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Fair Value Measurements - Roll-Forward of Fair Value of Recurring Level 3 Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019	[1]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration liability, beginning balance	$ 4.3		$ 6.7
Foreign currency translation	0.0		0.2
Total losses included in earnings	0.0		0.2
Contingent consideration liability, ending balance	$ 4.3		$ 7.1
Settlements of contingent consideration liabilities		$ 7.6
[1] Activity in three months ended March 31, 2019 relates to a contingent obligation to provide additional consideration to the former owners of Joe Johnson Equipment, Inc. and Joe Johnson Equipment (USA), Inc. based on the achievement of specified financial results over the three-year period following the closing of the acquisition. During the third quarter of 2019, the Company paid $7.6 million to settle this contingent consideration liability.

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Foreign Currency Adjustment

+ References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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