Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Employee Contributions Under Defined Contribution Plans And Supplemental Employer Contributions

The match of employee contributions under defined contribution plans and supplemental employer contributions for the years ended December 31, 2017,  2016 and 2015 were as follows:

	Year Ended December 31,
(In millions)	2017		2016		2015
Company match of employee contributions	$	1.7	$	1.6	$	1.1
Supplemental employer contributions		—		0.6		0.4

Components of Net Periodic Benefit Expense

The following table presents the components of the net periodic benefit expense under the German defined benefit pension plans for the years ended December 31, 2017, 2016 and 2015:

	Year Ended December 31,
(In millions)	2017		2016		2015
Service cost	$	1.0	$	0.9	$	0.9
Interest cost		0.9		1.0		0.7
Amortization of net actuarial gains		—		(0.3)		—
Expected return on plan assets		—		(0.1)		(0.1)
Net periodic benefit expense	$	1.9	$	1.5	$	1.5

Changes in Projected Benefit Obligations and Plan Assets

The following table reflects changes in projected benefit obligations and plan assets during the years ended December 31, 2017 and 2016:

	Year Ended December 31,
(In millions)	2017		2016		2015
Changes in projected benefit obligations:
Projected benefit obligations, beginning of period	$	46.5	$	42.2	$	—
Projected benefit obligations assumed in business combination		—		—		49.8
Service cost		1.0		0.9		0.9
Interest cost		0.9		1.0		0.7
Actuarial loss (gain)		(1.3)		5.0		(7.2)
Benefits paid		(1.0)		(1.0)		(0.8)
Currency translation and other		6.6		(1.6)		(1.2)
Projected benefit obligations, end of period		52.7		46.5		42.2
Changes in plan assets:
Fair value of plan assets, beginning of period		4.5		4.2		—
Fair value of plan assets acquired in business combination		—		—		3.8
Employer contributions		0.6		0.5		0.5
Actual return on plan assets		—		0.1		0.1
Currency translation and other		0.7		(0.3)		(0.2)
Fair value of plan assets, end of period		5.8		4.5		4.2
Accrued pension benefits	$	46.9	$	42.0	$	38.0

Amounts Recognized in Consolidated Balance Sheets

The following table provides additional information about amounts recognized in the consolidated balance sheets as of December 31, 2017 and 2016:

	December 31,
(In millions)	2017		2016
Accrued pension benefits	$	46.9	$	42.0
Net actuarial gain (loss) recognized in accumulated other comprehensive income (loss) (before tax)		1.5		(5.1)
Amortization of net actuarial gain expected to be recognized during the next fiscal year (before tax)		—		—
Accumulated benefit obligation		47.1		41.3
Projected employer contributions for following year		0.6		0.5

Estimated Future Benefit Payments for Company's Pension Plans Expected Future Service

Expected Future Benefit Payments. The following table provides estimated benefit payments for the Company’s pension plans, which reflect expected future service:

	Year Ended December 31,
(In millions)	2018		2019		2020		2021		2022		2023 to 2027
Expected future benefit payments	$	1.2	$	1.3	$	1.4	$	1.4	$	1.5	$	8.7

Benefit Obligations

Summary of Assumptions Used to Measure Accrued Pension Benefits

The following table provides assumptions used to determine benefit obligations as of December 31, 2017 and 2016:

	December 31,
	2017		2016
Discount rate	1.9	%	1.8	%
Rate of compensation increase	2.8	%	2.8	%
Pension increase	1.6	%	1.6	%
Turnover	2.0	%	2.0	%

Net Periodic Benefit Cost

Summary of Assumptions Used to Measure Accrued Pension Benefits

The following table reflects the assumptions used to determine the net periodic benefit expense for the years ended December 31, 2017, 2016 and 2015:

	Year Ended December 31,
	2017		2016		2015
Discount rate	1.8	%	2.4	%	1.7	%
Expected return on plan assets	1.5	%	1.5	%	1.5	%
Rate of compensation increase	2.8	%	2.8	%	3.0	%