CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 71,086	$ 15,874
Accounts receivable, net	25,274	21,483
Income taxes receivable	4,705	12,495
Materials and supplies	9,789	7,469
Prepaid expenses and other	4,546	3,844
Assets held for sale	203	2,797
Deferred income taxes	832	502
Total current assets	116,435	64,464
Investments, including $2,064 and $2,160 carried at fair Value	8,214	8,305
Property, plant and equipment, net	365,474	310,754
Other Assets
Intangible assets, net	74,932	81,346
Cost in excess of net assets of businesses acquired	10	10,962
Deferred charges and other assets, net	5,675	4,148
Other assets, net	80,617	96,456
Total assets	570,740	479,979
Current Liabilities
Current maturities of long-term debt	1,977	21,913
Accounts payable	31,729	11,708
Advanced billings and customer deposits	11,190	10,647
Accrued compensation	2,671	2,094
Liabilities held for sale	0	267
Accrued liabilities and other	10,573	8,950
Total current liabilities	58,140	55,579
Long-term debt, less current maturities	230,200	158,662
Other Long-Term Liabilities
Deferred income taxes	57,896	51,675
Deferred lease payable	4,903	4,174
Asset retirement obligations	5,896	7,610
Other liabilities	5,857	4,620
Total other liabilities	74,552	68,079
Commitments and Contingencies
Shareholders' Equity
Common stock, no par value, authorized 48,000 shares; issued and outstanding 23,962 shares in 2012 and 23,838 shares in 2011	24,688	22,043
Accumulated other comprehensive loss	(863)	0
Retained earnings	184,023	175,616
Total shareholders' equity	207,848	197,659
Total liabilities and shareholders' equity	$ 570,740	$ 479,979