Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 14,716	$ 8,507
Accounts and notes receivable-less allowances of $4,838 and $5,026, respectively	125,595	180,265
Regulatory asset for energy commodity derivatives	22,005	11,365
Materials and supplies, fuel stock and stored natural gas	65,961	53,314
Income taxes receivable	42,111	48,265
Other current assets	46,246	49,625
Total current assets	316,634	351,341
Net Utility Property:
Utility plant in service	5,686,633	5,506,499
Construction work in progress	194,679	150,474
Total	5,881,312	5,656,973
Less: Accumulated depreciation and amortization	1,578,148	1,509,473
Total net utility property	4,303,164	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	80,022	72,224
Total other non-current assets	149,241	141,443
Deferred Charges:
Regulatory assets for deferred income tax	123,449	109,853
Regulatory assets for pensions and other postretirement benefits	230,988	240,114
Other regulatory assets	129,112	135,751
Regulatory asset for interest rate swaps	170,079	161,508
Non-current regulatory asset for utility derivatives	16,371	16,919
Other deferred charges	13,194	5,326
Total deferred charges	683,193	669,471
Total assets	5,452,232	5,309,755
Current Liabilities:
Accounts payable	72,777	115,545
Current portion of long-term debt	277,626	3,287
Short-term borrowings	106,298	120,000
Utility energy commodity derivative liabilities	11,054	7,035
Accrued interest	29,077	15,869
Accrued taxes other than income taxes	34,520	33,374
Deferred natural gas costs	34,399	30,820
Current portion of pensions and other postretirement benefits	11,544	10,994
Current interest rate swap derivative liabilities	34,520	6,025
Other current liabilities	61,436	64,579
Total current liabilities	673,251	407,528
Long-term debt and capital leases	1,491,789	1,678,717
Long-term debt to affiliated trusts	51,547	51,547
Regulatory liability for utility plant retirement costs	284,263	273,983
Pensions and other postretirement benefits	216,464	226,552
Deferred income taxes	903,943	840,928
Non-current interest rate swap derivative liabilities	1,330	28,705
Other non-current liabilities and deferred credits	158,699	153,319
Total liabilities	3,781,286	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; 64,414,572 and 64,187,934 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	1,077,215	1,075,281
Accumulated other comprehensive loss	(7,020)	(7,568)
Retained earnings	600,132	581,014
Total Avista Corporation stockholders’ equity	1,670,327	1,648,727
Noncontrolling Interests	619	(251)
Total equity	1,670,946	1,648,476
Total liabilities and equity	$ 5,452,232	$ 5,309,755