UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 26,304	$ 44,061
Accounts receivable, net of allowance for doubtful accounts of $726 and $776, respectively	15,344	20,615
Income taxes receivable	4,647	29,755
Prepaid expenses and other	12,874	11,509
Current assets held for sale	19,742	22,622
Total current assets	78,911	128,562
Investments	13,016	12,971
Property, plant and equipment, net	786,446	687,553
Goodwill and intangible assets, net	81,270	81,515
Operating lease right-of-use assets	52,258	53,859
Deferred charges and other assets	15,557	13,259
Total assets	1,027,458	977,719
Current liabilities:
Current maturities of long-term debt, net of unamortized loan fees	1,056	648
Accounts payable	41,238	49,173
Advanced billings and customer deposits	12,359	12,425
Accrued compensation	7,532	9,616
Current operating lease liabilities	3,076	2,829
Accrued liabilities and other	12,766	17,906
Current liabilities held for sale	3,804	3,824
Total current liabilities	81,831	96,421
Long-term debt, less current maturities, net of unamortized loan fees	123,795	74,306
Other long-term liabilities:
Deferred income taxes	87,830	84,600
Asset retirement obligations	10,187	9,932
Benefit plan obligations	4,035	3,758
Non-current operating lease liabilities	49,872	50,477
Other liabilities	20,483	20,218
Total other long-term liabilities	172,407	168,985
Commitments and contingencies (Note 13)
Shareholders’ equity:
Common stock, no par value, authorized 96,000; 50,264 and 50,110 issued and outstanding at June 30, 2023 and December 31, 2022, respectively	0	0
Additional paid in capital	62,888	57,453
Retained earnings	584,410	580,554
Accumulated other comprehensive income, net of taxes	2,127	0
Total shareholders’ equity	649,425	638,007
Total liabilities and shareholders’ equity	$ 1,027,458	$ 977,719