Supplemental Information (Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Summary of expenses in statements of operations
Research and development	$ 103.4	$ 93.6	$ 94.0
Advertising, promotions and marketing	34.4	49.7	39.5
Cooperative advertising expenditures	$ 21.8	$ 22.5	$ 28.7

Amount of expense under a cooperative advertising arrangement.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

+ References

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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