XML 77 R45.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Exit Activity Costs and Asset Impairments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Restructuring and Related Activities [Abstract] |
Schedule of Asset Impairment Charges Related to Restructuring Activities | The following table sets forth the asset impairment charges (recovery) incurred by segment during the years ended December 31 related to the restructuring activities described above (in thousands):
| 2014 |  | 2013 |  | 2012
Residential Products | $ | (580 | ) |  | $ | 1,616 |  |  | $ | 1,932 |
Industrial and Infrastructure Products | 125 |  |  | — |  |  | — |
Corporate | — |  |  | — |  |  | 140 |
Total asset impairment charges (recovery) related to restructuring activities | $ | (455 | ) |  | $ | 1,616 |  |  | $ | 2,072 |
Summary of Exit Activity Costs and Asset Impairments by Segment | The following table provides a summary of exit activity costs and asset impairments by segment for the years ended December 31 (in thousands):
| 2014 |  | 2013 |  | 2012
Residential Products | $ | 752 |  |  | $ | 2,521 |  |  | $ | 2,457 |
Industrial and Infrastructure Products | 919 |  |  | 113 |  |  | 1,407 |
Corporate | — |  |  | — |  |  | 140 |
Total exit activity costs and asset impairments | $ | 1,671 |  |  | $ | 2,634 |  |  | $ | 4,004 |
Summary of Exit Activity Costs and Asset Impairments Recorded in the Consolidated Statements of Operations | The following table provides a summary of where the above exit activity costs and asset impairments are recorded in the consolidated statements of operations for the years ended December 31 (in thousands):
| 2014 |  | 2013 |  | 2012
Cost of sales | $ | 843 |  |  | $ | 2,519 |  |  | $ | 3,741 |
Selling, general, and administrative expense | 828 |  |  | 115 |  |  | 263 |
Total exit activity costs and asset impairments | $ | 1,671 |  |  | $ | 2,634 |  |  | $ | 4,004 |
Reconciliation of Liability for Exit Activity Costs Relating to Facility Consolidation Efforts | The following table reconciles the beginning and ending liability for exit activity costs relating to the Company’s facility consolidation efforts (in thousands):
| 2014 |  | 2013
Balance as of January 1 | $ | 1,092 |  |  | $ | 1,323 |
Exit activity costs recognized | 2,126 |  |  | 1,018 |
Cash payments | (2,643 | ) |  | (1,249 | )
Balance as of December 31 | $ | 575 |  |  | $ | 1,092 |

X
- Definition Schedule Of Asset Impairment Charges Related To Restructuring Activities [Table Text Block] + References No definition available. + Details
Name: | rock_ScheduleOfAssetImpairmentChargesRelatedToRestructuringActivitiesTableTextBlock
Namespace Prefix: | rock_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of costs incurred for restructuring by segment including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References No definition available. + Details
Name: | rock_ScheduleOfRestructuringAndRelatedCostsBySegmentTableTextBlock
Namespace Prefix: | rock_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration