Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets

	December 31, 2022							December 31, 2021
	Weighted Average Remaining Useful Life (Years)	Gross Value		Accumulated Amortization		Net Value		Gross Value		Accumulated Amortization		Net Value
Customer relationships	8.6	$	93.8	$	55.2	$	38.6	$	90.4	$	50.0	$	40.4
Indefinite-lived tradenames	*	25.7		*		25.7		24.7		*		24.7
Technology	12.5	22.4		8.8		13.6		23.1		7.6		15.5
Other	4.9	4.8		4.0		0.8		4.9		3.8		1.1
Total		$	146.7	$	68.0	$	78.7	$	143.1	$	61.4	$	81.7
* Not applicable, as these tradenames have an indefinite life.

Schedule of indefinite-lived intangible assets

	December 31, 2022							December 31, 2021
	Weighted Average Remaining Useful Life (Years)	Gross Value		Accumulated Amortization		Net Value		Gross Value		Accumulated Amortization		Net Value
Customer relationships	8.6	$	93.8	$	55.2	$	38.6	$	90.4	$	50.0	$	40.4
Indefinite-lived tradenames	*	25.7		*		25.7		24.7		*		24.7
Technology	12.5	22.4		8.8		13.6		23.1		7.6		15.5
Other	4.9	4.8		4.0		0.8		4.9		3.8		1.1
Total		$	146.7	$	68.0	$	78.7	$	143.1	$	61.4	$	81.7
* Not applicable, as these tradenames have an indefinite life.

Schedule of amortization of intangible assets

Amortization expense of other intangible assets as follows:

	Year Ended December 31,
	2022		2021		2020
Amortization expense	$	6.6	$	6.9	$	6.2

Amortization for the next five years

We estimate amortization expense for the five years subsequent to 2022 as follows:

2023	$	6.7
2024	$	6.5
2025	$	6.5
2026	$	6.1
2027	$	6.1