Equity Method Investment (Tables)

3 Months Ended

Mar. 31, 2022

Equity Method Investments and Joint Ventures [Abstract]

Marketable Securities

Summarized financial information for NMRD is as follows:

	Results of Operations
	Three Months Ended March 31,
	2022		2021
	(In thousands)
Operating revenues	$	2,796	$	2,750
Operating expenses	2,404		2,522
Net earnings	$	392	$	228

	Financial Position
	March 31,		December 31,
	2022		2021
	(In thousands)
Current assets	$	5,827	$	10,729
Net property, plant, and equipment	164,733		166,495
Non-current assets	9,653		2,289
Total assets	180,213		179,513
Current liabilities	1,148		824
Non-current liabilities	377		373
Owners’ equity	$	178,688	$	178,316