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v3.19.1

Investments in Unconsolidated Entities - Additional Information (Detail) | 3 Months Ended
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Mar. 31, 2019 investment
Minimum |
Investment Holdings [Line Items] |
Ownership percentage (percent) | 7.00%
Maximum |
Investment Holdings [Line Items] |
Ownership percentage (percent) | 65.00%
Homebuilding Partnerships or Limited Liability Companies |
Investment Holdings [Line Items] |
Number of equity investments | 4
Financial Services Limited Liability Company |
Investment Holdings [Line Items] |
Number of equity investments | 1

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- Definition Investment ownership percentage. + References No definition available. + Details
Name: | tph_InvestmentOwnershipPercentage
Namespace Prefix: | tph_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of equity investments. + References No definition available. + Details
Name: | tph_NumberOfEquityInvestments
Namespace Prefix: | tph_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_InvestmentHoldingsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=tph_HomebuildingPartnershipsOrLimitedLiabilityCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=tph_FinancialServicesLimitedLiabilityCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |