Segment Information - Information by Business Segment (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 Segment	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Number of reportable operating segments	4
Operating revenues	$ 594,086,000	$ 26,773,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	509,904,000	(2,468,000)
Assets	1,169,084,000		669,472,000
Equity method investments	2,400,000		2,200,000
Residential Real Estate
Segment Reporting Information [Line Items]
Operating revenues	5,703,000	7,781,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	357,000	295,000
Assets	135,483,000		141,097,000
Commercial Real Estate
Segment Reporting Information [Line Items]
Operating revenues	2,285,000	226,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	801,000	(676,000)
Assets	63,440,000		62,924,000
Resorts, leisure and leasing operations
Segment Reporting Information [Line Items]
Operating revenues	8,201,000	9,022,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	(1,696,000)	(945,000)
Assets	151,026,000		142,940,000
Forestry
Segment Reporting Information [Line Items]
Operating revenues	577,873,000	9,695,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	514,099,000	3,505,000
Assets	16,131,000		60,889,000
Other
Segment Reporting Information [Line Items]
Operating revenues	24,000	49,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes:	(3,657,000)	(4,647,000)
Assets	$ 803,004,000		$ 261,622,000