Credit Facility (Details) - Amended Credit Agreement - Subsequent Event	Jul. 30, 2018 USD ($)
Debt Instrument [Line Items]
Accordion feature, higher borrowing capacity option	$ 1,000,000,000
Maximum borrowing capacity	$ 700,000,000
Debt instrument term	5 years
Accordion feature, increase limit	$ 300,000,000
Annual principal payment, amortization percentage	5.00%
Debt covenant, maximum consolidated leverage ratio	3.00
Debt covenant, minimum consolidated interest coverage ratio	3.00
Term Loan Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 250,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	450,000,000
Standby Letters of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	100,000,000
Swingline Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	20,000,000
Multicurrency Borrowings and Letters of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200,000,000
Federal funds effective swap rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Prime rate or eurodollar rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Minimum \| Eurodollar \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Minimum \| Prime rate or eurodollar rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Maximum \| Eurodollar \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Maximum \| Prime rate or eurodollar rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%

Debt Instrument, Annual Principal Payment, Amortization Percentage

No definition available.

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- Definition

Line Of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Covenant, Consolidated Interest Coverage Ratio, Minimum

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Covenant, Consolidated Leverage Ratio, Maximum

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ 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

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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