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Note 3 - Revenue - Contract Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Sales Incentives [Member] |  |
Beginning balance | $ 13.7 | $ 16.7
Additions to sales incentive accrual | 18.2 | 24.7
Contract payments | (20.0) | (27.7)
Foreign currency fluctuations | 0.2 | 0.0
Ending balance | 12.1 | 13.7
Maintenance [Member] |  |
Foreign currency fluctuations | (0.6) | 0.0
Beginning balance | 10.7 | 8.5
Increase in deferred revenue representing our obligation to satisfy future performance obligations | 21.0 | 26.0
Deferred revenue acquired from acquisition of Gaomei Cleaning Equipment Company | 0.0 | 1.4
Decrease in deferred revenue for amounts recognized in net sales for satisfied performance obligations | (21.8) | (25.2)
Ending balance | $ 9.3 | $ 10.7

X
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X
- Definition The amount of increase (decrease) in contract with customer liability from the impact of foreign currency. + References No definition available. + Details
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X
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