GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by segment were as follows:

(dollars in millions)	Electronics		Industrial & Specialty			Total
Balance at December 31, 2021	$	1,292.2	$	1,234.1	(1)	$	2,526.3
Acquisition (2)	—		7.1			7.1
Transfer of Films business (3)	80.4		(80.4)			—
Foreign currency translation and other	(68.6)		(52.0)			(120.6)
Balance at December 31, 2022	1,304.0		1,108.8			2,412.8
Transfer of Films business (4)	7.9		(7.9)			—
Goodwill impairment	—		(80.0)			(80.0)
Foreign currency translation and other	(13.2)		17.1			3.9
Balance at December 31, 2023	$	1,298.7	$	1,038.0		$	2,336.7

(1) Includes accumulated impairment losses of $46.6 million.

(2) The Company completed the HSO Acquisition on January 26, 2022.

(3) In the second quarter of 2022, the Company transferred operational responsibility of its Films business from its Industrial Solutions business within its Industrial & Specialty segment to its Electronics segment. Goodwill was reallocated using a relative fair value approach and assessed for impairment both before and after the allocation. See Note 1, Background and Basis of Presentation, to the Consolidated Financial Statements for further information.

(4) In the first quarter of 2023, the Company transferred operational responsibility of its Films business from its Graphics Solutions business within its Industrial & Specialty segment to its Electronics segment. Goodwill was reallocated using a relative fair value approach and assessed for impairment both before and after the allocation. See Note 1, Background and Basis of Presentation, to the Consolidated Financial Statements for further information.

Schedule of Finite-lived Intangible Assets Subject to Amortization

The major components of intangible assets were as follows:

	December 31, 2023						December 31, 2022
(dollars in millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Customer relationships	$	978.4	$	(505.9)	$	472.5	$	967.5	$	(434.1)	$	533.4
Developed technology	410.0		(316.2)		93.8		408.9		(277.0)		131.9
Trade names	95.9		(30.9)		65.0		96.0		(23.8)		72.2
Reacquired distribution rights	187.0		(7.3)		179.7		—		—		—
Other	0.8		(0.5)		0.3		—		—		—
Indefinite-lived trade name	68.0		—		68.0		68.0		—		68.0
Total	$	1,740.1	$	(860.8)	$	879.3	$	1,540.4	$	(734.9)	$	805.5

Schedule of Estimated Future Amortization of Intangible Assets

Estimated future amortization of intangible assets for each of the next five years is as follows:

(dollars in millions)	Amortization Expense
2024	$	121.3
2025	115.0
2026	72.8
2027	71.0
2028	70.8