Acquisitions - Whitewater (Details) - Whitewater $ in Millions	1 Months Ended
Nov. 30, 2021 USD ($) MW
Asset Acquisition
Capacity of generation unit \| MW	236.5
WE and WPS
Asset Acquisition
Acquisition purchase price, expected \| $	$ 72.7

Purchase price of expected asset acquisition prior to consideration being transferred.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 15
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6911878&loc=d3e8732-128492

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Balance Type:	credit
Period Type:	duration