GOODWILL AND INTANGIBLE ASSETS, NET - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 393,493		$ 393,493		$ 393,493
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	(826)		(826)		845
Accumulated Amortization	77,603		77,603		56,028
Net Amount	315,064		315,064		338,310
Amortization of Intangible Assets	7,156	$ 5,486	21,504	$ 16,560
Trade names and trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	148,100		148,100		148,100
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	(578)		(578)		439
Accumulated Amortization	21,333		21,333		16,382
Net Amount	126,189		126,189		132,157
Patented technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,126		16,126		16,126
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	2		2		65
Accumulated Amortization	6,520		6,520		5,205
Net Amount	9,608		9,608		10,986
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,000		13,000		13,000
Accumulated Amortization	722		722		72
Net Amount	12,278		12,278		12,928
Pool designs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,628		13,628		13,628
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	(276)		(276)		265
Accumulated Amortization	1,803		1,803		1,101
Net Amount	11,549		11,549		12,792
Franchise relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,187		1,187		1,187
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	25		25		54
Accumulated Amortization	990		990		767
Net Amount	222		222		474
Dealer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	197,376		197,376		197,376
Finite Lived Intangible Assets, Accumulated Foreign Currency Translation Gain (Loss)	1		1		22
Accumulated Amortization	42,760		42,760		30,838
Net Amount	154,617		154,617		166,560
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,600		1,600		1,600
Accumulated Amortization	1,600		1,600		160
Net Amount					1,440
Non-competition agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,476		2,476		2,476
Accumulated Amortization	1,875		1,875		1,503
Net Amount	$ 601		$ 601		$ 973