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Business Segment Information - Summary of Segment Information (Details) $ in Thousands | 3 Months Ended
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Apr. 03, 2021 USD ($) Segment | Mar. 28, 2020 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | Segment | 3 |
Revenue |  |
Revenues | $ 172,463 | $ 159,127
Income Before Provision for Income Taxes |  |
Total operating income | 23,427 | 19,655
Interest expense, net | (1,046) | (2,408)
Other expense, net | (24) | (32)
Income Before Provision for Income Taxes | 22,357 | 17,215
Capital Expenditures |  |
Capital expenditures | 2,259 | 2,686
Operating Segment | Flow Control |  |
Revenue |  |
Revenues | 63,754 | 57,149
Income Before Provision for Income Taxes |  |
Total operating income | 16,443 | 13,330
Capital Expenditures |  |
Capital expenditures | 334 | 821
Operating Segment | Industrial Processing |  |
Revenue |  |
Revenues | 69,154 | 64,709
Income Before Provision for Income Taxes |  |
Total operating income | 11,133 | 9,436
Capital Expenditures |  |
Capital expenditures | 1,804 | 1,464
Operating Segment | Material Handling |  |
Revenue |  |
Revenues | 39,555 | 37,269
Income Before Provision for Income Taxes |  |
Total operating income | 4,443 | 4,134
Capital Expenditures |  |
Capital expenditures | 121 | 398
Corporate |  |
Income Before Provision for Income Taxes |  |
Total operating income | (8,592) | (7,245)
Capital Expenditures |  |
Capital expenditures | $ 0 | $ 3

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