%    
Limited partnership interests     0.29%