UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 75,207	$ 78,585
Accounts receivable, net	59,968	54,184
Income taxes receivable	2,545	17,311
Inventory, net	4,962	5,704
Prepaid expenses and other	63,383	17,111
Total current assets	206,065	172,895
Investments	12,296	11,472
Property, plant and equipment, net	669,709	686,327
Other assets:
Intangible assets, net	381,537	380,979
Goodwill	146,497	146,497
Deferred charges and other assets, net	53,723	13,690
Total assets	1,469,827	1,411,860
Current Liabilities
Current maturities of long-term debt, net of unamortized loan fees	84,743	64,397
Accounts payable	23,868	28,953
Advanced billings and customer deposits	7,415	21,153
Accrued compensation	6,833	9,167
Accrued liabilities and other	14,756	13,914
Total current liabilities	137,615	137,584
Long-term debt, less current maturities, net of unamortized loan fees	694,045	757,561
Other Long-Term Liabilities
Deferred income taxes	120,846	100,879
Deferred lease	22,162	15,782
Asset retirement obligations	22,372	21,211
Retirement plan obligations	13,235	13,328
Other liabilities	14,567	15,293
Total other long-term liabilities	193,182	166,493
Shareholders’ Equity
Common stock, no par value, authorized 96,000; 49,559 and 49,328 issued and outstanding at September 30, 2018 and December 31, 2017, respectively	0	0
Additional paid in capital	47,350	44,787
Retained earnings	385,045	297,205
Accumulated other comprehensive income (loss), net of taxes	12,590	8,230
Total shareholders’ equity	444,985	350,222
Total liabilities and shareholders’ equity	$ 1,469,827	$ 1,411,860