XML 39 R26.htm IDEA: XBRL DOCUMENT
v3.23.1

Regulatory Matters (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Regulated Operations [Abstract] |
Schedule of Regulatory Assets and Liabilities | We had the following regulatory assets and liabilities (in thousands):
| As of |  | As of |
| March 31, 2023 |  | December 31, 2022 |
Regulatory assets |  |  |  |
Winter Storm Uri (a) | $ | 253,835 |  | $ | 347,980 |
Deferred energy and fuel cost adjustments (b) |  | 79,020 |  |  | 72,580 |
Deferred gas cost adjustments (b) |  | 16,047 |  |  | 12,147 |
Gas price derivatives (b) |  | - |  |  | 8,793 |
Deferred taxes on AFUDC (b) |  | 7,482 |  |  | 7,333 |
Employee benefit plans and related deferred taxes (c) |  | 88,710 |  |  | 89,259 |
Environmental (b) |  | 1,341 |  |  | 1,343 |
Loss on reacquired debt (b) |  | 18,764 |  |  | 19,213 |
Deferred taxes on flow through accounting (b) |  | 74,022 |  |  | 69,529 |
Decommissioning costs (b) |  | 2,850 |  |  | 3,472 |
Other regulatory assets (b) |  | 19,798 |  |  | 21,332 |
Total regulatory assets |  | 561,869 |  |  | 652,981 |
Less current regulatory assets |  | (214,838 | ) |  | (260,312 | )
Regulatory assets, non-current | $ | 347,031 |  | $ | 392,669 |
Regulatory liabilities |  |  |  |
Deferred energy and gas costs (b) | $ | 106,030 |  | $ | 41,722 |
Employee benefit plan costs and related deferred taxes (c) |  | 33,839 |  |  | 34,258 |
Cost of removal (b) |  | 177,453 |  |  | 175,614 |
Excess deferred income taxes (c) |  | 248,126 |  |  | 254,833 |
Other regulatory liabilities (c) |  | 11,613 |  |  | 12,146 |
Total regulatory liabilities |  | 577,061 |  |  | 518,573 |
Less current regulatory liabilities |  | (110,100 | ) |  | (46,013 | )
Regulatory liabilities, non-current | $ | 466,961 |  | $ | 472,560 |
(a) Timing of Winter Storm Uri incremental cost recovery and associated carrying costs vary by jurisdiction. (b) Recovery or repayment of costs, but we are not 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.

X
- Definition Schedule of Regulatory Assets and Liabilities + References No definition available. + Details
Name: | bkh_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | bkh_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration