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Operating Segments to the corresponding amounts Narrative (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating Segments to the corresponding amounts in narrative:      
Segment assets $ 699,763fil_SegmentAssets $ 700,294fil_SegmentAssets $ 930,433fil_SegmentAssets
Investments in unconsolidated subsidiaries and investees 4,279fil_InvestmentsInUnconsolidatedSubsidiariesAndInvestees 3,789fil_InvestmentsInUnconsolidatedSubsidiariesAndInvestees 8,168fil_InvestmentsInUnconsolidatedSubsidiariesAndInvestees
Notes and interest receivable 134,366fil_NotesAndInterestReceivable 136,815fil_NotesAndInterestReceivable 103,469fil_NotesAndInterestReceivable
Other assets and receivables 127,090fil_OtherAssetsAndReceivables 102,424fil_OtherAssetsAndReceivables 93,275fil_OtherAssetsAndReceivables
Assets held for sale 0fil_AssetsHeldForSale 0fil_AssetsHeldForSale 0fil_AssetsHeldForSale
Total assets $ 965,498fil_TotalAssets $ 943,322fil_TotalAssets $ 1,135,345fil_TotalAssets