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Additional Balance Sheet Information
 9 Months Ended
Sep. 30, 2020
Balance Sheet Related Disclosures [Abstract]  
Additional Balance Sheet Information Additional Balance Sheet Information
Certain balance sheet amounts are comprised of the following:
(In thousands)September 30,
2020		December 31,
2019
Accounts receivable, net  
Trade accounts $136,740 $209,200 
Other accounts 1,037 1,007 
 137,777 210,207 
Allowance for doubtful accounts (1,039)(1,184)
 $136,738 $209,023 
Other assets  
Deferred compensation plan $19,882 $18,381 
Debt issuance costs7,391 8,938 
Operating lease right-of-use assets34,721 35,916 
Other accounts79 56 
 $62,073 $63,291 
Accounts payable  
Trade accounts $20,789 $21,663 
Royalty and other owners 25,836 36,191 
Accrued transportation50,999 55,586 
Accrued capital costs 27,850 40,337 
Taxes other than income 10,262 16,971 
Other accounts15,926 19,063 
 $151,662 $189,811 
Accrued liabilities  
Employee benefits $19,822 $22,727 
Taxes other than income 3,243 3,850 
Operating lease liabilities4,027 3,124 
Other accounts 1,304 1,589 
 $28,396 $31,290 
Other liabilities  
Deferred compensation plan $28,489 $27,012 
Derivative instruments4,095 — 
Operating lease liabilities 30,594 32,677 
Other accounts12,091 8,595 
 $75,269 $68,284