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Investments in Unconsolidated Entities - Additional Information (Detail)	3 Months Ended
	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

X

- 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

X

- 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: