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Commitments and Contingencies - Legal Updates (Details) - USD ($)					3 Months Ended	12 Months Ended
	Dec. 16, 2021	Dec. 02, 2021	Aug. 16, 2019	Feb. 22, 2019	Oct. 30, 2021	Apr. 30, 2021
Other expense
Commitments and Contingencies
Litigation reserve expense						$ 9,300,000
Discontinued Operations
Commitments and Contingencies
Amount of alleged damages				$ 6,500,000
EES Business
Commitments and Contingencies
Litigation reserve expense					$ 10,000,000
Amount of existing claims settled	$ 20,000,000	$ 20,000,000
Payment period	24 months
Holdback | Discontinued Operations
Commitments and Contingencies
Amount of alleged damages			$ 6,500,000

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