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v3.21.1

Segment Information - Summary of Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 27, 2021 | Mar. 28, 2020
Summary of segment information [Abstract] |  |
Net sales | $ 818,148 | $ 602,919
Cost of goods sold | 668,418 | 508,715
Depreciation and amortization | 11,755 | 11,039
Selling, general, and administrative expense | 45,435 | 42,752
Asset impairments | 0 | 3,035
Litigation settlement, net | 0 | (21,933)
Operating income | 92,540 | 59,311
Interest expense | (4,469) | (5,379)
Other income (expense), net | 577 | 278
Income before income taxes | 88,648 | 54,210
Operating Segments [Member] |  |
Summary of segment information [Abstract] |  |
Net sales | 823,626 | 609,487
Operating Segments [Member] | Piping Systems [Member] |  |
Summary of segment information [Abstract] |  |
Net sales | 547,748 | 385,013
Cost of goods sold | 450,354 | 319,164
Depreciation and amortization | 6,210 | 5,699
Selling, general, and administrative expense | 24,086 | 20,439
Asset impairments |  | 3,035
Litigation settlement, net |  | 0
Operating income | 67,098 | 36,676
Operating Segments [Member] | Industrial Metals [Member] |  |
Summary of segment information [Abstract] |  |
Net sales | 164,852 | 131,202
Cost of goods sold | 140,891 | 114,797
Depreciation and amortization | 1,743 | 2,002
Selling, general, and administrative expense | 3,371 | 3,221
Asset impairments |  | 0
Litigation settlement, net |  | 0
Operating income | 18,847 | 11,182
Operating Segments [Member] | Climate [Member] |  |
Summary of segment information [Abstract] |  |
Net sales | 111,026 | 93,272
Cost of goods sold | 84,082 | 71,093
Depreciation and amortization | 2,629 | 2,466
Selling, general, and administrative expense | 6,980 | 6,699
Asset impairments |  | 0
Litigation settlement, net |  | 0
Operating income | 17,335 | 13,014
Corporate and Eliminations [Member] |  |
Summary of segment information [Abstract] |  |
Net sales | (5,478) | (6,568)
Cost of goods sold | (6,909) | 3,661
Depreciation and amortization | 1,173 | 872
Selling, general, and administrative expense | 10,998 | 12,393
Asset impairments |  | 0
Litigation settlement, net |  | (21,933)
Operating income | $ (10,740) | $ (1,561)

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