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Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

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):


			March 31, 2021																		December 31, 2020
			Gross Carrying Amount						Accumulated Amortization						Net Amount						Gross Carrying Amount						Accumulated Amortization						Net Amount
Sales order book			$	54.6					$	33.0					$	21.6					$	54.6					$	32.0					$	22.6
Customer relationships			68.9						29.8						39.1						68.9						28.7						40.2
Total			$	123.5					$	62.8					$	60.7					$	123.5					$	60.7					$	62.8