v3.25.2
Segment Information and Geographic Data - Schedule of Net Sales (Revenue), Gross Profit, and Operating Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Segment Reporting Information [Line Items]        
Net sales $ 1,814,564 $ 1,506,671 $ 3,349,663 $ 2,888,320
Cost of goods sold 747,552 643,780 1,398,106 1,223,290
Gross profit 1,067,012 862,891 1,951,557 1,665,030
Research and development expense 276,663 243,151 544,783 485,686
Selling, general and administrative expenses 318,054 277,713 601,655 538,907
Operating income (loss) 472,295 342,027 805,119 640,437
Fitness Segment [Member]        
Segment Reporting Information [Line Items]        
Net sales 605,425 428,404 990,147 771,296
Cost of goods sold 240,755 183,156 405,334 331,246
Gross profit 364,670 245,248 584,813 440,050
Research and development expense 52,696 45,024 103,153 88,814
Selling, general and administrative expenses 114,344 92,614 206,316 175,493
Operating income (loss) 197,630 107,610 275,344 175,743
Outdoor Segment [Member]        
Segment Reporting Information [Line Items]        
Net sales 490,357 439,872 928,853 806,065
Cost of goods sold 165,928 155,658 321,889 279,112
Gross profit 324,429 284,214 606,964 526,953
Research and development expense 66,997 58,892 130,060 115,562
Selling, general and administrative expenses 99,551 89,730 190,236 168,848
Operating income (loss) 157,881 135,592 286,668 242,543
Aviation Segment [Member]        
Segment Reporting Information [Line Items]        
Net sales 249,366 218,253 472,481 435,108
Cost of goods sold 63,894 56,887 119,107 111,116
Gross profit 185,472 161,366 353,374 323,992
Research and development expense 85,126 77,894 169,324 155,541
Selling, general and administrative expenses 36,963 32,987 72,311 65,832
Operating income (loss) 63,383 50,485 111,739 102,619
Marine Segment [Member]        
Segment Reporting Information [Line Items]        
Net sales 299,262 272,953 618,699 599,689
Cost of goods sold 134,924 125,166 270,428 272,650
Gross profit 164,338 147,787 348,271 327,039
Research and development expense 46,920 39,362 90,907 78,398
Selling, general and administrative expenses 54,497 48,533 107,579 101,058
Operating income (loss) 62,921 59,892 149,785 147,583
Auto OEM Segment [Member]        
Segment Reporting Information [Line Items]        
Net sales 170,154 147,189 339,483 276,162
Cost of goods sold 142,051 122,913 281,348 229,166
Gross profit 28,103 24,276 58,135 46,996
Research and development expense 24,924 21,979 51,339 47,371
Selling, general and administrative expenses 12,699 13,849 25,213 27,676
Operating income (loss) $ (9,520) $ (11,552) $ (18,417) $ (28,051)