Note 19 - Segment Information (Details) - External Party Sales by Product (USD $) In Millions, unless otherwise specified	9 Months Ended		10 Months Ended		12 Months Ended				3 Months Ended
	Dec. 31, 2013		Oct. 31, 2013		Dec. 31, 2014		Dec. 31, 2012		Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	$ 118.2	[1]	$ 627.7	[1]	$ 843.2	[1]	$ 731.2	[1]
Industrial Group [Member] | Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	67.7				429.4
Industrial Group [Member] | Predecessor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales			353.4				411.1
Electronic Group [Member] | Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	24.9				159.9
Electronic Group [Member] | Predecessor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales			128.4				148.4
Performance Materials [Member] | Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	92.6				589.3
Performance Materials [Member] | Predecessor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales			481.8				559.5
Performance Materials [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	92.6		481.8		589.3		559.5
Graphic Solutions [Member] | Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	25.6				165.9
Graphic Solutions [Member] | Predecessor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales			145.9				171.7
Graphic Solutions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	25.6		145.9		165.9		171.7
Agro Solutions [Member] | Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales					88.0
Successor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales	118.2				843.2				273.6	196.8	189.1	183.7	118.2
Predecessor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
External party sales			$ 627.7				$ 731.2						$ 67.2	[2]	$ 188.4	$ 190.0	$ 182.1	$ 182.4	$ 180.4	$ 186.2	$ 182.2

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

[2] MacDermid's fourth quarter includes results from October 1, 2013 through October 31, 2013.