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Investments in Unconsolidated Entities - Additional Information (Detail)
12 Months Ended
Dec. 31, 2014
Investment
Schedule of Equity Method Investments [Line Items]  
Number of equity investments 6tph_NumberOfEquityInvestments
Minimum [Member]  
Schedule of Equity Method Investments [Line Items]  
Ownership percentage 7.00%tph_InvestmentOwnershipPercentage
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]  
Schedule of Equity Method Investments [Line Items]  
Ownership percentage 55.00%tph_InvestmentOwnershipPercentage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember