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Stock-Based Compensation - Summary of unrecognized stock-based compensation expense (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Total unrecognized stock-based compensation expense | $ 20.2 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Weighted Average Remaining Vesting Period (Years) | 2 years 9 months 18 days
Unrecognized stock option expense |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Total unrecognized stock-based compensation expense | 5.6 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember
Weighted Average Remaining Vesting Period (Years) | 2 years 10 months 28 days
Unrecognized RSU/DSU expense |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Total unrecognized stock-based compensation expense | 0.2 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = tpx_RestrictedStockUnitsAndDeferredStockUnitsMember
Weighted Average Remaining Vesting Period (Years) | 2 years 10 months 21 days
Unrecognized PRSU expense |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Total unrecognized stock-based compensation expense | $ 14.4 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = tpx_PerformanceBasedRestrictedStockUnitsMember
Weighted Average Remaining Vesting Period (Years) | 2 years 9 months

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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AwardTypeAxis=tpx_PerformanceBasedRestrictedStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_AwardTypeAxis=tpx_RestrictedStockUnitsAndDeferredStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |