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Acquisitions and Disposition - Narrative (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 02, 2022 | Mar. 07, 2022 | Oct. 01, 2023 | Jul. 02, 2023 | Jan. 01, 2023 | Oct. 02, 2022 | Oct. 01, 2023 | Oct. 02, 2022 | Jan. 01, 2023
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  | $ 0.0 |  | $ 10.3 | $ 30.7 | $ 0.0 | $ 30.7 |
Pediatric Therapeutic Services |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Ownership percentage acquired | 100.00% |  |  |  |  |  |  |  |
Purchase price of acquisition | $ 82.1 |  |  |  |  |  |  |  |
Purchase price paid at closing | 85.7 |  |  |  |  |  |  |  |
Additional consideration payable | $ 1.1 |  |  |  |  |  |  |  |
Payment for contingent consideration liability, investing activities |  |  |  | $ 1.0 |  | $ 0.1 |  |  |
Pro forma information, revenue of acquiree since acquisition date, actual |  |  |  |  |  |  | 37.4 |  |
Pro forma information, earnings or loss of acquiree since acquisition date, actual |  |  |  |  |  |  | 5.2 |  |
RocketPower |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Ownership percentage acquired |  | 100.00% |  |  |  |  |  |  |
Purchase price of acquisition |  | $ 59.3 |  |  |  |  |  |  |
Purchase price paid at closing |  | 61.8 |  |  |  |  |  |  |
Additional consideration payable |  | 1.1 |  |  |  |  |  |  |
Contingent consideration |  | 0.6 |  |  |  |  |  |  |
Contingent consideration, maximum |  | $ 31.8 |  |  |  |  |  |  |
Pro forma information, revenue of acquiree since acquisition date, actual |  |  |  |  |  |  | 5.8 |  |
Pro forma information, earnings or loss of acquiree since acquisition date, actual |  |  |  |  |  |  | (4.5) |  |
Business acquisition, goodwill, expected tax deductible amount |  |  | $ 27.5 |  |  |  | $ 27.5 |  |
Goodwill impairment charge |  |  |  |  |  |  |  |  | $ 41.0

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