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Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory write-downs &/or asset impairment recoveries, net | $ (1,820) | $ 164 | $ (2,737) | $ 1,074
Exit activity costs | 2,026 | 945 | 5,945 | 1,733
Net asset impairment and exit activity charges (gains) | 206 | 1,109 | 3,208 | 2,807
Residential Products |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory write-downs &/or asset impairment recoveries, net | (126) | 118 | (147) | 806
Exit activity costs | 207 | 140 | 392 | 470
Net asset impairment and exit activity charges (gains) | 81 | 258 | 245 | 1,276
Industrial and Infrastructure Products |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory write-downs &/or asset impairment recoveries, net | (1,694) | 46 | (2,590) | 268
Exit activity costs | 315 | 805 | 2,971 | 1,263
Net asset impairment and exit activity charges (gains) | (1,379) | 851 | 381 | 1,531
Renewable Energy & Conservation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory write-downs &/or asset impairment recoveries, net | 0 | 0 | 0 | 0
Exit activity costs | 1,369 | 0 | 2,419 | 0
Net asset impairment and exit activity charges (gains) | 1,369 | 0 | 2,419 | 0
Corporate |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory write-downs &/or asset impairment recoveries, net | 0 | 0 | 0 | 0
Exit activity costs | 135 | 0 | 163 | 0
Net asset impairment and exit activity charges (gains) | $ 135 | $ 0 | $ 163 | $ 0

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation. + 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 S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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