Note 19 - Segment Information (Details) - Countries Representing 10% or More in Net Sales and Long-Lived Assets (USD $) In Millions, unless otherwise specified	9 Months Ended		10 Months Ended		12 Months Ended
	Dec. 31, 2013		Oct. 31, 2013		Dec. 31, 2014		Dec. 31, 2012
Revenue, Major Customer [Line Items]
Net sales revenues	$ 118.2	[1]	$ 627.7	[1]	$ 843.2	[1]	$ 731.2	[1]
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | UNITED STATES
Revenue, Major Customer [Line Items]
Net sales revenues	31.5		176.4		217.4		205.6
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | UNITED KINGDOM
Revenue, Major Customer [Line Items]
Net sales revenues	17.8		93.4		119.1		115.2
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | CHINA
Revenue, Major Customer [Line Items]
Net sales revenues	13.5		64.2		87.8		66.3
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | Other Countries [Member]
Revenue, Major Customer [Line Items]
Net sales revenues	55.4		293.7		418.9		344.1
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | Foreign Sales [Member]
Revenue, Major Customer [Line Items]
Net sales revenues	$ 86.7		$ 451.3		$ 625.8		$ 525.6

[1] Net sales are attributed to countries based on the country which generates the sale.