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Income Taxes - (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 01, 2018	Jan. 01, 2018	Dec. 31, 2017	Mar. 31, 2018	Jun. 30, 2018
Statutory tax rate (as a percent)		21.00%		35.00%	28.10%
Provision for income taxes due to enactment of Tax Act			$ 56.0
Transition Tax			64.6
Net impact on U.S. deferred tax assets and liabilities			$ 8.4
Forecast
Statutory tax rate (as a percent)	21.00%

X

- Definition

Amount of reasonable estimate for income tax expense (benefit) from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

+ References

No definition available.

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Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

+ References

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- Definition

Amount of reasonable estimate for income tax expense (benefit) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

+ References

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

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