ACQUISITIONS AND DISCONTINUED OPERATIONS - Narrative (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 02, 2023	Jul. 01, 2023	Jul. 01, 2023	Jul. 02, 2022	Apr. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Assets acquired:
Net loss			$ 36.0	$ 13.0		$ 78.8	$ 24.4
Acquisition-related costs			1.5	$ 0.9		2.1	$ 1.0
Discontinued Operations | Transformer Solutions
Assets acquired:
Payment to purchaser					$ 13.9
Gain on disposal					$ 0.2
ASPEQ Parent Holdings, Inc.
Assets acquired:
Payment for acquisition	$ 421.8
Cash acquired	0.9
Intangible assets	246.1
Gross amount of receivables acquired	17.2
Acquired receivable, fair Value	17.1
Revenues		$ 8.6
Net loss		0.5
Inventory Write-down		$ 1.1
Acquisition-related costs			$ 4.6			$ 5.1
ASPEQ Parent Holdings, Inc. | Customer relationships
Assets acquired:
Intangible assets	$ 142.3
Amortization period	12 years
ASPEQ Parent Holdings, Inc. | Trademarks with indefinite lives (2)
Assets acquired:
Intangible assets	$ 51.5
ASPEQ Parent Holdings, Inc. | Technology
Assets acquired:
Intangible assets	$ 47.8
Amortization period	16 years
ASPEQ Parent Holdings, Inc. | Customer Backlog
Assets acquired:
Intangible assets	$ 4.5
Amortization period	1 year