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Immaterial Restatement of Prior Period Financial Statements | 9 Months Ended
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Sep. 30, 2023
Accounting Changes and Error Corrections [Abstract] |
Immaterial Restatement of Prior Period Financial Statements | Immaterial Restatement of Prior Period Financial Statements Subsequent to the issuance of the Company's Consolidated Financial Statements for the year ended December 31, 2021, during the fourth quarter of 2022, the Company identified an immaterial error for a regulatory liability and corresponding decreases to operating revenue and deferred income taxes that were not recorded in 2019 associated with customer refunds. The error does not impact customer billings or cash refunded to customers. The Company corrected the error in the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, through a restatement of the opening retained earnings balance for the year ended December 31, 2020. The Company believes the error is immaterial to the previously issued Financial Statements for prior periods. The corrections to the Company’s retained earnings and total equity as of September 30, 2022, June 30, 2022, and March 31, 2022, reported in note 4, were as follows:
| As of September 30, 2022
| As Previously Reported |  | Corrections |  | As Corrected
| (In thousands)
Retained earnings | $ | 561,907 |  |  | $ | (11,063) |  |  | $ | 550,844 |
Total equity | $ | 1,278,332 |  |  | $ | (11,063) |  |  | $ | 1,267,269 |
| As of June 30, 2022
| As Previously Reported |  | Corrections |  | As Corrected
| (In thousands)
Retained earnings | $ | 519,625 |  |  | $ | (11,063) |  |  | $ | 508,562 |
Total equity | $ | 1,207,306 |  |  | $ | (11,063) |  |  | $ | 1,196,243 |
| As of March 31, 2022
| As Previously Reported |  | Corrections |  | As Corrected
| (In thousands)
Retained earnings | $ | 513,593 |  |  | $ | (11,063) |  |  | $ | 502,530 |
Total equity | $ | 1,169,878 |  |  | $ | (11,063) |  |  | $ | 1,158,815 |

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- Definition The entire disclosure for reporting error correction. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-7 + Details
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