Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

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
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

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

* Expected to be paid within 12 months or less and included in receivables, net.

** Included in noncurrent assets - other.

Inventories at December 31 consisted of:


	2021		2020
	(In thousands)
Aggregates held for resale	$	184,363	$	175,782
Asphalt oil	57,002		28,238
Materials and supplies	30,629		25,142
Merchandise for resale	28,501		21,087
Natural gas in storage (current)	18,867		21,919
Other	16,247		18,999
Total	$	335,609	$	291,167

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

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


	2021	2020	2019
	(In thousands)
Weighted average common shares outstanding - basic	202,076	200,502	198,612
Effect of dilutive performance share awards	307	69	14
Weighted average common shares outstanding - diluted	202,383	200,571	198,626
Shares excluded from the calculation of diluted earnings per share	—	164	164