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Income Taxes - Schedule of Net Operating Loss Carryforwards (Details) (USD $)
12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Operating Loss Carryforwards [Line Items]    
Deferred Tax Assets, Valuation Allowance $ 1,588,000us-gaap_DeferredTaxAssetsValuationAllowance $ 3,793,000us-gaap_DeferredTaxAssetsValuationAllowance
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 2,200,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount  
Federal    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforward, tax impact 0azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
1,089,000azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
State    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforward, tax impact 1,919,000azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
1,919,000azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Operating loss carryforwards 31,900,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
 
Foreign    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforward, tax impact 0azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember
1,260,000azz_OperatingLossCarryforwardsTaxImpact
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember
Deferred Tax Asset, Net Operating Loss from Purchase Stock [Member]    
Operating Loss Carryforwards [Line Items]    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 1,000,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
/ us-gaap_ValuationAllowanceByDeferredTaxAssetAxis
= azz_DeferredTaxAssetNetOperatingLossfromPurchaseStockMember
 
Deferred Tax Asset, Foreign Operations [Member]    
Operating Loss Carryforwards [Line Items]    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 1,200,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
/ us-gaap_ValuationAllowanceByDeferredTaxAssetAxis
= azz_DeferredTaxAssetForeignOperationsMember