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Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

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, 2019												December 31, 2018

	Gross Carrying Amount				Accumulated Amortization				Net Amount				Gross Carrying Amount				Accumulated Amortization				Net Amount
Sales order book	$	54.6			$	28.0			$	26.6			$	54.6			$	28.0			$	26.6
Customer relationships	68.9				20.6				48.3				68.9				19.5				49.4
Total	$	123.5			$	48.6			$	74.9			$	123.5			$	47.5			$	76.0