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Investments (Tables)

3 Months Ended

Mar. 31, 2018

Equity Method Investments and Joint Ventures [Abstract]

Investments Reported in Other Current and Non-Current Assets

The following is a summary of our investments, included in other noncurrent assets in the consolidated balance sheet, and the related funding commitments (in millions):

		March 31, 2018								December 31,
						Funding				2017
		Assets				Commitments				Assets
Chem-Mod LLC		$	4.0			$	—			$	4.0
Chem-Mod International LLC			2.0				—				2.0
Clean-coal investments:
Controlling interest in six limited liability companies that own fourteen 2009 Era Clean Coal Plants			8.9				—				10.2
Non-controlling interest in one limited liability company that owns one 2011 Era Clean Coal Plant			0.5				—				0.6
Controlling interest in seventeen limited liability companies that own nineteen 2011 Era Clean Coal Plants			54.9				—				58.5
Other investments			4.2				—				3.8
Total investments		$	74.5			$	—			$	79.1

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- References

No definition available.

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- 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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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