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Commitments and Contingencies - Litigation (Details)						1 Months Ended
	Jul. 21, 2017 suit	Jul. 14, 2017 suit	Jul. 10, 2017 suit	Mar. 30, 2017 subsidiary	Mar. 24, 2017 officer	Jul. 31, 2017 suit
David Buehring Case
Loss Contingencies [Line Items]
Loss contingency, number of defendants | officer					2
Gardner Case
Loss Contingencies [Line Items]
Loss contingency, new claims filed, number | suit	1	1	1			3
Mattress Firm Case
Loss Contingencies [Line Items]
Loss contingency, number of defendants | subsidiary				2

X

- 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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X

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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X

- Definition

Number of defendants named in a legal action.

+ References

No definition available.

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- Details

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