Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the three months ended March 31, 2023, by reportable business segment, were as follows:

	FMT		HST		FSDP		IDEX
Goodwill	$	800.9	$	1,644.8	$	393.0	$	2,838.7
Accumulated goodwill impairment losses	(20.7)		(149.8)		(30.1)		(200.6)
Balance at January 1, 2023	780.2		1,495.0		362.9		2,638.1
Foreign currency translation	2.8		14.0		3.0		19.8
Acquisition adjustments	(1.8)		1.8		—		—
Balance at March 31, 2023	$	781.2	$	1,510.8	$	365.9	$	2,657.9

Schedule of Gross Carrying Value and Accumulated Amortization For Each Major Class of Intangible Asset

The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at March 31, 2023 and December 31, 2022:

	At March 31, 2023							At December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Patents	$	2.9	$	(1.9)	$	1.0	12	$	2.9	$	(1.8)	$	1.1
Trade names	188.4		(75.5)		112.9		15	186.5		(71.4)		115.1
Customer relationships	774.7		(196.6)		578.1		13	772.2		(184.9)		587.3
Unpatented technology	206.1		(59.3)		146.8		12	207.1		(57.8)		149.3
Software	4.9		(1.1)		3.8		5	4.8		(0.7)		4.1
Total amortized intangible assets	1,177.0		(334.4)		842.6			1,173.5		(316.6)		856.9
Indefinite-lived intangible assets:
Banjo trade name	62.1		—		62.1			62.1		—		62.1
Akron Brass trade name	28.8		—		28.8			28.8		—		28.8
Total intangible assets	$	1,267.9	$	(334.4)	$	933.5		$	1,264.4	$	(316.6)	$	947.8

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on the intangible asset balances as of March 31, 2023, expected amortization expense for the remaining nine months of 2023 and for the years 2024 through 2027 is as follows:

Maturity of Intangible Assets	Estimated Amortization
2023 (excluding the three months ended March 31, 2023)	$	68.8
2024	87.6
2025	86.2
2026	84.5
2027	80.5