DISCONTINUED OPERATIONS - Summarized Results of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net (loss) income including noncontrolling interest			$ 2,170.3	$ (69.7)
Net (loss) income from discontinued operations attributable to noncontrolling interest	$ (0.3)	$ (0.3)	2.2	(0.4)
Net (loss) income from discontinued operations, net of tax	(2,163.9)	25.2	(2,172.5)	70.1
ChampionX \| Discontinued Operations, Disposed of By Sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales	397.7	590.2	958.5	1,170.9
Cost of sales (including special charges)	305.4	427.8	702.1	842.0
Selling, general and administrative expenses	74.0	102.7	180.5	214.8
Special (gains) and charges	2,185.2	25.6	2,221.7	26.4
Operating (loss) income	(2,166.9)	34.1	(2,145.8)	87.7
Other (income) expense	0.1		0.3
Interest expense (income), net	0.3	0.1	0.2	0.3
(Loss) income before income taxes	(2,167.3)	34.0	(2,146.3)	87.4
Provision for income taxes	(3.1)	9.1	24.0	17.7
Net (loss) income including noncontrolling interest	(2,164.2)	24.9	(2,170.3)	69.7
Net (loss) income from discontinued operations attributable to noncontrolling interest	(0.3)	(0.3)	2.2	(0.4)
Net (loss) income from discontinued operations, net of tax	(2,163.9)	25.2	(2,172.5)	70.1
Special (gains) and charges, including non-controlling interest	2,186.1		2,222.7
ChampionX \| Discontinued Operations, Disposed of By Sale \| Product and sold equipment
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales	352.9	532.1	858.9	1,058.6
Cost of sales (including special charges)	270.5	383.7	621.7	753.2
ChampionX \| Discontinued Operations, Disposed of By Sale \| Service and lease equipment
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales	44.8	58.1	99.6	112.3
Cost of sales (including special charges)	$ 34.9	$ 44.1	$ 80.4	$ 88.8

Amount of interest expense, net attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of other (income) expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of other expense (income) that is infrequent in occurrence or unusual in nature attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of selling, general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation.

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