XML 99 R85.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes - Effective Income Tax Rate Reconcilliation (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
Federal income tax at statutory rates $ (50,310)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ (21,260)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ (5,439)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal income tax benefits (2,117)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes (1,757)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 22us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Dividends received deductions 0us-gaap_IncomeTaxReconciliationDeductionsDividends (766)us-gaap_IncomeTaxReconciliationDeductionsDividends (766)us-gaap_IncomeTaxReconciliationDeductionsDividends
Convertible debt mark-to-market - non-deductible 0cas_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMarkToMarketAdjustment 0cas_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMarkToMarketAdjustment 6,206cas_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMarkToMarketAdjustment
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount 10,454us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses 0us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses 0us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses
Other permanent differences 285cas_EffectiveIncomeTaxRateReconciliationPermanentDifferences (124)cas_EffectiveIncomeTaxRateReconciliationPermanentDifferences 480cas_EffectiveIncomeTaxRateReconciliationPermanentDifferences
Federal and state income tax on joint venture 2,912cas_EffectiveIncomeTaxRateReconciliationFederalAndStateIncomeTaxesJointVentureAmount 2,670cas_EffectiveIncomeTaxRateReconciliationFederalAndStateIncomeTaxesJointVentureAmount 2,766cas_EffectiveIncomeTaxRateReconciliationFederalAndStateIncomeTaxesJointVentureAmount
Rate differential on foreign income 11,512us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential 812us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (1,680)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 24,572us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Unrecognized tax benefits 0cas_EffectiveIncomeTaxRateReconcilliationUnrecognizedTaxBenefits 0cas_EffectiveIncomeTaxRateReconcilliationUnrecognizedTaxBenefits (557)cas_EffectiveIncomeTaxRateReconcilliationUnrecognizedTaxBenefits
Audit settlements 99us-gaap_IncomeTaxReconciliationTaxSettlements 0us-gaap_IncomeTaxReconciliationTaxSettlements 218us-gaap_IncomeTaxReconciliationTaxSettlements
Other 1,240us-gaap_IncomeTaxReconciliationOtherAdjustments 630us-gaap_IncomeTaxReconciliationOtherAdjustments 180us-gaap_IncomeTaxReconciliationOtherAdjustments
Income tax (benefit) expense $ (1,353)us-gaap_IncomeTaxExpenseBenefit $ (19,795)us-gaap_IncomeTaxExpenseBenefit $ 1,430us-gaap_IncomeTaxExpenseBenefit
Effective income tax expense rate 0.90%us-gaap_EffectiveIncomeTaxRateContinuingOperations 32.60%us-gaap_EffectiveIncomeTaxRateContinuingOperations (9.20%)us-gaap_EffectiveIncomeTaxRateContinuingOperations