Income Taxes - Additional Information (Detail) (USD $)
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12 Months Ended |
6 Months Ended |
12 Months Ended |
Dec. 31, 2014
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Dec. 31, 2014
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Jun. 29, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Income Tax Contingency [Line Items] |
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Deferred tax assets, operating loss carryforwards |
$ 377,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
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$ 377,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
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Income tax examination, description |
As of December 31, 2014, with a few exceptions, the Company is no longer subject to U.S. federal, state, and foreign tax examinations by tax authorities for the tax years prior to 2011.
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Paulin [Member] |
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Income Tax Contingency [Line Items] |
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Valuation allowance |
194,000us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_BusinessAcquisitionAxis = hlm_PaulinMember
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194,000us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_BusinessAcquisitionAxis = hlm_PaulinMember
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Increase in valuation allowance for net operating loss carryforwards |
74,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_BusinessAcquisitionAxis = hlm_PaulinMember
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General Business Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Tax credit carryforwards |
294,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_TaxCreditCarryforwardAxis = us-gaap_GeneralBusinessMember
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294,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_TaxCreditCarryforwardAxis = us-gaap_GeneralBusinessMember
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Valuation allowance |
149,000us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_TaxCreditCarryforwardAxis = us-gaap_GeneralBusinessMember
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149,000us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_TaxCreditCarryforwardAxis = us-gaap_GeneralBusinessMember
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Foreign Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Tax credit carryforwards |
675,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_TaxCreditCarryforwardAxis = hlm_ForeignTaxCreditCarryforwardsMember
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675,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_TaxCreditCarryforwardAxis = hlm_ForeignTaxCreditCarryforwardsMember
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Successor [Member] |
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Income Tax Contingency [Line Items] |
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Decrease in the reserve for unrecognized tax benefits |
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30,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Reduction in deferred tax asset due to unrecognized tax benefit |
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(58,000)hlm_IncreaseDecreaseInDeferredTaxAssets / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Predecessor [Member] |
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Income Tax Contingency [Line Items] |
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Decrease in the reserve for unrecognized tax benefits |
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1,559,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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1,538,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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1,438,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Minimum [Member] | General Business Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2016
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Minimum [Member] | Foreign Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2020
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Maximum [Member] | General Business Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2033
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Maximum [Member] | Foreign Tax Credit Carryforwards [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2024
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State and Local Jurisdiction [Member] |
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Income Tax Contingency [Line Items] |
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Aggregate tax benefit |
4,089,000us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
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4,089,000us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
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Valuation allowance |
290,000us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
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290,000us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
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Increase in valuation allowance for net operating loss carryforwards |
72,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
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State and Local Jurisdiction [Member] | Minimum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2015
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State and Local Jurisdiction [Member] | Maximum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2034
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Domestic Tax Authority [Member] |
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Income Tax Contingency [Line Items] |
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Net operating loss carryforwards for tax |
105,867,000us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
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105,867,000us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
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Valuation allowance |
6,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
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6,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
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Decrease in net capital loss carryforward |
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374,000hlm_ChangeInCapitalLossValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
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Domestic Tax Authority [Member] | Minimum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2022
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Domestic Tax Authority [Member] | Maximum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2034
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Foreign Subsidiaries [Member] |
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Income Tax Contingency [Line Items] |
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Net operating loss carryforwards for tax |
1,668,000us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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1,668,000us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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Valuation allowance |
703,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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703,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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Deferred tax asset |
312,000us-gaap_DeferredTaxAssetsGross / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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312,000us-gaap_DeferredTaxAssetsGross / us-gaap_IncomeTaxAuthorityAxis = hlm_ForeignSubsidiariesMember
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Foreign Subsidiaries [Member] | Minimum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2031
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Foreign Subsidiaries [Member] | Maximum [Member] |
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Income Tax Contingency [Line Items] |
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Expiry period of carryforwards |
2034
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Luxembourg's Tax Codes [Member] |
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Income Tax Contingency [Line Items] |
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Indefinite operating loss carry forwards |
$ 1,300,000hlm_IndefiniteOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = hlm_LuxembourgsTaxCodesMember
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