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Segment Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) segment | Sep. 30, 2014 USD ($)
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Net sales: | $ 304,994 | $ 234,101 | $ 758,780 | $ 660,093
Income (loss) from operations: | 61,396 | 41,578 | 135,430 | 111,565
Unallocated Corporate Expenses | (5,585) | (1,876) | (17,818) | (9,069)
Total income from operations | 23,394 | 18,392 | 43,565 | 33,398
Residential Products |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Net sales: | 126,995 | 122,100 | 368,459 | 326,483
Income (loss) from operations: | 15,879 | 13,694 | 39,922 | 26,740
Industrial and Infrastructure Products |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Net sales: | 96,636 | 112,329 | 292,821 | 334,613
Income (loss) from operations: | 8,083 | 6,574 | 15,445 | 15,727
RBI |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Net sales: | 81,649 | 0 | 98,733 | 0
Income (loss) from operations: | 5,017 | 0 | 6,016 | 0
Intersegment Sales |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Net sales: | (286) | (328) | (1,233) | (1,003)
Intersegment Elimination | Industrial and Infrastructure Products |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Net sales: | $ 96,350 | $ 112,001 | $ 291,588 | $ 333,610

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