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Discontinued Operations - Narrative (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 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     14,300,000
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
Loss on change in reserves from discontinued operations $ 300,000