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Summary of Significant Accounting Policies - Warranty Activity (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Movement in Extended Product Warranty Accrual [Roll Forward] |  |
Liabilities assumed as a result of Sealy Acquisition |  | $ 19.9tpx_LiabilitiesAssumedAsResultOfAcquisition
Warranty Reserves |  |
Movement in Extended Product Warranty Accrual [Roll Forward] |  |
Balance at beginning of period | 26.1us-gaap_StandardProductWarrantyAccrual / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember | 4.8us-gaap_StandardProductWarrantyAccrual / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember
Amounts accrued | 34.2us-gaap_StandardProductWarrantyAccrualWarrantiesIssued / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember | 22.7us-gaap_StandardProductWarrantyAccrualWarrantiesIssued / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember
Liabilities assumed as a result of Sealy Acquisition |  | 21.4tpx_LiabilitiesAssumedAsResultOfAcquisition / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember
Warranties charged to accrual | (29.0)us-gaap_StandardProductWarrantyAccrualPayments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember | (22.8)us-gaap_StandardProductWarrantyAccrualPayments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember
Balance at end of period | $ 31.3us-gaap_StandardProductWarrantyAccrual / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember | $ 26.1us-gaap_StandardProductWarrantyAccrual / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_WarrantyReservesMember

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- Definition The amount of acquisition cost of a business combination allocated to liabilities assumed. + References No definition available. + Details
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- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(1),(c)(5) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition Represents the aggregate increase in the liability for accruals related to standard product warranties issued during the reporting period. Does not include any increase in the liability for accruals related to extended product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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