Common Stock Common Stock (Notes)

3 Months Ended

Mar. 31, 2017

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

COMMON STOCK

In March 2016, the Company entered into four separate sales agency agreements under which Avista Corp.'s sales agents may offer and sell up to 3.8 million new shares of Avista Corp.'s common stock, no par value, from time to time. The sales agency agreements expire on February 29, 2020. As of March 31, 2017, 1.6 million shares have been issued under these agreements, leaving 2.2 million shares remaining to be issued. No shares were issued under these agreements in the three months endedMarch 31, 2017.

In the three months endedMarch 31, 2017, Avista Corp. issued 0.2 million shares of common stock, most of which were under employee incentive plans, which have zero proceeds. The Company also issued a small number of shares under the 401K employee investment plan for total net proceeds of $0.3 million.