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Discontinued Operations - Reconciliation of Discontinued Operations (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]      
Income (loss) from continuing operations $ 388us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity $ (117)us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity $ 205us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
Income from discontinued operations 2,825us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest 248us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest 481us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest
Net income attributable to noncontrolling interest $ 3,213us-gaap_NetIncomeLossAttributableToNoncontrollingInterest $ 131us-gaap_NetIncomeLossAttributableToNoncontrollingInterest $ 686us-gaap_NetIncomeLossAttributableToNoncontrollingInterest