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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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|
|
|
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| Total Assets |
$ 1,903,013us-gaap_Assets
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
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| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
18,485us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
33,030us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
| 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
|
|
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| 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
|
|
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
696us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= hlm_AllPointsSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
|
| 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
|
|
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
3,186us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_CA
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
|
| 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
|
|
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
1,396us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_MX
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
|
| 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: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
15us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_AU
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
|
|
|
|
|
| Predecessor [Member] |
|
|
|
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| Assets |
|
|
|
|
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| Total Assets |
|
|
1,264,856us-gaap_Assets
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
33,030us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
34,969us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
65,548us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
12,027us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
| Predecessor [Member] | United States, Excluding All Points [Member] |
|
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| Assets |
|
|
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| Total Assets |
|
|
936,008us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= hlm_UnitedStatesExcludingAllPointsSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
|
27,632us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= hlm_UnitedStatesExcludingAllPointsSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| Predecessor [Member] | All Points [Member] |
|
|
|
|
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| Assets |
|
|
|
|
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| Total Assets |
|
|
8,379us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= hlm_AllPointsSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
|
714us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= hlm_AllPointsSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| 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: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
|
5,039us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_CA
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| 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
|
|
|
| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
|
1,570us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_MX
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
|
| Predecessor [Member] | Australia [Member] |
|
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|
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| Assets |
|
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| Total Assets |
|
|
1,599us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_AU
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
|
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| Cash & cash equivalents: |
|
|
|
|
|
| Consolidated cash & cash equivalents |
|
|
$ 14us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_AU
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
|
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