Business Segments - Revenue Components of Real Estate Segments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue from External Customer [Line Items]
Segment revenues	$ 45,338	$ 47,089	$ 63,098
Equity in earnings of unconsolidated joint ventures, net	4,006	2,535	916
Real estate - commercial/industrial
Revenue from External Customer [Line Items]
Segment revenues	11,148	9,941	13,746
Equity in earnings of unconsolidated joint ventures, net	4,065	2,577	919
Revenues and Income (Loss) from Equity Method Investments	15,213	12,518	14,665
Real estate - commercial/industrial | Commercial leases
Revenue from External Customer [Line Items]
Segment revenues	6,799	6,095	5,450
Real estate - commercial/industrial | Grazing leases
Revenue from External Customer [Line Items]
Segment revenues	1,433	1,331	1,087
Real estate - commercial/industrial | Land sale
Revenue from External Customer [Line Items]
Segment revenues	0	648	4,340
Real estate - commercial/industrial | All other land management ancillary services
Revenue from External Customer [Line Items]
Segment revenues	2,916	1,867	2,869
Real estate - resort/residential
Revenue from External Customer [Line Items]
Segment revenues	1,266	583	16,134
Equity in earnings of unconsolidated joint ventures, net	(59)	(42)	(3)
Revenues and Income (Loss) from Equity Method Investments	1,207	541	16,131
Real estate - resort/residential | Hay sales - Centennial operations
Revenue from External Customer [Line Items]
Segment revenues	928	583	380
Real estate - resort/residential | Management fees
Revenue from External Customer [Line Items]
Segment revenues	312	0	4
Real estate - resort/residential | Conservation easements
Revenue from External Customer [Line Items]
Segment revenues	0	0	15,750
Real estate - resort/residential | Other
Revenue from External Customer [Line Items]
Segment revenues	$ 26	$ 0	$ 0