Goodwill and Other Intangible Assets - Summary of Goodwill Amounts by Reporting Unit (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
---|---|
Dec. 31, 2014
|
|
Goodwill [Line Items] | |
Goodwill, Beginning balance | $ 466,227us-gaap_Goodwill |
Acquisitions | 158,643us-gaap_GoodwillAcquiredDuringPeriod |
Dispositions | 0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit |
Other | (3,310)us-gaap_GoodwillTranslationAdjustments |
Goodwill, Ending balance | 621,560us-gaap_Goodwill |
United States, Excluding All Points [Member] | |
Goodwill [Line Items] | |
Goodwill, Beginning balance |
446,382us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember |
Acquisitions |
134,038us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember |
Dispositions |
0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember |
Goodwill, Ending balance |
580,420us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = hlm_UnitedStatesExcludingAllPointsSegmentMember |
All Points [Member] | |
Goodwill [Line Items] | |
Goodwill, Beginning balance |
58us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember |
Acquisitions |
3,302us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember |
Dispositions |
0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember |
Goodwill, Ending balance |
3,360us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = hlm_AllPointsSegmentMember |
Canada [Member] | |
Goodwill [Line Items] | |
Goodwill, Beginning balance |
12,785us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA |
Acquisitions |
22,695us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementGeographicalAxis = country_CA |
Dispositions |
0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementGeographicalAxis = country_CA |
Other |
(2,636)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = country_CA |
Goodwill, Ending balance |
32,844us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA |
Mexico [Member] | |
Goodwill [Line Items] | |
Goodwill, Beginning balance |
7,002us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_MX |
Acquisitions |
(1,392)us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementGeographicalAxis = country_MX |
Dispositions |
0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementGeographicalAxis = country_MX |
Other |
(674)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = country_MX |
Goodwill, Ending balance |
4,936us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_MX |
Australia [Member] | |
Goodwill [Line Items] | |
Dispositions |
$ 0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementGeographicalAxis = country_AU |
X | ||||||||||
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Definition
Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|