CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Real estate revenue	$ 23,397,000	$ 33,704,000	$ 634,976,000
Resorts and leisure revenue	57,284,000	54,488,000	48,414,000
Leasing revenue	9,858,000	8,978,000	6,977,000
Timber revenue	5,205,000	6,701,000	11,506,000
Total revenue	95,744,000	103,871,000	701,873,000
Expenses:
Cost of real estate revenue	8,036,000	16,399,000	87,132,000
Cost of resorts and leisure revenue	50,229,000	47,069,000	42,900,000
Cost of leasing revenue	3,108,000	2,792,000	2,253,000
Cost of timber revenue	821,000	834,000	4,513,000
Other operating and corporate expenses	23,019,000	33,426,000	26,128,000
Pension charges	0	0	13,529,000
Administrative costs associated with special purpose entities	0	0	3,746,000
Depreciation, depletion and amortization	8,571,000	9,486,000	8,422,000
Total expenses	93,784,000	110,006,000	188,623,000
Operating income (loss)	1,960,000	(6,135,000)	513,250,000
Other income (expense):
Investment income, net	17,776,000	22,688,000	12,691,000
Interest expense	(12,295,000)	(11,429,000)	(8,608,000)
Claim settlement	12,548,000	0	0
Other income (expense), net	2,622,000	(6,287,000)	4,488,000
Total other income, net	20,651,000	4,972,000	8,571,000
Income (loss) before equity in loss from unconsolidated affiliates and income taxes	22,611,000	(1,163,000)	521,821,000
Equity in loss from unconsolidated affiliates	0	0	(32,000)
Income tax expense	(7,147,000)	(808,000)	(115,507,000)
Net income (loss)	15,464,000	(1,971,000)	406,282,000
Net loss attributable to non-controlling interest	431,000	240,000	171,000
Net income (loss) attributable to the Company	$ 15,895,000	$ (1,731,000)	$ 406,453,000
Basic and Diluted
Weighted average shares outstanding (in shares)	74,457,541	87,827,869	92,297,467
Net income (loss) per share attributable to the Company (in dollars per share)	$ 0.21	$ (0.02)	$ 4.40