Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the Company's goodwill by segment during the periods ended December 31, 2023 and 2022 are summarized below:

(in millions)	Propulsion		Engine P&A		Navico Group		Boat		Total
December 31, 2021	$	14.7	$	233.1	$	581.8	$	58.8	$	888.4
Acquisitions	—		—		—		66.6		66.6
Adjustments	(0.7)		(0.3)		14.0		(0.4)		12.6
December 31, 2022	$	14.0	$	232.8	$	595.8	$	125.0	$	967.6
Acquisitions	38.5		—		—		14.0		52.5
Adjustments	1.6		0.2		3.9		4.9		10.6
December 31, 2023	$	54.1	$	233.0	$	599.7	$	143.9	$	1,030.7

Schedule of Other Intangible Assets

The Company's intangible assets, included within Other intangibles, net on the Consolidated Balance Sheets as of December 31, 2023 and 2022, are summarized by intangible asset type below:

	2023				2022
(in millions)	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Intangible assets:
Customer relationships (A)	$	907.3	$	(428.6)	$	897.4	$	(386.1)
Trade names	311.5		—		305.4		—
Developed technology (A)	167.5		(24.3)		160.0		(13.3)
Other (A)	91.2		(46.6)		67.6		(33.6)
Total	$	1,477.5	$	(499.5)	$	1,430.4	$	(433.0)

(A) The weighted average remaining amortization period for Customer relationships, Developed technology and Other intangibles assets was 11.2 years, 12.7 years, and 4.0 years, respectively, as of December 31, 2023.

Other intangible assets primarily consist of software, patents and franchise agreements. Gross and related accumulated amortization amounts include adjustments related to the impact of foreign currency translation. See Note 4 – Acquisitions for further details on intangibles acquired during 2023 and 2022. Aggregate amortization expense for intangibles was $68.6 million, $63.3 million and $36.0 million for the years ended December 31, 2023, 2022 and 2021, respectively. Estimated amortization expense for intangible assets is $69.3 million for each of the years ending December 31, 2024, 2025, 2026, and 2027, and $69.1 million for the year ending December 31, 2028.