XML 42 R61.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Details 2) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2011
Deferred tax liabilities:      
Property and equipment $ 46,618,000us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment $ 37,319,000us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment  
Other basis differences 577,000us-gaap_DeferredTaxLiabilitiesOther 582,000us-gaap_DeferredTaxLiabilitiesOther  
Deferred tax liabilities 47,195,000us-gaap_DeferredIncomeTaxLiabilities 37,901,000us-gaap_DeferredIncomeTaxLiabilities  
Deferred tax assets:      
Net operating loss and credit carryforwards 43,497,000hwtl_DeferredTaxAssetsNetOperatingLossCarryforwardsAndTaxCreditCarryforwards 25,730,000hwtl_DeferredTaxAssetsNetOperatingLossCarryforwardsAndTaxCreditCarryforwards  
Intangible assets 52,022,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 62,626,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets  
Expenses deferred for tax 6,138,000us-gaap_DeferredTaxAssetsTaxDeferredExpense 7,278,000us-gaap_DeferredTaxAssetsTaxDeferredExpense  
Employee benefits 30,029,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits 21,654,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits  
Other basis differences 4,457,000us-gaap_DeferredTaxAssetsOther 4,453,000us-gaap_DeferredTaxAssetsOther  
Gross deferred tax assets 136,143,000us-gaap_DeferredTaxAssetsGross 121,741,000us-gaap_DeferredTaxAssetsGross  
Valuation allowance (482,000)us-gaap_DeferredTaxAssetsValuationAllowance (420,000)us-gaap_DeferredTaxAssetsValuationAllowance (120,336,000)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred tax assets 135,661,000us-gaap_DeferredTaxAssetsNet 121,321,000us-gaap_DeferredTaxAssetsNet  
Deferred tax asset, net 88,466,000us-gaap_DeferredTaxAssetsLiabilitiesNet 83,420,000us-gaap_DeferredTaxAssetsLiabilitiesNet  
Excess tax deductions related to employee stock expense 1,600,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 400,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost  
Federal      
Deferred tax assets:      
Net operating losses available for carry forward 105,900,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember		    
State      
Deferred tax assets:      
Net operating losses available for carry forward $ 113,100,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember