Discontinued Operations - Schedule of Amounts Included in Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings (loss) from discontinued operations, net of tax	$ (2.9)	$ 49.0	$ (4.1)	$ 170.3
Gain on disposition of discontinued operations, net of tax	4.5	1.1	8.4	1,707.7
Net earnings from discontinued operations	1.6	50.1	4.3	1,878.0
Held-for-sale or Disposed of by Sale | TransCore and Zetec
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues		0.0		100.4
Cost of sales		0.0		71.2
Gross profit		0.0		29.2
Selling, general and administrative expenses		0.0		19.9
Income (loss) from operations		0.0		9.3
Other income, net		0.0		0.1
Earnings (loss) before income taxes		0.0		9.4
Income taxes		0.0		(6.2)
Earnings (loss) from discontinued operations, net of tax		0.0		15.6
Gain on disposition of discontinued operations, net of tax		1.1		1,707.7
Net earnings from discontinued operations		1.1		1,723.3
Stock-based compensation expense				4.5
Held-for-sale or Disposed of by Sale | TransCore and Zetec | Selling, General and Administrative Expenses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense				0.9
Held-for-sale or Disposed of by Sale | Industrial Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	0.0	269.0	0.0	770.9
Cost of sales	0.0	126.3	0.0	361.6
Gross profit	0.0	142.7	0.0	409.3
Selling, general and administrative expenses	0.7	78.9	2.3	213.4
Income (loss) from operations	(0.7)	63.8	(2.3)	195.9
Other income, net	0.0	2.5	0.0	3.6
Earnings (loss) before income taxes	(0.7)	66.3	(2.3)	199.5
Income taxes	2.2	17.3	1.8	44.8
Earnings (loss) from discontinued operations, net of tax	(2.9)	49.0	(4.1)	154.7
Gain on disposition of discontinued operations, net of tax	4.5	0.0	8.4	0.0
Net earnings from discontinued operations	$ 1.6	49.0	$ 4.3	154.7
Depreciation and amortization				6.4
Stock-based compensation expense		$ 2.6		$ 8.1