Acquisition Pro Forma (Tables)

9 Months Ended

Sep. 30, 2018

Pro Forma [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

	Company Pro Forma Information
	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2018		2017		2018		2017
Net revenue	$	240.2	$	218.7	$	845.7	$	754.8
Net income	15.5		18.2		302.4		104.1