CONDENSED CONSOLIDATED BALANCE SHEET (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 5,994	$ 6,234
Restricted cash	11,674	12,862
Accounts receivable, net	107,112	143,304
Inventories	72,047	50,701
Regulatory assets	44,790	59,993
Deferred income taxes	19,593	24,052
Other	7,804	5,908
Total current assets	269,014	303,054
Property, plant, and equipment, net	2,170,928	2,117,977
Goodwill	355,128	355,128
Regulatory assets	225,757	222,341
Other noncurrent assets	40,997	39,169
Total assets	3,061,824	3,037,669
Current Liabilities:
Current maturities of capital leases	1,348	1,276
Current maturities of long-term debt	3,792	6,578
Short-term borrowings	112,993	0
Accounts payable	59,117	75,042
Accrued expenses	229,427	203,900
Regulatory liabilities	19,836	17,173
Total current liabilities	426,513	303,969
Long-term capital leases	33,271	34,288
Long-term debt	905,034	1,061,780
Deferred income taxes	262,660	232,709
Noncurrent regulatory liabilities	262,890	251,133
Other noncurrent liabilities	333,247	333,443
Total liabilities	2,223,615	2,217,322
Commitments and Contingencies (Note 13)
Shareholders' Equity:
Common stock, par value $0.01; authorized 200,000,000 shares; issued and outstanding 39,827,577 and 36,264,686, respectively; Preferred stock, par value $0.01; authorized 50,000,000 shares; none issued	398	398
Treasury stock at cost	(90,258)	(90,427)
Paid-in capital	816,151	813,878
Retained earnings	107,494	87,984
Accumulated other comprehensive income	4,424	8,514
Total shareholders' equity	838,209	820,347
Total liabilities and shareholders' equity	$ 3,061,824	$ 3,037,669