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v3.10.0.1

Subsequent Events - (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 02, 2019 USD ($) | Dec. 31, 2018 USD ($) Employee | Dec. 29, 2018 USD ($) | Dec. 29, 2018 USD ($) | Dec. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Subsequent Event [Line Items] |  |  |  |  |  |
Acquisition transaction costs |  |  |  | $ 1,321,000 | $ 5,375,000 | $ 1,832,000
Syntron Material Handling Group, LLC | Subsequent event |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Purchase price | $ 179,000,000 |  |  |  |  |
Revenues |  | $ 89,365,000 |  |  |  |
Number of employees | Employee |  | 250 |  |  |  |
Selling, general and administrative expenses | Syntron Material Handling Group, LLC |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Acquisition transaction costs |  |  | $ 1,321,000 |  |  |
Revolving credit facility | 2018 Credit Agreement | Subsequent event |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Principal amount |  | $ 180,000,000 |  |  |  |

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