Note 8 - Stock Compensation (Details Textual) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Share-Based Payment Arrangement, Expense	$ 11.0	$ 13.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 71.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	3 years 2 months 12 days
Performance Share Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	3.56%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate	44.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	2 years 10 months 24 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid	$ 1.8
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)	0.8
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 9.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 4 months 24 days
Dana Transformation Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Average Stock Price Hurdle, Consecutive Trading Days (Day)	20 days
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 41.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	4 years 3 months 18 days
Dana Transformation Awards [Member] \| January 2026 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	3.64%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate	48.29%
Dana Transformation Awards [Member] \| February 2026 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	3.66%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate	47.11%
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid	$ 0.9
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)	0.7
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 21.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 10 months 24 days

The number of consecutive trading days for average stock price hurdle under share based payment arrangement.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Amount of cash paid to settle liability for award under share-based payment arrangement.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Number of shares issued under share-based payment arrangement.

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