Quarterly report pursuant to Section 13 or 15(d)

Transportation and Distribution Revenue - Additional Information (Details)

v3.21.2
Transportation and Distribution Revenue - Additional Information (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
dekatherm
Sep. 30, 2020
dekatherm
Disaggregation of Revenue [Line Items]      
Contract asset balance $ 286 $ 363  
Capitalized Contract Cost, Net 1,000    
Spire      
Disaggregation of Revenue [Line Items]      
Firm capacity (in dekatherms) | dekatherm   145,600 62,800
Decline in contract liability per quarter 146    
Remaining performance obligation $ 65,200