Investment In Real Estate (Real Estate Investment By Segment) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Real Estate Properties [Line Items]
Operating property	$ 242,441	$ 239,405
Development property	552,170	551,495
Investment property	8,606	8,606
Investment in unconsolidated real estate affiliates	2,261	(2,122)
Total real estate investments	805,478	797,384
Less: Accumulated depreciation	45,875	41,992
Investment in real estate	759,603	755,392
Residential Real Estate [Member]
Real Estate Properties [Line Items]
Operating property	179,523	178,417
Development property	473,183	478,278
Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Operating property	4,689
Development property	71,288	65,465
Investment property	1,753	1,753
Rural Land Sales [Member]
Real Estate Properties [Line Items]
Operating property	139	139
Development property	7,393	7,446
Forestry [Member]
Real Estate Properties [Line Items]
Operating property	57,580	60,339
Investment property	952	952
Other [Member]
Real Estate Properties [Line Items]
Operating property	510	510
Development property	306	306
Investment property	$ 5,901	$ 5,901

Income-Producing Depreciable Operating Property

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- Definition

Investment in unconsolidated real estate affiliates.

+ Details

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- Definition

Real estate Investment Property.

+ Details

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- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.10)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- Definition

The cumulative amount of depreciation for real estate property held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

-Paragraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(3))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- Definition

Represents a total which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(d))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- Definition

The net book value of real estate property held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(d))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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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.

+ Details

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