Acquisitions - Pro Forma Information (Details) - 2025 Acquisitions - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | |
|---|---|---|
Jan. 03, 2026 |
Dec. 28, 2024 |
|
| Business Combination [Line Items] | ||
| Revenue | $ 1,129,921 | $ 1,169,569 |
| Net Income Attributable to Kadant | $ 113,637 | $ 113,295 |
| Earnings per Share Attributable to Kadant | ||
| Basic (in dollars per share) | $ 9.65 | $ 9.65 |
| Diluted (in dollars per share) | $ 9.64 | $ 9.62 |
| X | ||||||||||
- Definition Business Acquisition, Pro Forma Earnings Per Share [Abstract] No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Per basic share amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Per diluted share amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of pro forma revenue of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|