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Note 23 - Discontinued Operations (Details Textual) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jul. 01, 2019
Apr. 08, 2019
Jun. 30, 2019
Dec. 31, 2019
Sep. 03, 2013
Discontinued Operations [Line Items]          
Disposal group including discontinued operation consideration         $ 325.0
Flexographic Packaging Segment [Member] | Term Credit Agreement [Member]          
Discontinued Operations [Line Items]          
Repayment of loans using proceeds from sale of business   $ 312.0      
Flexographic Packaging Segment [Member] | MIR Bidco, SA [Member] | Stock and Asset Purchase Agreement (SAPA) [Member]          
Discontinued Operations [Line Items]          
Disposal group including discontinued operation consideration   $ 320.0      
Discontinued operation consideration payment for deferred closing $ 5.9        
Disposal group including discontinued operation promissory notes 1.4        
Disposal group including discontinued operation economic benefit from operation in china $ 0.2        
Gain recognized after-tax on divestiture     $ 207.0 $ 212.0