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Summary of Significant Accounting Policies - Basis of presentation and description of business (Details)	3 Months Ended
	Mar. 31, 2015 channel
Business Acquisition [Line Items]
Number of products sales channels	2tpx_NumberOfProductsSalesChannels
Comfort Revolution
Business Acquisition [Line Items]
Equity method investment, ownership percentage	45.00%us-gaap_VariableInterestEntityOwnershipPercentage / dei_LegalEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember

X

- Definition

Refers to the entity's number of products sales channels through which they sells their products.

+ References

No definition available.

+ Details

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

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