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Note 6 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
	Jan. 01, 2022	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Depreciation, Total		$ 66.4		$ 69.3	$ 201.2	$ 193.3
Other Noncurrent Liabilities [Member]
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent		1.0			1.0
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Business Combination, Property, Plant, and Equipment Non Cash Gain Loss on Transaction			$ (8.3)
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment		$ 6.8			6.8
Clearwave [Member]
Business Combination, Property, Plant, and Equipment Transferred	$ 280.0
Business Combination, Property, Plant, and Equipment Non Cash Gain Loss on Transaction					$ 22.1

X

- Definition

The amount of non cash gain loss on transaction of property, plant, and equipment under the business combination.

+ References

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The amount of property, plant, and equipment transferred under the business combination.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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