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Earnings Per Share - Diluted (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Diluted earnings per share    
Loss from discontinued operations, net of income taxes $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ (5)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Net income 5,776us-gaap_ProfitLoss 19,738us-gaap_ProfitLoss
Less: net income attributable to noncontrolling interests 4,310us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 6,150us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Less: Income resulting from the change in the fair value of warrants 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther 980us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
Numerator 1,466us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted 12,608us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Effect of warrants outstanding 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants 825us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
Weighted average common stock outstanding 43,717us-gaap_WeightedAverageNumberOfSharesIssuedBasic 42,631us-gaap_WeightedAverageNumberOfSharesIssuedBasic
Effect of dilutive securities 223us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares 305us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares
Denominator, Net, Diluted 43,940us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 43,761us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Diluted earnings (loss) per share, Net $ 0.03us-gaap_EarningsPerShareDiluted $ 0.29us-gaap_EarningsPerShareDiluted
Continuing Operations [Member]    
Diluted earnings per share    
Income (loss) 5,776us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
19,743us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Less: net income attributable to noncontrolling interests 4,310us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
6,150us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Less: Income resulting from the change in the fair value of warrants 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
980us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Numerator 1,466us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
12,613us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Effect of warrants outstanding 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
825us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Weighted average common stock outstanding 43,717us-gaap_WeightedAverageNumberOfSharesIssuedBasic
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
42,631us-gaap_WeightedAverageNumberOfSharesIssuedBasic
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Effect of dilutive securities 223us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
305us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Denominator, Net, Diluted 43,940us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
43,761us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Diluted earnings per share, Continuing Operations $ 0.03us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
$ 0.29us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Discontinued Operations [Member]    
Diluted earnings per share    
Loss from discontinued operations, net of income taxes 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
(5)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Less: net income attributable to noncontrolling interests 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Less: Income resulting from the change in the fair value of warrants 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Numerator $ 0us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
$ (5)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Effect of warrants outstanding 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
825us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Weighted average common stock outstanding 43,717us-gaap_WeightedAverageNumberOfSharesIssuedBasic
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
42,631us-gaap_WeightedAverageNumberOfSharesIssuedBasic
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Effect of dilutive securities 223us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
305us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Denominator, Net, Diluted 43,940us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
43,761us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
Diluted earnings per share, Discontinued Operations $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
$ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember