CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net income	$ 32,099	$ 24,287
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization including regulatory items	39,527	35,268
Pension and other postretirement benefit costs, net of contributions	5,154	7,174
Deferred income taxes and unamortized investment tax credit, net	3,513	12,096
Allowance for equity funds used during construction	(2,773)	(1,393)
Stock compensation expense	2,046	1,900
Loss on plant disallowance		2,409
Reverse gain on sale of assets		1,236
Non-cash (gain) on derivatives	(526)	(67)
Cash flows impacted by changes in:
Accounts receivable and accrued unbilled revenues	6,096	(7,140)
Fuel, materials and supplies	11	8,138
Prepaid expenses, other current assets and deferred charges	(3,104)	542
Accounts payable and accrued liabilities	(22,610)	(20,639)
Interest, taxes accrued and customer deposits	11,501	9,832
Asset retirement obligations	(1,234)
Other liabilities and other deferred credits	(656)	(2,638)
Net cash provided by operating activities	69,044	71,005
Investing activities:
Capital expenditures - regulated	(94,783)	(74,834)
Capital expenditures and other investments - non-regulated	(784)	(934)
Restricted cash	(4,854)	2,585
Net cash used in investing activities	(100,421)	(73,183)
Financing activities:
Proceeds from first mortgage bonds, net		150,000
Long-term debt issuance costs		(1,744)
Redemption of senior notes		(98,000)
Proceeds from issuance of common stock net of issuance costs	4,515	5,161
Net short-term borrowings/(repayments)	48,500	(24,000)
Dividends	(22,027)	(21,332)
Other	(147)	(432)
Net cash provided by financing activities	30,841	9,653
Net increase/(decrease) in cash and cash equivalents	(536)	7,475
Cash and cash equivalents at beginning of period	3,475	3,375
Cash and cash equivalents at end of period	$ 2,939	$ 10,850