XML 127 R88.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Tax Expense - NOL and Tax Credit Carryforwards (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Federal [Member]    
NOL and Tax Credit Carryforwards [Line Items]    
NOL Carryforward $ 413,700,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
[1] $ 279,800,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
[1]
Tax Credit Carryforwards 59,300,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
35,500,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
NOL and Federal Tax Credit Carryforwards, Valuation Allowance 0ale_OperatingLossAndTaxCreditCarryforwardsValuationAllowance
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
 
State [Member]    
NOL and Tax Credit Carryforwards [Line Items]    
NOL Carryforward 184,700,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
[1] 156,300,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
[1]
Tax Credit Carryforwards 14,700,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
[2] 11,900,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
[2]
State Tax Credit Carryforwards, Valuation Allowance $ 21,700,000us-gaap_TaxCreditCarryforwardValuationAllowance
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
$ 7,700,000us-gaap_TaxCreditCarryforwardValuationAllowance
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
[1] Pretax amounts
[2] Net of a $21.7 million valuation allowance as of December 31, 2014 ($7.7 million as of December 31, 2013).