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Number Of Business Groups Consolidated

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The net result for the period of deducting operating expenses from operating revenues.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Industry Segments and Geographic Area Information - Narrative (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) group segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Net sales	$ 1,100.1	$ 1,083.4	$ 1,054.3	$ 956.3	$ 917.1	$ 970.3	$ 837.5	$ 957.6	$ 4,194.1	$ 3,682.5	$ 3,946.6
Operating Income									532.3	494.5	526.7
Export sales from United States									227.0	233.8	256.8
International
Segment Reporting Information [Line Items]
Net sales									384.3	325.6	400.5
Operating Income									$ 92.7	$ 58.2	$ 68.0
International \| Net Sales Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									9.00%	9.00%	10.00%
International \| Long-lived assets Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									11.00%	11.00%	11.00%
Canada \| Net Sales Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									36.00%
Canada \| Long-lived assets Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									15.00%
United Kingdom \| Net Sales Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									29.00%
United Kingdom \| Long-lived assets Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									34.00%
Spain \| Long-lived assets Total \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage									20.00%
Electrical Solutions
Segment Reporting Information [Line Items]
Number of business groups consolidated \| group									3
Number of operating segments \| segment									1
Net sales									$ 1,859.7	$ 1,603.1	$ 1,776.6
Electrical Solutions \| International
Segment Reporting Information [Line Items]
Net sales									254.8	$ 214.1	$ 267.5
Electrical Solutions \| Hubbell Gas Connectors and Accessories Business
Segment Reporting Information [Line Items]
Net sales									157.1
Operating Income									$ 19.4