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Regulatory Matters (Tables) | 9 Months Ended
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Sep. 30, 2020
Regulatory Assets and Liabilities Disclosure [Abstract] |
Schedule of Regulatory Assets and Liabilities | We had the following regulatory assets and liabilities (in thousands) as of:
| September 30, 2020 | December 31, 2019
Regulatory assets |  |
Deferred energy and fuel cost adjustments (a) | $ | 35,878 |  | $ | 34,088 |
Deferred gas cost adjustments (a) | 3,670 |  | 1,540 |
Gas price derivatives (a) | 499 |  | 3,328 |
Deferred taxes on AFUDC (b) | 7,683 |  | 7,790 |
Employee benefit plan costs and related deferred taxes (c) | 114,971 |  | 115,900 |
Environmental (a) | 1,417 |  | 1,454 |
Loss on reacquired debt (a) | 23,342 |  | 24,777 |
Renewable energy standard adjustment (a) | — |  | 1,622 |
Deferred taxes on flow through accounting (c) | 44,528 |  | 41,220 |
Decommissioning costs (b) | 9,421 |  | 10,670 |
Gas supply contract termination (a) | 4,027 |  | 8,485 |
Other regulatory assets (a) | 25,800 |  | 20,470 |
Total regulatory assets | 271,236 |  | 271,344 |
Less current regulatory assets | (49,493) |  | (43,282) |
Regulatory assets, non-current | $ | 221,743 |  | $ | 228,062 |
Regulatory liabilities |  |
Deferred energy and gas costs (a) | $ | 14,443 |  | $ | 17,278 |
Employee benefit plan costs and related deferred taxes (c) | 40,719 |  | 43,349 |
Cost of removal (a) | 169,426 |  | 166,727 |
Excess deferred income taxes (c) | 286,055 |  | 285,438 |
Other regulatory liabilities (c) | 16,956 |  | 23,860 |
Total regulatory liabilities | 527,599 |  | 536,652 |
Less current regulatory liabilities | (22,282) |  | (33,507) |
Regulatory liabilities, non-current | $ | 505,317 |  | $ | 503,145 |
__________ (a) Recovery of costs, but we are not allowed a rate of return. (b) In addition to recovery of costs, we are allowed a rate of return. (c) In addition to recovery or repayment of costs, we are allowed a return on a portion of this amount or a reduction in rate base.

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- Definition The entire disclosure for detailed information about regulatory assets and liabilities, including current and noncurrent assets created when regulatory agencies permit the deferral of costs to the balance sheet that would otherwise be required to appear on the company's income statement and would be charged against current expenses or revenues, as well as current and noncurrent liabilities created when regulatory agencies permit. [Table Text Block] + References No definition available. + Details
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