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Significant real estate transactions (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 19, 2015
Significant real estate transactions
TCI sold acres of land	17.872fil_TciSoldAcresOfLand	15.515fil_TciSoldAcresOfLand
Sale price	$ 3.90fil_SalePrice	$ 3.40fil_SalePrice
Existing debt secured by the property	1.90fil_ExistingDebtSecuredByTheProperty	5.10fil_ExistingDebtSecuredByTheProperty
Recorded a gain on the sale	$ 1.60fil_RecordedAGainOnTheSale	$ 1.30fil_RecordedAGainOnTheSale
Sold to related parties acres of land	110fil_SoldToRelatedPartiesAcresOfLand
Sold to related party apartment complex	1fil_SoldToRelatedPartyApartmentComplex
Sold to related party commercial building	1fil_SoldToRelatedPartyCommercialBuilding

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- Definition

Existing debt secured by the property

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- Definition

The amount of the gain recorded in connection with the transaction involving the sale of property

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- Definition

Sale price of land parcels

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No definition available.

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- Definition

TCI has sold to a related party

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- Definition

TCI has sold to a related party one apartment complex

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- Definition

TCI has sold to a related party one commercial building.

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- Definition

TCI sold acres of land

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