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Leases (Summary of Supplemental Cash Flow Information Related to Leases) (Parenthetical) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Increase of ROU asset upon modification |  |  | $ 1.1 | $ 8.6
ROU assets |  | $ 1.2 | 4.7 | 0.6
Operating leases | [1] | 18.5 | 19.0 | 15.8
Finance leases | [2] | 7.7 | 13.6 | 12.3
Finance lease ROU asset modifications |  | 0.0 |  |
Decrease of ROU asset upon modification |  |  |  | 1.0
Parallel and Geometrik [Member] |  |  |  |
Operating leases |  | $ 4.9 |  |
3form and Zahner [Member] |  |  |  |
Operating leases |  |  | 13.0 |
Zahner [Member] |  |  |  |
Finance leases |  |  | $ 8.9 |
Right-of-use Asset [Member] |  |  |  |
ROU assets |  |  |  | $ 3.7
Modified expected lease term |  |  |  | 13 years
[1] | During 2025, increases in ROU assets included $4.9 million recognized from the acquisitions of Parallel and Geometrik and a $1.2 million increase from modifications that did not involve obtaining a new ROU asset. During 2024, increases in ROU assets included $13.0 million from the acquisitions of 3form and Zahner and a $4.7 million increase from modifications that did not involve obtaining a new ROU asset. During 2023, increases in ROU assets included a decrease of $1.0 million due to a change in lease classification upon modification and an increase of $0.6 million resulting from modifications that did not involve obtaining a new ROU asset
[2] | During 2025, there were no modifications or acquired finance leases that involved obtaining a new ROU asset. During 2024, increases in ROU assets included $8.9 million from the acquisition of Zahner and a $1.1 million decrease from modifications that did not involve obtaining a new ROU asset. During 2023, increases in ROU assets included $8.6 million due to a change in lease classification upon modification for an existing manufacturing facility within our Architectural Specialties segment that had a modified expected lease term of 13 years, in addition to an increase of $3.7 million for a lease modification that did not involve obtaining a new ROU asset.

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