Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Post Retirement Benefit Plans

Defined Contribution Plan Disclosures [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Components of net periodic benefit cost:
Service cost	$	0.1		$	0.1		$	0.3		$	0.3
Interest cost	2.7			2.7			8.2			8.1
Expected return on plan assets	(1.6		)	(1.8		)	(4.9		)	(5.3		)
Amortization of prior service cost	0.2			0.2			0.7			0.6
Amortization of net actuarial loss	—			0.1			—			0.1
Net periodic benefit cost	$	1.4		$	1.3		$	4.3		$	3.8