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Business and Summary of Significant Accounting Policies - Revenue Recognition - Additional Information (Details) | 12 Months Ended
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Jan. 02, 2021
Accounting Policies [Abstract] |
Revenue, Performance Obligation, Description of Timing | The deferred revenue and costs related to SleepIQ technology are recognized on a straight-line basis over the product’s estimated life of four years because our inputs are generally expended evenly throughout the performance period.

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- Definition Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 + Details
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