Segment Reporting and Geographic Information - Assets by Segment (Detail) (USD $) In Thousands, unless otherwise specified
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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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Dec. 31, 2011
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Successor [Member] |
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Assets |
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Total Assets |
$ 1,903,013us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
18,485us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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33,030us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Successor [Member] | United States, Excluding All Points [Member] |
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Assets |
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Total Assets |
1,522,371us-gaap_Assets / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
13,192us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Successor [Member] | All Points [Member] |
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Assets |
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Total Assets |
16,108us-gaap_Assets / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
696us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Successor [Member] | Canada [Member] |
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Assets |
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Total Assets |
346,691us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_CA / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
3,186us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_CA / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Successor [Member] | Mexico [Member] |
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Assets |
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Total Assets |
15,886us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_MX / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
1,396us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_MX / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Successor [Member] | Australia [Member] |
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Assets |
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Total Assets |
1,957us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_AU / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
15us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_AU / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
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Predecessor [Member] |
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Assets |
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Total Assets |
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1,264,856us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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33,030us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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34,969us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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65,548us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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12,027us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Predecessor [Member] | United States, Excluding All Points [Member] |
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Assets |
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Total Assets |
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936,008us-gaap_Assets / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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27,632us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Predecessor [Member] | All Points [Member] |
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Assets |
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Total Assets |
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8,379us-gaap_Assets / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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714us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Predecessor [Member] | Canada [Member] |
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Assets |
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Total Assets |
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300,906us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_CA / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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5,039us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_CA / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Predecessor [Member] | Mexico [Member] |
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Assets |
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Total Assets |
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17,964us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_MX / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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1,570us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_MX / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Predecessor [Member] | Australia [Member] |
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Assets |
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Total Assets |
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1,599us-gaap_Assets / us-gaap_StatementGeographicalAxis = country_AU / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cash & cash equivalents: |
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Consolidated cash & cash equivalents |
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$ 14us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementGeographicalAxis = country_AU / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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