v3.25.1

Investments - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Apr. 01, 2025	Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]
Technology investments	$ 163.0			$ 155.9
Long-term Investments
Debt and Equity Securities, FV-NI [Line Items]
Technology investments	152.0			149.9
Short-Term Investments
Debt and Equity Securities, FV-NI [Line Items]
Technology investments	$ 11.0			$ 6.0
VOXX \| Subsequent Event
Debt and Equity Securities, FV-NI [Line Items]
Merger purchase price per share (in dollars per share)			$ 7.5
VOXX
Debt and Equity Securities, FV-NI [Line Items]
Shares of investment held (in shares)	6,463,808
Gain (loss) relating to mark to market adjustment in investment income	$ 0.8	$ (7.3)

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Number of shares of investment owned.

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GENTEX CORP 10-Q