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Segment Information - Summary of Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 543,839 | $ 608,602 | $ 666,394 | $ 611,781 | $ 559,087 | $ 645,958 | $ 662,773 | $ 640,060 | $ 2,430,616 | $ 2,507,878 | $ 2,266,073 | [1]
Cost of goods sold |  |  |  |  |  |  |  |  | 2,035,610 | 2,150,400 | 1,940,617 | [1]
Depreciation and amortization |  |  |  |  |  |  |  |  | 42,693 | 39,555 | 33,944 | [1]
Selling, general, and administrative expense |  |  |  |  |  |  |  |  | 162,358 | 148,888 | 140,730 | [1]
Gain on sale of assets, net |  |  |  |  |  |  |  |  | (963) | (253) | (1,491) | [1],[2]
(Gain) loss on sale of assets, net |  |  |  |  |  |  |  |  | 0 | 0 | (1,491) |
Insurance recovery |  |  |  |  |  |  |  |  | 485 | 3,681 | 0 | [1]
Impairment charges |  |  |  |  |  |  |  |  | 0 | 0 | 1,466 | [1],[2]
Operating income |  |  |  |  |  |  |  |  | 191,403 | 172,969 | 150,807 | [1]
Interest expense |  |  |  |  |  |  |  |  | (25,683) | (25,199) | (19,502) | [1]
Environmental expense |  |  |  |  |  |  |  |  | (1,321) | (1,320) | (7,284) | [1]
Other income, net |  |  |  |  |  |  |  |  | 1,684 | 3,967 | 2,951 | [1]
Income before income taxes |  |  |  |  |  |  |  |  | 166,083 | 150,417 | 126,972 | [1]
Expenditures for long-lived assets |  |  |  |  |  |  |  |  | 31,162 | 124,936 | 48,155 |
Impairment charges |  |  |  |  |  |  |  |  | 0 | 0 | 1,466 | [1],[2]
Segment assets | 1,370,940 |  |  |  | 1,369,549 |  |  |  | 1,370,940 | 1,369,549 | 1,320,173 |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 2,453,044 | 2,525,763 | 2,298,529 |
Corporate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (22,428) | (17,885) | (32,456) |
Cost of goods sold |  |  |  |  |  |  |  |  | (25,230) | (18,152) | (34,368) |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,285 | 3,114 | 2,138 |
Selling, general, and administrative expense |  |  |  |  |  |  |  |  | 44,444 | 43,597 | 43,252 |
Gain on sale of assets, net |  |  |  |  |  |  |  |  | 0 | 3,141 |  |
(Gain) loss on sale of assets, net |  |  |  |  |  |  |  |  |  |  | 0 |
Insurance recovery |  |  |  |  |  |  |  |  | 0 | 0 |  |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Operating income |  |  |  |  |  |  |  |  | (44,927) | (49,585) | (43,478) |
Expenditures for long-lived assets |  |  |  |  |  |  |  |  | 2,711 | 37 | 22,518 |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Segment assets | 162,921 |  |  |  | 130,670 |  |  |  | 162,921 | 130,670 | 232,609 |
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (22,428) | (17,885) | (32,456) |
Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,542,456 | 1,645,633 | 1,564,950 |
Cost of goods sold |  |  |  |  |  |  |  |  | 1,313,980 | 1,426,729 | 1,369,161 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 22,621 | 23,304 | 21,777 |
Selling, general, and administrative expense |  |  |  |  |  |  |  |  | 75,170 | 74,864 | 74,441 |
Gain on sale of assets, net |  |  |  |  |  |  |  |  | (1,194) | (2,093) |  |
(Gain) loss on sale of assets, net |  |  |  |  |  |  |  |  |  |  | (1,491) |
Insurance recovery |  |  |  |  |  |  |  |  | 0 | 0 |  |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 1,466 |
Operating income |  |  |  |  |  |  |  |  | 131,879 | 122,829 | 99,596 |
Expenditures for long-lived assets |  |  |  |  |  |  |  |  | 15,505 | 31,362 | 18,124 |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 1,466 |
Segment assets | 796,262 |  |  |  | 818,303 |  |  |  | 796,262 | 818,303 | 801,468 |
Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 554,372 | 651,061 | 602,131 |
Cost of goods sold |  |  |  |  |  |  |  |  | 473,010 | 559,367 | 506,973 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 7,489 | 7,568 | 7,516 |
Selling, general, and administrative expense |  |  |  |  |  |  |  |  | 12,359 | 13,501 | 13,278 |
Gain on sale of assets, net |  |  |  |  |  |  |  |  | 275 | (1,301) |  |
(Gain) loss on sale of assets, net |  |  |  |  |  |  |  |  |  |  | 0 |
Insurance recovery |  |  |  |  |  |  |  |  | 485 | (3,681) |  |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Operating income |  |  |  |  |  |  |  |  | 61,724 | 75,607 | 74,364 |
Expenditures for long-lived assets |  |  |  |  |  |  |  |  | 9,101 | 8,066 | 5,322 |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Segment assets | 161,904 |  |  |  | 173,725 |  |  |  | 161,904 | 173,725 | 212,638 |
Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 356,216 | 229,069 | 131,448 |
Cost of goods sold |  |  |  |  |  |  |  |  | 273,850 | 182,456 | 98,851 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 9,298 | 5,569 | 2,513 |
Selling, general, and administrative expense |  |  |  |  |  |  |  |  | 30,385 | 16,926 | 9,759 |
Gain on sale of assets, net |  |  |  |  |  |  |  |  | (44) | 0 |  |
(Gain) loss on sale of assets, net |  |  |  |  |  |  |  |  |  |  | 0 |
Insurance recovery |  |  |  |  |  |  |  |  | 0 | 0 |  |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Operating income |  |  |  |  |  |  |  |  | 42,727 | 24,118 | 20,325 |
Expenditures for long-lived assets |  |  |  |  |  |  |  |  | 3,845 | 85,471 | 2,191 |
Impairment charges |  |  |  |  |  |  |  |  |  |  | 0 |
Segment assets | $ 249,853 |  |  |  | $ 246,851 |  |  |  | 249,853 | 246,851 | 73,458 |
Tube and fittings [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,271,558 | 1,352,875 | 1,238,258 |
Tube and fittings [Member] | Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,271,558 | 1,352,875 | 1,238,258 |
Tube and fittings [Member] | Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Tube and fittings [Member] | Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Brass rod and forgings [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 425,573 | 501,472 | 461,603 |
Brass rod and forgings [Member] | Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Brass rod and forgings [Member] | Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 425,573 | 501,472 | 461,603 |
Brass rod and forgings [Member] | Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
OEM components, tube and assemblies [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 210,858 | 222,272 | 277,538 |
OEM components, tube and assemblies [Member] | Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 29,103 | 29,578 | 94,383 |
OEM components, tube and assemblies [Member] | Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 48,104 | 53,581 | 51,707 |
OEM components, tube and assemblies [Member] | Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 133,651 | 139,113 | 131,448 |
Valves and plumbing specialties [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 241,795 | 263,180 | 232,309 |
Valves and plumbing specialties [Member] | Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 241,795 | 263,180 | 232,309 |
Valves and plumbing specialties [Member] | Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Valves and plumbing specialties [Member] | Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other products [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 303,260 | 185,964 | 88,821 |
Other products [Member] | Piping Systems [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other products [Member] | Industrial Metals [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 80,695 | 96,008 | 88,821 |
Other products [Member] | Climate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 222,565 | $ 89,956 | $ 0 |
[1] | The Consolidated Statement of Income for 2017 has been adjusted to reflect the adoption of ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost in 2018. The components of net periodic benefit cost (income) other than the service cost component are included in other income, net in the Consolidated Statements of Income.
[2] | The Consolidated Statements of Cash Flows for prior periods have been adjusted to reflect the adoption of ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The Consolidated Statements of Cash Flows reflect the changes during the periods in the total of cash, cash equivalents, and restricted cash. Therefore, restricted cash activity is included with cash when reconciling the beginning-of-period and end-of-period total amounts shown.

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