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Rates and Other Regulatory Activities Rates and Regulatory Activities (Tables) | 3 Months Ended
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Mar. 31, 2022
Rates and Regulatory Activities [Abstract] |
Summary of Effects of Federal Tax Reform on Regulated Businesses [Table Text Block] | The following table summarizes the regulatory liabilities related to accumulated deferred taxes ("ADIT") associated with TCJA for our regulated businesses as of March 31, 2022 and December 31, 2021:
|  | Amount (in thousands) |  |
Operation and Regulatory Jurisdiction |  | March 31, 2022 | December 31, 2021 | Status |
Eastern Shore (FERC) |  | $34,190 | $34,190 | Will be addressed in Eastern Shore's next rate case filing. |
Delaware Division (Delaware PSC) |  | $12,551 | $12,591 | PSC approved amortization of ADIT in January 2019. |
Maryland Division (Maryland PSC) |  | $3,806 | $3,840 | PSC approved amortization of ADIT in May 2018. |
Sandpiper Energy (Maryland PSC) |  | $3,641 | $3,656 | PSC approved amortization of ADIT in May 2018. |
Chesapeake Florida Gas Division/Central Florida Gas (Florida PSC) |  | $7,986 | $8,032 | PSC issued order authorizing amortization and retention of net ADIT liability by the Company in February 2019. |
FPU Natural Gas (excludes Fort Meade and Indiantown) (Florida PSC) |  | $19,086 | $19,189 | Same treatment on a net basis as Chesapeake Florida Gas Division (above). |
FPU Fort Meade and Indiantown Divisions (Florida PSC) |  | $268 | $271 | Same treatment on a net basis as Chesapeake Florida Gas Division (above). |
FPU Electric (Florida PSC) |  | $5,176 | $5,237 | In January 2019, PSC issued order approving amortization of ADIT through purchased power cost recovery, storm reserve and rates. |
Elkton Gas (Maryland PSC) |  | $1,091 | $1,091 | PSC approved amortization of ADIT in March 2018. |

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