Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 26, 2021	Jun. 27, 2021	Mar. 28, 2021	Dec. 31, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 1,147,479	$ 1,060,177	$ 1,019,953	$ 850,483	$ 772,613	$ 700,707	$ 424,045	$ 589,232	$ 4,078,092	$ 2,486,597	$ 2,337,082
Recreational Vehicle
Disaggregation of Revenue [Line Items]
Net sales									2,404,442	1,392,208	1,287,193
Marine
Disaggregation of Revenue [Line Items]
Net sales									665,265	338,661	328,539
Manufactured Housing
Disaggregation of Revenue [Line Items]
Net sales									545,063	432,363	436,786
Industrial
Disaggregation of Revenue [Line Items]
Net sales									463,322	323,365	284,564
Manufacturing
Disaggregation of Revenue [Line Items]
Net sales									2,930,466	1,729,451	1,642,263
Manufacturing \| Recreational Vehicle
Disaggregation of Revenue [Line Items]
Net sales									1,617,852	938,301	897,848
Manufacturing \| Marine
Disaggregation of Revenue [Line Items]
Net sales									633,848	324,250	316,781
Manufacturing \| Manufactured Housing
Disaggregation of Revenue [Line Items]
Net sales									261,856	180,136	176,665
Manufacturing \| Industrial
Disaggregation of Revenue [Line Items]
Net sales									416,910	286,764	250,969
Distribution
Disaggregation of Revenue [Line Items]
Net sales									1,147,626	757,146	694,819
Distribution \| Recreational Vehicle
Disaggregation of Revenue [Line Items]
Net sales									786,590	453,907	389,345
Distribution \| Marine
Disaggregation of Revenue [Line Items]
Net sales									31,417	14,411	11,758
Distribution \| Manufactured Housing
Disaggregation of Revenue [Line Items]
Net sales									283,207	252,227	260,121
Distribution \| Industrial
Disaggregation of Revenue [Line Items]
Net sales									$ 46,412	$ 36,601	$ 33,595