Segment Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Segment information | |||||||||||
| Percentage of net sales | 100.00% | 100.00% | 100.00% | ||||||||
| Net sales | $ 639,547 | $ 647,289 | $ 605,969 | $ 491,444 | $ 501,401 | $ 489,044 | $ 474,458 | $ 441,363 | $ 2,384,249 | $ 1,906,266 | $ 1,742,850 |
| Operating profit | 65,161 | $ 66,217 | $ 43,681 | $ 33,893 | 49,970 | $ 49,562 | $ 40,796 | $ (3,463) | 208,953 | 136,864 | 121,604 |
| Significant legal settlement | (30,000) | ||||||||||
| Other expense, net | (28,129) | (8,824) | (5,331) | ||||||||
| Income before income taxes | 180,824 | 128,040 | 116,273 | ||||||||
| Property Additions | 87,414 | 29,421 | 14,365 | ||||||||
| Depreciation and Amortization | 39,419 | 16,453 | $ 12,011 | ||||||||
| Total Assets | 2,454,531 | 1,749,549 | $ 2,454,531 | $ 1,749,549 | |||||||
| Insulation | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 71.00% | 72.00% | 71.00% | ||||||||
| Rain gutters | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 6.00% | 7.00% | 7.00% | ||||||||
| Glass and windows | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 3.00% | 1.00% | 1.00% | ||||||||
| Accessories | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 4.00% | 5.00% | 5.00% | ||||||||
| Afterpaint | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 4.00% | 3.00% | 2.00% | ||||||||
| All other | |||||||||||
| Segment information | |||||||||||
| Percentage of net sales | 12.00% | 12.00% | 14.00% | ||||||||
| Installation | |||||||||||
| Segment information | |||||||||||
| Significant legal settlement | $ (30,000) | ||||||||||
| Property Additions | $ 69,497 | 21,956 | $ 7,584 | ||||||||
| Depreciation and Amortization | 31,661 | 12,208 | 8,149 | ||||||||
| Total Assets | 1,618,032 | 1,061,418 | 1,618,032 | 1,061,418 | |||||||
| Distribution | |||||||||||
| Segment information | |||||||||||
| Property Additions | 11,121 | 5,845 | 3,348 | ||||||||
| Depreciation and Amortization | 6,616 | 3,561 | 3,604 | ||||||||
| Total Assets | 698,337 | 599,503 | 698,337 | 599,503 | |||||||
| Operating Segment | |||||||||||
| Segment information | |||||||||||
| Operating profit | 254,826 | 161,586 | 142,406 | ||||||||
| Operating Segment | Installation | |||||||||||
| Segment information | |||||||||||
| Net sales | 1,680,967 | 1,281,296 | 1,150,168 | ||||||||
| Operating profit | 196,986 | 139,316 | 97,140 | ||||||||
| Operating Segment | Distribution | |||||||||||
| Segment information | |||||||||||
| Net sales | 820,309 | 719,759 | 676,672 | ||||||||
| Operating profit | 78,739 | 68,733 | 59,654 | ||||||||
| Intercompany Eliminations and Other Adjustments | |||||||||||
| Segment information | |||||||||||
| Net sales | (117,027) | (94,789) | (83,990) | ||||||||
| Operating profit | (20,899) | (16,463) | (14,388) | ||||||||
| Corporate | |||||||||||
| Segment information | |||||||||||
| General corporate expense, net | (45,873) | (24,722) | (20,802) | ||||||||
| Property Additions | 6,796 | 1,620 | 3,433 | ||||||||
| Depreciation and Amortization | 1,142 | 684 | $ 258 | ||||||||
| Total Assets | $ 138,162 | $ 88,628 | $ 138,162 | $ 88,628 | |||||||