Minimum service period required to be eligible for profit sharing contribution to the 401(k) plan.

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- Definition

Fair value assets with unobservable inputs reconciliation foreign currency effects

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Fair value assets with unobservable inputs reconciliation gains and losses

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- Definition

Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.

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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of cost for defined contribution plan.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of cost (reversal of cost) for pension and other postretirement benefits.

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Retirement Benefit Plans Part 1 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Plan [Abstract]
Total cost of benefits for U.S. and Non-U.S. Plans	$ 13.7	$ 11.9	$ 13.3
Maximum employer contribution to 401(k) Plan as a percentage of employee's compensation	3.00%
Minimum service period required to be eligible for profit sharing contribution to 401(k) plan (in years)	1 year
Expenses for 401(k) Plan	$ 9.8	8.1	4.4
Pension Plan
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	15.0	17.2
Pension Plan \| Level 1
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	2.8	6.4
Pension Plan \| Level 2
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0
Pension Plan \| Level 3
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	12.2	10.8
Pension Plan \| Cash and Cash Equivalents
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	2.8	6.4
Pension Plan \| Cash and Cash Equivalents \| Level 1
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	2.8	6.4
Pension Plan \| Cash and Cash Equivalents \| Level 2
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0
Pension Plan \| Cash and Cash Equivalents \| Level 3
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0
Pension Plan \| Investment Account held by Pension Plan
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	12.2	10.8
Pension Plan \| Investment Account held by Pension Plan \| Level 1
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0
Pension Plan \| Investment Account held by Pension Plan \| Level 2
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0
Pension Plan \| Investment Account held by Pension Plan \| Level 3
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	12.2	10.8
U.S. Nonqualified Plan \| Pension Plan
Defined Contribution Plan [Abstract]
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0.0	0.0
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	0.0	0.0	0.0
U.S. Nonqualified Plan \| Retiree Plan
Defined Contribution Plan [Abstract]
Expected future employer contributions in the next fiscal year	0.7
U.S. Nonqualified Plan \| Nonqualified Plan
Defined Contribution Plan [Abstract]
Expected future employer contributions in the next fiscal year	0.2
Foreign Plan \| Pension Plan
Defined Contribution Plan [Abstract]
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0.0
Fair Value of Plan Assets by Investment Type
Fair value of plan assets	12.2	10.8	11.2
Foreign Plan \| U.K. Pension Plan
Defined Contribution Plan [Abstract]
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		0.1
Foreign Plan \| U.K. Pension Plan \| Pension Plan
Defined Contribution Plan [Abstract]
Expected future employer contributions in the next fiscal year	0.3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of year	10.8	11.2
Purchases, sales, issuances and settlements, net	0.2	(0.9)
Net gain	0.8	1.1
Foreign currency	0.4	(0.6)
Fair value at end of year	12.2	$ 10.8	$ 11.2
Foreign Plan \| German Pension Plan \| Pension Plan
Defined Contribution Plan [Abstract]
Expected future employer contributions in the next fiscal year	$ 0.1