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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 2.6	$ 2.1
Properties and equipment, accumulated depreciation	155.6	151.6
Rental Equipment, Accumulated Depreciation	45.3	43.8
Intangible assets, accumulated amortization	$ 45.9	$ 42.7
Common stock, par value (usd per share)	$ 1
Common stock, shares authorized	90.0
Common stock, shares issued	69.1	68.9
Treasury stock, shares	8.5	8.0

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Accumulated Depreciation on Rental Equipment Available for Operating Leases

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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