Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Weighted Average Diluted Shares Outstanding

The effects of potential common stock were determined using the treasury stock method:

	Year ended December 31,
	2022	2021	2020
Basic weighted-average shares outstanding	105.9	105.3	104.6
Effect of potential common stock:
Common stock awards	0.9	1.2	1.1
Diluted weighted-average shares outstanding	106.8	106.5	105.7

Schedule of Property, Plant and Equipment

Depreciation and amortization are provided for using principally the straight-line method over the estimated useful lives of the assets as follows:

Buildings	20-30 years
Machinery	8-12 years
Other equipment and software	3-5 years

The components of property, plant and equipment at December 31 were as follows:

	2022		2021
Land	$	1.0	$	1.0
Buildings	43.0		45.6
Machinery and other equipment	113.2		104.2
Computer equipment	107.5		109.7
Software	71.9		68.0
	336.6		328.5
Accumulated depreciation	(251.3)		(245.8)
	$	85.3	$	82.7

Schedule of Disaggregated Revenue

See details in the table below.

	Year Ended December 31, 2022
	Application Software		Network Software		Technology Enabled Products		Total
Revenue Stream
Software related
Recurring	$	1,946.0	$	981.4	$	12.0	$	2,939.4
Reoccurring	124.2		246.2		—		370.4
Non-recurring	569.3		150.9		1.2		721.4
Total Software Revenues	2,639.5		1,378.5		13.2		4,031.2
Product Revenue	—		—		1,340.6		1,340.6
	$	2,639.5	$	1,378.5	$	1,353.8	$	5,371.8

	Year Ended December 31, 2021
	Application Software		Network Software		Technology Enabled Products		Total
Revenue Stream
Software related
Recurring	$	1,708.0	$	837.5	$	7.8	$	2,553.3
Reoccurring	111.4		249.5		—		360.9
Non-recurring	547.3		136.8		0.8		684.9
Total Software Revenues	2,366.7		1,223.8		8.6		3,599.1
Product Revenue	—		—		1,234.7		1,234.7
	$	2,366.7	$	1,223.8	$	1,243.3	$	4,833.8

	Year Ended December 31, 2020
	Application Software		Network Software		Technology Enabled Products		Total
Revenue Stream
Software related
Recurring	$	1,251.5	$	707.4	$	5.8	$	1,964.7
Reoccurring	64.8		235.5		—		300.3
Non-recurring	469.5		126.5		0.6		596.6
Total Software Revenues	1,785.8		1,069.4		6.4		2,861.6
Product Revenue	—		—		1,160.8		1,160.8
	$	1,785.8	$	1,069.4	$	1,167.2	$	4,022.4