Quarterly report pursuant to Section 13 or 15(d)

Transportation and Distribution Revenue - Additional Information (Details)

v3.20.2
Transportation and Distribution Revenue - Additional Information (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2020
USD ($)
dekatherm
Oct. 01, 2020
dekatherm
Dec. 31, 2019
USD ($)
Disaggregation of Revenue [Line Items]      
Recognized performance obligations quarterly $ 138    
Remaining performance obligation 54,100    
Contract asset balance $ 1,000   $ 206
Spire      
Disaggregation of Revenue [Line Items]      
Firm capacity (in dekatherms) | dekatherm 62,800    
Spire | Subsequent Event      
Disaggregation of Revenue [Line Items]      
Firm capacity (in dekatherms) | dekatherm   145,600