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Note 9 - Fixed Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Depreciation, Depletion and Amortization, Nonproduction, Total	$ 206.9	$ 192.2	$ 185.7
Capitalized Computer Software, Amortization	137.5	120.6	100.2
Unamortized Costs Capitalized	59.4	53.5
Asset Impairment Charges, Total	134.0	0.0	0.0
Financial Services Segment [Member]
Asset Impairment Charges, Total	134.0
Software and Software Development Costs [Member]
Depreciation, Depletion and Amortization, Nonproduction, Total	11.7	11.3	$ 12.8
Unamortized Costs Capitalized	433.5	$ 405.8
Software Development [Member] | Financial Services Segment [Member]
Asset Impairment Charges, Total	$ 45.8

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-Topic 360
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-Section 45
-Paragraph 4
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- Definition

Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

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- Definition

This element represents software development costs which had not yet been amortized as of the balance sheet date.

+ References

No definition available.

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