Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 26,179	$ 8,507
Accounts and notes receivable-less allowances of $5,966 and $5,026, respectively	179,403	180,265
Regulatory asset for energy commodity derivatives	11,649	11,365
Materials and supplies, fuel stock and stored natural gas	47,184	53,314
Income taxes receivable	34,159	48,265
Other current assets	58,718	49,625
Total current assets	357,292	351,341
Net Utility Property:
Utility plant in service	5,543,736	5,506,499
Construction work in progress	158,271	150,474
Total	5,702,007	5,656,973
Less: Accumulated depreciation and amortization	1,533,404	1,509,473
Total net utility property	4,168,603	4,147,500
Other Non-current Assets:
Investment in affiliated trusts	11,547	11,547
Goodwill	57,672	57,672
Other property and investments-net	76,525	72,224
Total other non-current assets	145,744	141,443
Deferred Charges:
Regulatory assets for deferred income tax	117,923	109,853
Regulatory assets for pensions and other postretirement benefits	237,104	240,114
Other regulatory assets	137,366	135,751
Regulatory Asset For Interest Rate Swap Agreements Noncurrent	155,027	161,508
Non-current regulatory asset for utility derivatives	15,236	16,919
Other deferred charges	6,064	5,326
Total deferred charges	668,720	669,471
Total assets	5,340,359	5,309,755
Current Liabilities:
Accounts payable	72,354	115,545
Current portion of long-term debt	3,317	3,287
Short-term borrowings	105,000	120,000
Utility energy commodity derivative liabilities	7,481	7,035
Interest Payable, Current	28,689	15,869
Accrual for Taxes Other than Income Taxes, Current	42,853	33,374
Refundable Gas Costs	30,987	30,820
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	10,906	10,994
Other current liabilities	65,238	70,604
Total current liabilities	366,825	407,528
Long-term debt and capital leases	1,678,113	1,678,717
Long-term debt to affiliated trusts	51,547	51,547
Regulatory liability for utility plant retirement costs	276,533	273,983
Pensions and other postretirement benefits	223,304	226,552
Deferred income taxes	866,861	840,928
Non-current interest rate swap derivative liabilities	23,143	28,705
Other non-current liabilities and deferred credits	168,587	153,319
Total liabilities	3,654,913	3,661,279
Commitments and Contingencies (See Notes to Consolidated Financial Statements)
Avista Corporation Stockholders’ Equity:
Common stock, no par value; 200,000,000 shares authorized; 64,386,152 and 64,187,934 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	1,073,098	1,075,281
Accumulated other comprehensive loss	(7,385)	(7,568)
Retained earnings	619,963	581,014
Total Avista Corporation stockholders’ equity	1,685,676	1,648,727
Noncontrolling Interests	(230)	(251)
Total equity	1,685,446	1,648,476
Total liabilities and equity	$ 5,340,359	$ 5,309,755