Land Under Development - Additional Information (Detail) $ in Thousands	6 Months Ended	9 Months Ended
Jun. 30, 2016 USD ($) Lot	Sep. 30, 2016 USD ($) Lot Parcel	Feb. 29, 2016 USD ($)
Real Estate [Abstract]
Acquisition costs of land under development and finished lots			$ 150,000
Lots sold to unrelated party \| Lot	56
Amount of lots sold to unrelated parties under contract	$ 16,800
Number of raw parcels of land owned \| Parcel		4
Carrying value of raw parcels of land		$ 62,327
Number of finished lots expected to be developed from raw parcels of land \| Lot		800
Aggregate additional funding commitments related to raw land property under joint development		$ 13,700
Expected development credits that will offset the aggregate additional funding commitments related to raw land property development		$ 7,300

Aggregate additional funding commitments related to raw land property development.

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- Definition

Amount of finished lots sold under contract to an unrelated party.

+ References

No definition available.

+ Details

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- Definition

Expected development credit offset amount.

+ References

No definition available.

+ Details

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- Definition

Finished lots sold under contract to an unrelated party.

+ References

No definition available.

+ Details

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- Definition

Inventory real estate land acquisition costs.

+ References

No definition available.

+ Details

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- Definition

Number of finished lots expected to be developed from raw parcels of land.

+ References

No definition available.

+ Details

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- Definition

Number of raw parcels of land owned.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities..

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- References

No definition available.

+ Details

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