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Financing: Equity (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Payments of Stock Issuance Costs | $ 0.2 | $ 0.4 | $ 0.2 | $ 0.4
Common Stock |  |  |  |
At The Market Equity Offering Program Shares Issued | 0.2 | 0.6 | 0.3 | 0.6
At The Market Equity Program - Net Proceeds from Sale of Stock | $ 16.0 | $ 40.0 | $ 20.0 | $ 40.0

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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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