Additional Balance Sheet Information (Tables)

6 Months Ended

Jun. 30, 2021

Balance Sheet Related Disclosures [Abstract]

Additional balance sheet information

Certain balance sheet amounts are comprised of the following:

(In thousands)	June 30, 2021		December 31, 2020
Accounts receivable, net
Trade accounts	$	183,174	$	215,301
Other accounts	565		462
	183,739		215,763
Allowance for doubtful accounts	(1,039)		(1,039)
	$	182,700	$	214,724
Other assets
Deferred compensation plan	$	25,820	$	22,510
Debt issuance costs	5,844		6,875
Operating lease right-of-use assets	32,002		33,741
Other accounts	44		85
	$	63,710	$	63,211
Accounts payable
Trade accounts	$	18,595	$	12,896
Royalty and other owners	28,206		37,243
Accrued transportation	47,898		52,238
Accrued capital costs	52,994		37,872
Taxes other than income	8,805		13,736
Other accounts	9,758		8,096
	$	166,256	$	162,081
Accrued liabilities
Employee benefits	$	11,882	$	14,270
Taxes other than income	2,965		3,026
Operating lease liabilities	3,951		3,991
Other accounts	1,282		1,087
	$	20,080	$	22,374
Other liabilities
Deferred compensation plan	$	34,477	$	30,581
Operating lease liabilities	27,935		29,628
Other accounts	13,509		21,069
	$	75,921	$	81,278