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Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]      
Goodwill impairment charge     $ 321.1us-gaap_GoodwillImpairmentLoss
Implied market control premium (in hundredths) 29.30%tpc_ImpliedMarketControlPremium 35.60%tpc_ImpliedMarketControlPremium  
Indefinite lived intangible assets impairment charge     16.4us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Finite lived intangible assets impairment charge     39.1us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Amortization expense      
Amortization expense 13.5us-gaap_AmortizationOfIntangibleAssets 13.1us-gaap_AmortizationOfIntangibleAssets 18.3us-gaap_AmortizationOfIntangibleAssets
Amortization expense, 2015 3.7us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
Amortization expense, 2016 3.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
Amortization expense, 2017 3.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
Amortization expense, 2018 3.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
Amortization expense, 2019 3.6us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Amortization expense, thereafter $ 32.0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive    
Minimum [Member]      
Goodwill [Line Items]      
Weighted-average cost of capital rate (in hundredths) 14.00%tpc_GoodwillImpairmentWeightedAverageCostOfCapitalInputs
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Maximum [Member]      
Goodwill [Line Items]      
Weighted-average cost of capital rate (in hundredths) 15.50%tpc_GoodwillImpairmentWeightedAverageCostOfCapitalInputs
/ us-gaap_RangeAxis
= us-gaap_MaximumMember