Pension and Post-retirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost were as follows (in millions):

	For the Three Months Ended March 31,
	2017			2016			2017			2016
	Pension Benefits						Other Benefits
Service cost	$	1.3		$	1.1		$	—		$	—
Interest cost	3.2			3.7			—			—
Expected return on plan assets	(5.4		)	(5.1		)	—			—
Amortization of prior service cost	0.1			0.1			(0.6		)	(0.8		)
Recognized actuarial loss	2.1			2.1			0.3			0.4
Settlements and curtailments	0.3			—			—			—
Net periodic benefit cost (1)	$	1.6		$	1.9		$	(0.3	)	$	(0.4	)

	For the Three Months Ended March 31,
	2017			2016			2017			2016
	Pension Benefits						Other Benefits
Service cost	$	1.3		$	1.1		$	—		$	—
Interest cost	3.2			3.7			—			—
Expected return on plan assets	(5.4		)	(5.1		)	—			—
Amortization of prior service cost	0.1			0.1			(0.6		)	(0.8		)
Recognized actuarial loss	2.1			2.1			0.3			0.4
Settlements and curtailments	0.3			—			—			—
Net periodic benefit cost (1)	$	1.6		$	1.9		$	(0.3	)	$	(0.4	)

⁽¹⁾ All net periodic benefit cost for the three months ended March 31, 2017 and 2016 related to continuing operations.