Number of current and future communities transferred to the acquirer in a business acquisition.

No definition available.

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- Definition

Represents the value of land purchased during the period, for development for purposes of selling completed units to home buyers or commercial or industrial entities.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of land purchased during the period that is allocated (based on homesites) to a certain category. This may include, but is not limited to, a percentage of one or more of the following: segments, subsegments, or geographical regions.

+ References

No definition available.

+ Details

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- Definition

Represents the land purchased during the period, for development, expressed in terms of the number of homesites.

+ References

No definition available.

+ Details

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- Definition

The number of active and future projects owned.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
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-Name Accounting Standards Codification
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Balance Type:	credit
Period Type:	duration

- Definition

Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of inventory recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
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-Paragraph 1
-Subparagraph (c)
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-SubTopic 10
-Section 55
-Paragraph 37
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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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-Paragraph 1
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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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Note 8 - Inventories (Details Textual) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
Note 8 - Inventories (Details Textual) $ in Thousands	Jun. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Inventory, Real Estate, Land and Land Development Costs, Land Purchased During Period		$ 732,400		$ 960,800
Inventory, Real Estate, Number of Homesites Purchased During the Period		10,694		13,566
Number of Active and Future Projects Owned		901	879
Impairment of Real Estate		$ 0	$ 0
Homebuilding Operations from Seattle-based Developer [Member]
Business Combination, Number of Current and Future Communities Acquired	19
Business Combination, Consideration Transferred	$ 44,500
Goodwill	15,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	100
Homebuilding Operations from Seattle-based Developer [Member] \| Inventory Owned [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	25,700
Homebuilding Operations from Seattle-based Developer [Member] \| Inventory Not Owned [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	$ 3,900
Homebuilding [Member]
Goodwill		$ 985,185		$ 970,185
Homebuilding [Member] \| North [Member]
Inventory, Real Estate, Land Purchased During Period, Percentage of Homesites Included in a Certain Category		27.00%		25.00%
Homebuilding [Member] \| Southeast [Member]
Inventory, Real Estate, Land Purchased During Period, Percentage of Homesites Included in a Certain Category		34.00%		25.00%
Homebuilding [Member] \| Southwest [Member]
Inventory, Real Estate, Land Purchased During Period, Percentage of Homesites Included in a Certain Category		18.00%		24.00%
Homebuilding [Member] \| West [Member]
Inventory, Real Estate, Land Purchased During Period, Percentage of Homesites Included in a Certain Category		21.00%		26.00%