Investment in Real Estate Real Estate by Property Type and Segment (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013	Dec. 31, 2013
Real Estate Properties [Line Items]
Operating property	$ 208,264,000			$ 208,264,000			$ 206,910,000
Development property	170,066,000			170,066,000			229,354,000
Investment in unconsolidated affiliates	2,357,000	[1]		2,357,000	[1]		2,241,000	[1]
Total real estate investments	380,687,000			380,687,000			438,505,000
Less: Accumulated depreciation	56,623,000			56,623,000			53,496,000
Investment in real estate, net	324,064,000			324,064,000			385,009,000
Capitalized indirect costs incurred	200,000		100,000	600,000		400,000
Residential real estate
Real Estate Properties [Line Items]
Operating property	1,544,000			1,544,000			2,071,000
Development property	103,086,000			103,086,000			130,616,000
Resorts, leisure and leasing operations
Real Estate Properties [Line Items]
Operating property	188,305,000			188,305,000			146,624,000
Development property	1,772,000			1,772,000			28,737,000
Forestry
Real Estate Properties [Line Items]
Operating property	18,367,000			18,367,000			58,170,000
Development property	3,319,000			3,319,000			8,976,000
Other
Real Estate Properties [Line Items]
Operating property	48,000			48,000			45,000
Commercial real estate
Real Estate Properties [Line Items]
Development property	59,411,000			59,411,000			58,659,000
Corporate
Real Estate Properties [Line Items]
Development property	$ 2,478,000			$ 2,478,000			$ 2,366,000

[1] Recorded in the Company’s resorts, leisure and leasing operation’s segment.