| Schedule of Segment Reporting Information, by Segment | Summarized financial information for the Company’s reportable segments is shown in the following tables, including significant segment expenses that are regularly reviewed by the CODM. 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended June 28, 2025
 |  
|  | Direct selling |  | Hiya direct-to-consumer |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 199,128 |  |  | $ | 33,931 |  |  | $ | 2,789 |  |  | $ | 235,848 |  |  
| Less: |  |  |  |  |  |  |  |  
| Cost of sales | 36,294 |  |  | 12,287 |  |  | 1,603 |  |  | 50,184 |  |  
| Brand Partner incentives | 86,925 |  |  | — |  |  | 115 |  |  | 87,040 |  |  
| 
Selling, general and administrative (2)
 | 62,034 |  |  | 17,920 |  |  | 1,952 |  |  | 81,906 |  |  
| Segment earnings (loss) from operations | $ | 13,875 |  |  | $ | 3,724 |  |  | $ | (881) |  |  | $ | 16,718 |  |  
|  |  |  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  |  |  
| Interest income |  |  |  |  |  |  | 619 |  |  
| Interest expense |  |  |  |  |  |  | (259) |  |  
| Other, net |  |  |  |  |  |  | 1,739 |  |  
| Earnings before income taxes |  |  |  |  |  |  | $ | 18,817 |  | ______________________________ 
(1)The direct selling segment excludes $1,183 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of $4,456 and $309 for the Hiya segment and other category, respectively.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended June 29, 2024
 |  
|  | Direct selling |  |  |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 211,208 |  |  |  |  | $ | 1,661 |  |  | $ | 212,869 |  |  
| Less: |  |  |  |  |  |  |  |  
| Cost of sales | 39,446 |  |  |  |  | 887 |  |  | 40,333 |  |  
| Brand Partner incentives | 90,239 |  |  |  |  | 132 |  |  | 90,371 |  |  
| 
Selling, general and administrative (2)
 | 62,554 |  |  |  |  | 1,771 |  |  | 64,325 |  |  
| Segment earnings (loss) from operations | $ | 18,969 |  |  |  |  | $ | (1,129) |  |  | $ | 17,840 |  |  
|  |  |  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  |  |  
| Interest income |  |  |  |  |  |  | 2,763 |  |  
| Interest expense |  |  |  |  |  |  | (51) |  |  
| Other, net |  |  |  |  |  |  | (349) |  |  
| Earnings before income taxes |  |  |  |  |  |  | $ | 20,203 |  | ______________________________ 
(1)The direct selling segment excludes $558 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of $372 for the other category.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Six Months Ended June 28, 2025
 |  
|  | Direct selling |  | Hiya direct-to-consumer |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 409,579 |  |  | $ | 71,020 |  |  | $ | 4,788 |  |  | $ | 485,387 |  |  
| Less: |  |  |  |  |  |  |  |  
| Cost of sales | 73,474 |  |  | 26,394 |  |  | 2,761 |  |  | 102,629 |  |  
| Brand Partner incentives | 176,768 |  |  | — |  |  | 257 |  |  | 177,025 |  |  
| 
Selling, general and administrative (2)
 | 127,975 |  |  | 41,433 |  |  | 3,936 |  |  | 173,344 |  |  
| Segment earnings (loss) from operations | $ | 31,362 |  |  | $ | 3,193 |  |  | $ | (2,166) |  |  | $ | 32,389 |  |  
|  |  |  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  |  |  
| Interest income |  |  |  |  |  |  | 1,342 |  |  
| Interest expense |  |  |  |  |  |  | (670) |  |  
| Other, net |  |  |  |  |  |  | 2,495 |  |  
| Earnings before income taxes |  |  |  |  |  |  | $ | 35,556 |  | ______________________________ 
(1)The direct selling segment excludes $1,946 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of and $8,911 and $615 for the Hiya segment and other category, respectively.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Six Months Ended June 29, 2024
 |  
|  | Direct selling |  |  |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 437,356 |  |  |  |  | $ | 3,313 |  |  | $ | 440,669 |  |  
| Less: |  |  |  |  |  |  |  |  
| Cost of sales | 81,714 |  |  |  |  | 1,688 |  |  | 83,402 |  |  
| Brand Partner incentives | 185,796 |  |  |  |  | 333 |  |  | 186,129 |  |  
| 
Selling, general and administrative (2)
 | 125,284 |  |  |  |  | 3,341 |  |  | 128,625 |  |  
| Segment earnings (loss) from operations | $ | 44,562 |  |  |  |  | $ | (2,049) |  |  | $ | 42,513 |  |  
|  |  |  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  |  |  
| Interest income |  |  |  |  |  |  | 5,439 |  |  
| Interest expense |  |  |  |  |  |  | (103) |  |  
| Other, net |  |  |  |  |  |  | (535) |  |  
| Earnings before income taxes |  |  |  |  |  |  | $ | 47,314 |  | ______________________________ 
(1)The direct selling segment excludes $978 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of $741 for the other category.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  | Six Months Ended |  
|  | June 28, 2025
 |  | June 29, 2024
 |  | June 28, 2025
 |  | June 29, 2024
 |  
| Depreciation and amortization: |  |  |  |  |  |  |  |  
| Direct selling | $ | 2,949 |  |  | $ | 3,457 |  |  | $ | 6,469 |  |  | $ | 6,256 |  |  
| Hiya direct-to-consumer | 4,468 |  |  | — |  |  | 8,951 |  |  | — |  |  
| Other | 326 |  |  | 356 |  |  | 662 |  |  | 715 |  |  
| Consolidated total | $ | 7,743 |  |  | $ | 3,813 |  |  | $ | 16,082 |  |  | $ | 6,971 |  |  | 
| Schedule of Revenue by Geographic Region | Financial information, presented by geographic region is listed below: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  | Six Months Ended |  
|  | June 28, 2025
 |  | June 29, 2024
 |  | June 28, 2025
 |  | June 29, 2024
 |  
| Net sales to external customers: |  |  |  |  |  |  |  |  
| Asia Pacific |  |  |  |  |  |  |  |  
| Greater China | $ | 113,171 |  |  | $ | 115,513 |  |  | $ | 231,917 |  |  | $ | 243,128 |  |  
| Southeast Asia Pacific | 32,887 |  |  | 35,402 |  |  | 68,607 |  |  | 71,467 |  |  
| North Asia | 17,166 |  |  | 19,710 |  |  | 36,107 |  |  | 41,131 |  |  
| Asia Pacific total | 163,224 |  |  | 170,625 |  |  | 336,631 |  |  | 355,726 |  |  
| 
Americas and Europe (1)
 | 72,624 |  |  | 42,244 |  |  | 148,756 |  |  | 84,943 |  |  
| Consolidated total | $ | 235,848 |  |  | $ | 212,869 |  |  | $ | 485,387 |  |  | $ | 440,669 |  | ______________________________ 
(1)Includes results of the Hiya direct-to-consumer segment.
 | 
| Schedule of Markets Representing Ten Percent Or More of Consolidated Net Sales and Long-Lived Assets | The following table provides further information on markets representing ten percent or more of consolidated net sales and long-lived assets (excluding intangible assets), respectively: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  | Six Months Ended |  
|  | June 28, 2025
 |  | June 29, 2024
 |  | June 28, 2025
 |  | June 29, 2024
 |  
| Net sales: |  |  |  |  |  |  |  |  
| China | $ | 102,105 |  |  | $ | 105,115 |  |  | $ | 209,795 |  |  | $ | 220,869 |  |  
| 
United States (1)
 | 54,082 |  |  | 21,640 |  |  | 112,005 |  |  | 43,804 |  |  
|  |  |  |  |  |  |  |  | ______________________________ 
(1)Includes results of the Hiya direct-to-consumer segment.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  
|  | As of |  
|  | June 28, 2025
 |  | December 28, 2024
 |  
| Long-lived assets: |  |  |  |  
| United States | $ | 80,115 |  |  | $ | 81,459 |  |  
| China | 30,617 |  |  | 29,304 |  |  |