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Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Excess Reorganization Value [Table Text Block]

Intangible asset balances are as follows (in millions):

			September 30, 2025																		December 31, 2024
			Gross Carrying Amount						Accumulated Amortization						Net Amount						Gross Carrying Amount						Accumulated Amortization						Net Amount
Backlog			$	54.6					$	49.3					$	5.3					$	54.6					$	46.8					$	7.8
Customer relationships			68.9						50.5						18.4						68.9						47.1						21.8
Total			$	123.5					$	99.8					$	23.7					$	123.5					$	93.9					$	29.6

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Schedule of Intangible Assets and Excess Reorganization Value [Table Text Block]

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