Note 7 - Pension, Post-Retirement and Post-Employment Plans (Details) - Components of Net Periodic Benefit Cost (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Oct. 31, 2013	Dec. 31, 2012
Successor [Member] | Domestic Pension Plan of Foreign Entity [Member]
Net periodic benefit expense:
Service cost	$ 0.7
Interest cost on the projected benefit obligation	1.2	6.9
Expected return on plan assets		(9.7)
Plan curtailments	(3.0)
Net periodic (benefit) cost		(2.8)
Successor [Member] | Foreign Pension Plan [Member]
Net periodic benefit expense:
Service cost	0.1	0.8
Interest cost on the projected benefit obligation	0.5	3.0
Expected return on plan assets		(3.5)
Plan curtailments	0.2
Net periodic (benefit) cost		0.3
Predecessor [Member] | Domestic Pension Plan of Foreign Entity [Member]
Net periodic benefit expense:
Service cost	0.7		3.6	3.6
Interest cost on the projected benefit obligation	1.2		5.2	6.1
Expected return on plan assets	(1.6)		(6.6)	(7.3)
Amortization of prior service cost			0.1	0.1
Amortization of net loss			1.6	0.6
Plan curtailments	(3.0)
Net periodic (benefit) cost	(2.7)		3.9	3.1
Predecessor [Member] | Foreign Pension Plan [Member]
Net periodic benefit expense:
Service cost	0.1		0.6	0.7
Interest cost on the projected benefit obligation	0.5		2.5	3.1
Expected return on plan assets	(0.7)		(4.1)	(4.5)
Amortization of net loss			0.4	0.5
Plan curtailments				0.1
Net periodic (benefit) cost	$ (0.1)		$ (0.6)	$ (0.1)