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Variable Interest Entities - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Other land option agreements [Member]
Variable Interest Entity [Line Items]
Capitalized pre-acquisition costs	$ 7.5	$ 4.5

X

- Definition

Pre-acquisition costs included in real estate inventories that relate to land option contracts.

+ References

No definition available.

+ Details

Name:	tph_CapitalizedPreAcquisitionCosts
Namespace Prefix:	tph_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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_VariableInterestEntityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=tph_VariableInterestEntityOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: