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Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

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 January 1, 2020			$	328		$	1,056		$	—		$	5,357		$	1,756		$	8,497
Current expected credit loss provision			1,517			3,187			2			1,447			4,832			10,985
Less write-offs charged against the allowance			1,289			2,511			—			640			866			5,306
Credit loss recoveries collected			343			839			—			—			—			1,182
At December 31, 2020			$	899		$	2,571		$	2		$	6,164		$	5,722		$	15,358

Contract receivable retainage

Amounts representing balances billed but not paid by customers under retainage provisions in contracts at December 31 were as follows:

			2020			2019
			(In thousands)
Short-term retainage*			$	100,054		$	75,590
Long-term retainage**			2,761			14,228
Total retainage			$	102,815		$	89,818

*    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:

			2020			2019
			(In thousands)
Aggregates held for resale			$	175,782		$	147,723
Asphalt oil			28,238			41,912
Materials and supplies			25,142			22,512
Merchandise for resale			21,087			22,232
Natural gas in storage (current)			21,919			22,058
Other			18,999			21,970
Total			$	291,167		$	278,407

AFUDC and interest capitailized

The amount of AFUDC for the years ended December 31 was as follows:

			2020			2019			2018
			(In thousands)
AFUDC - borrowed			$	2,640		$	2,807		$	2,290
AFUDC - equity			$	1,270		$	698		$	1,897

Schedule of earnings per share reconciliation

A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculation was as follows:

			2020			2019			2018
			(In thousands)
Weighted average common shares outstanding - basic			200,502			198,612			195,720
Effect of dilutive performance share awards			69			14			430
Weighted average common shares outstanding - diluted			200,571			198,626			196,150
Shares excluded from the calculation of diluted earnings per share			164			164			10

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