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Unconsolidated Affiliate Companies (Details) (Asia Pacific Joint Ventures, USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Asia Pacific Joint Ventures
   
Schedule of Equity Method Investments [Line Items]    
Percentage of owned subsidiary (as a percent) 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tpx_AsiaPacificJointVenturesMember
 
Investments $ 14.0us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tpx_AsiaPacificJointVenturesMember
$ 12.9us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tpx_AsiaPacificJointVenturesMember