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Variable Interest Entities - Summary of Interests in Land Option Agreements (Detail) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Deposits | $ 71,909 | $ 27,003
Remaining Purchase Price | 741,218 | 381,939
Consolidated inventory held by VIEs | 0 | 0
Consolidated VIEs [Member] |  |
Variable Interest Entity [Line Items] |  |
Deposits | 0 | 0
Remaining Purchase Price | 0 | 0
Consolidated inventory held by VIEs | 0 | 0
Unconsolidated VIEs [Member] |  |
Variable Interest Entity [Line Items] |  |
Deposits | 41,198 | 3,418
Remaining Purchase Price | 433,720 | 112,590
Other land option agreements [Member] |  |
Variable Interest Entity [Line Items] |  |
Deposits | 30,711 | 23,585
Remaining Purchase Price | $ 307,498 | $ 269,349

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- Definition The net carrying amount as of the balance sheet date of capitalized construction costs held as inventory at variable interest entities. + References No definition available. + Details
Name: | tph_VariableInterestEntityConsolidatedInventoryHeld
Namespace Prefix: | tph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash deposits on land options and other similar contracts. + References No definition available. + Details
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Namespace Prefix: | tph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Remaining purchase price associate with land option and other similar contracts. + References No definition available. + Details
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Namespace Prefix: | tph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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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
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- Details
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- Details
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- Details
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