Represents the employer contribution as a percentage of participating employee's compensation.

No definition available.

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- Definition

Represents the number of defined contribution retirement plans.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
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- Details

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Retirement Plans (Details) $ in Millions	12 Months Ended
Retirement Plans (Details) $ in Millions	Dec. 31, 2018 USD ($) plan	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percent	7.00%	7.00%	7.00%
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of defined contribution retirement plans \| plan	6
Entity's contribution to retirement plans as percentage of employees' compensation	3.00%
Cost of defined contribution plans \| $	$ 15.8	$ 14.2	$ 10.1
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of defined contribution retirement plans \| plan	4
Switzerland \| Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions to pension funds \| $	$ 4.5	$ 4.0	$ 3.1
Minimum \| Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Entity's contribution to retirement plans as percentage of employees' compensation	3.00%
Maximum \| Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Entity's contribution to retirement plans as percentage of employees' compensation	15.00%