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INCOME TAXES (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Deferred tax assets:    
Accrued expenses $ 51,996us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities $ 50,311us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Pension liabilities 9,022us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions 4,404us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
Postretirement liabilities other than pensions 8,589us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits 6,349us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
Share-based compensation 6,310us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 5,898us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Federal and state net operating loss carryforwards 2,840us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 9,840us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Other 1,654us-gaap_DeferredTaxAssetsOther 1,877us-gaap_DeferredTaxAssetsOther
Total deferred tax assets 80,411us-gaap_DeferredTaxAssetsGross 78,679us-gaap_DeferredTaxAssetsGross
Valuation allowance (332)us-gaap_DeferredTaxAssetsValuationAllowance (1,028)us-gaap_DeferredTaxAssetsValuationAllowance
Total deferred tax assets, net of valuation allowance 80,079us-gaap_DeferredTaxAssetsNet 77,651us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:    
Amortization, depreciation, and basis differences for property, plant and equipment, and other long-lived assets 64,522arcb_DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndOtherLongLivedAssets 61,673arcb_DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndOtherLongLivedAssets
Intangibles 31,398us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets 34,385us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Revenue recognition 3,944us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome 4,264us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome
Prepaid expenses 4,393us-gaap_DeferredTaxLiabilitiesPrepaidExpenses 3,875us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Total deferred tax liabilities 104,257us-gaap_DeferredTaxLiabilities 104,197us-gaap_DeferredTaxLiabilities
Net deferred tax liabilities $ (24,178)us-gaap_DeferredTaxAssetsLiabilitiesNet $ (26,546)us-gaap_DeferredTaxAssetsLiabilitiesNet