Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Other Postretirement Benefit Plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

The components of net postretirement benefit expense are as follows:

	For the three months ended
	March 31, 2018			March 31, 2017
Service cost	$	0.1		$	—
Interest cost	0.2			0.3
Amortization of net actuarial gains	(0.2		)	(0.1		)
Amortization of prior service cost	0.1			—
Net postretirement benefit expense	$	0.2		$	0.2

U.S. Pension Benefits

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

The components of the net periodic benefit expense are as follows:

	U.S. pension benefits
	For the three months ended
	March 31, 2018			March 31, 2017
Service cost	$	1.1		$	1.0
Interest cost	1.4			1.4
Amortization of net actuarial losses	0.5			0.5
Amortization of prior service cost	0.1			0.1
Expected return on plan assets	(2.6		)	(2.6		)
Net periodic benefit expense	$	0.5		$	0.4

Non U.S. Pension Benefits

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Non U.S. pension benefits
	For the three months ended
	March 31, 2018		March 31, 2017
Service cost	$	0.7	$	0.9
Interest cost	0.5		0.4
Amortization of net actuarial losses	0.7		0.7
Net periodic benefit expense	$	1.9	$	2.0