Commitments and Contingencies - Narrative (Details) - 1-800 Contacts Matter - USD ($) $ in Millions		1 Months Ended	3 Months Ended
Nov. 08, 2017	May 31, 2017	Jul. 01, 2017
Loss Contingencies [Line Items]
Amount of litigation settlement		$ 7.0
Litigation settlement			$ 7.0
Percent of settlement award deposited in escrow account (percent)	50.00%
Amount of settlement deposited in escrow account	$ 3.5

Litigation Settlement, Amount Of Settlement To Be Paid Deposited In Escrow Account

No definition available.

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- Definition

Litigation Settlement, Percent Of Settlement To Be Paid Deposited In Escrow Account

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

+ Details

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ 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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