XML 42 R28.htm IDEA: XBRL DOCUMENT v3.25.3

Equity Method Investments (Tables)

9 Months Ended

Sep. 30, 2025

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

The table below summarizes the book value of those investments, which are reported in “Investments and other assets” in the condensed consolidated balance sheets, and the related “Loss from equity affiliates” in the unaudited condensed consolidated statements of operations:

															Loss (Income) from Equity Affiliates
			Book Value at												Three Months Ended September 30,												Nine Months Ended September 30,
			September 30, 2025						December 31, 2024						2025						2024						2025						2024
			(Dollars in millions)
Equity method investment related to Middlemount			$	47.3					$	52.7					$	1.2					$	(2.2)					$	8.0					$	(4.1)
Equity method investment related to R3			—						—						—						4.3						—						11.2
Equity method investment related to R3 II			2.0						5.8						1.4						—						2.2						—
Total equity method investments			$	49.3					$	58.5					$	2.6					$	2.1					$	10.2					$	7.1

X

- References

No definition available.

+ Details

Name:	us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_EquityMethodInvestmentsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration