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Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Accounting Policies [Abstract] |
Financing Receivable, Allowance for Credit Loss | Details of the Company's expected credit losses were as follows:
| Electric | Natural gas distribution | Pipeline | Construction materials and contracting | Construction services | Total
| (In thousands)
At December 31, 2020 | $ | 899 |  | $ | 2,571 |  | $ | 2 |  | $ | 6,164 |  | $ | 5,722 |  | $ | 15,358 |
Current expected credit loss provision* | 1,099 |  | 2,188 |  | — |  | 68 |  | (2,250) |  | 1,105 |
Less write-offs charged against the allowance | 2,139 |  | 4,072 |  | — |  | 826 |  | 1,032 |  | 8,069 |
Credit loss recoveries collected | 410 |  | 819 |  | — |  | — |  | 93 |  | 1,322 |
At December 31, 2021 | 269 |  | 1,506 |  | 2 |  | 5,406 |  | 2,533 |  | 9,716 |
Current expected credit loss provision | 1,325 |  | 4,084 |  | — |  | 538 |  | 186 |  | 6,133 |
Less write-offs charged against the allowance | 1,625 |  | 4,913 |  | — |  | 467 |  | 625 |  | 7,630 |
Credit loss recoveries collected | 406 |  | 938 |  | — |  | — |  | 68 |  | 1,412 |
At December 31, 2022 | $ | 375 |  | $ | 1,615 |  | $ | 2 |  | $ | 5,477 |  | $ | 2,162 |  | $ | 9,631 |
Contract receivable retainage | Amounts representing balances billed but not paid by customers under retainage provisions in contracts at December 31 were as follows:
| 2022 | 2021
| (In thousands)
Short-term retainage* | $ | 120,333 |  | $ | 70,600 |
Long-term retainage** | 19,511 |  | 10,742 |
Total retainage | $ | 139,844 |  | $ | 81,342 |
* Expected to be paid within 12 months or less and included in receivables, net. ** Included in noncurrent assets - other.
Inventories | Inventories at December 31 consisted of:
| 2022 | 2021
| (In thousands)
Aggregates held for resale | $ | 199,110 |  | $ | 184,363 |
Asphalt oil | 68,609 |  | 57,002 |
Materials and supplies | 40,056 |  | 30,629 |
Merchandise for resale | 40,296 |  | 28,501 |
Natural gas in storage (current) | 22,533 |  | 18,867 |
Other | 16,921 |  | 16,247 |
Total | $ | 387,525 |  | $ | 335,609 |
AFUDC and interest capitailized | The amount of AFUDC for the years ended December 31 was as follows:
| 2022 | 2021 | 2020
| (In thousands)
AFUDC - borrowed | $ | 2,236 |  | $ | 2,833 |  | $ | 2,640 |
AFUDC - equity | $ | 2,165 |  | $ | 6,961 |  | $ | 1,270 |
Schedule of earnings per share reconciliation | A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculations follows:
| 2022 |  | 2021 |  | 2020 |
| (In thousands)
Weighted average common shares outstanding - basic | 203,358 |  | 202,076 |  | 200,502 |
Effect of dilutive performance share awards | 104 |  | 307 |  | 69 |
Weighted average common shares outstanding - diluted | 203,462 |  | 202,383 |  | 200,571 |
Shares excluded from the calculation of diluted earnings per share | 14 |  | — |  | 164 |

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