Discontinued Operations - Narrative (Details) (USD $)			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Glacier Park
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Possessory Interest			$ 25,000,000
Gain on Possessory Interest, before Tax			21,600,000
Gain on Possessory Interest, Net of Tax, Attributable to Parent Only			15,200,000
Gain on Possessory Interest, Net of Tax, Attributable to Noncontrolling Interest			2,700,000
Assets held for sale	$ 1,814,000	$ 0	$ 1,800,000