v3.25.1
Segment Information and Geographic Data - Schedule of Net Sales (Revenue), Gross Profit, and Operating Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Segment Reporting Information [Line Items]    
Net sales $ 1,535,099 $ 1,381,649
Cost of goods sold 650,554 579,510
Gross profit 884,545 802,139
Research and development expense 268,120 242,535
Selling, general and administrative expenses 283,601 261,194
Operating income (loss) 332,824 298,410
Fitness Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 384,722 342,892
Cost of goods sold 164,580 148,090
Gross profit 220,142 194,802
Research and development expense 50,457 43,789
Selling, general and administrative expenses 91,973 82,880
Operating income (loss) 77,712 68,133
Outdoor Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 438,496 366,193
Cost of goods sold 155,960 123,454
Gross profit 282,536 242,739
Research and development expense 63,063 56,671
Selling, general and administrative expenses 90,685 79,118
Operating income (loss) 128,788 106,950
Aviation Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 223,114 216,855
Cost of goods sold 55,212 54,229
Gross profit 167,902 162,626
Research and development expense 84,198 77,647
Selling, general and administrative expenses 35,348 32,845
Operating income (loss) 48,356 52,134
Marine Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 319,438 326,736
Cost of goods sold 135,505 147,484
Gross profit 183,933 179,252
Research and development expense 43,986 39,036
Selling, general and administrative expenses 53,082 52,524
Operating income (loss) 86,865 87,692
Auto OEM Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 169,329 128,973
Cost of goods sold 139,297 106,253
Gross profit 30,032 22,720
Research and development expense 26,416 25,392
Selling, general and administrative expenses 12,513 13,827
Operating income (loss) $ (8,897) $ (16,499)