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ACQUISITIONS AND DISCONTINUED OPERATIONS - Results of Operations (Details) $ in Millions	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Oct. 01, 2022 USD ($) project	Sep. 05, 2023 project	Sep. 30, 2023 USD ($) project	Oct. 01, 2022 USD ($) project
Assets acquired:
Loss from discontinued operations, net of tax	$ (56.1)	$ (9.4)		$ (54.7)	$ (17.1)
Number of large power projects | project				2
Discontinued Operations
Assets acquired:
Income (loss) from discontinued operations	(69.3)	(11.7)		$ (68.8)	(21.1)
Income tax benefit	13.2	2.3		14.1	4.0
Loss from discontinued operations, net of tax	(56.1)	(9.4)		(54.7)	(17.1)
Discontinued Operations | DBT
Assets acquired:
Income (loss) from discontinued operations	(69.2)	(5.7)		(68.6)	(14.2)
Income tax benefit	13.2	0.8		14.1	2.3
Loss from discontinued operations, net of tax	(56.0)	(4.9)		(54.5)	(11.9)
Discontinued Operations | ALL Other
Assets acquired:
Income (loss) from discontinued operations	(0.1)	(6.0)		(0.2)	(6.9)
Income tax benefit	0.0	1.5		0.0	1.7
Loss from discontinued operations, net of tax	$ (0.1)	$ (4.5)		$ (0.2)	$ (5.2)
Discontinued Operations, Disposed of by Sale | DBT Technologies
Assets acquired:
Number of large power projects | project		2	2		2

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