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Pension, Post-Retirement and Post-Employment Plans (Details) - USD ($) $ in Millions				8 Months Ended	10 Months Ended	12 Months Ended
		Dec. 01, 2015	Oct. 13, 2014	Dec. 31, 2013	Oct. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Apr. 22, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets					$ 0.0	$ 158.6	$ 142.2
Expected future benefit obligation						16.9
Aggregate accumulated benefit obligation						327.0	232.0
Company's expected future contribution to the plan						0.6
Accumulated benefit obligations in excess of plan assets						327.0	148.2
Defined Benefit Plan, Fair Value of Plan Assets After NAV						$ 278.2	228.5
Accumulated benefit obligations in excess of plan assets, fair value							135.1
Retiring After April First Nineteen Eighty Nine [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Post-retirement medical benefits limits						3.00%
SERP [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic (benefit) cost						$ (1.0)	(2.1)
Retiring Prior To March Thirty First Nineteen Eighty Nine [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Post-retirement medical benefits limits						5.00%
UK Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						$ 85.8	$ 83.2
Benefit plan obligation transferred (in Pounds)			$ 49.7
Net actuarial gain (loss)						$ 18.8
Minimum [Member] | Medical And Dental Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Years of service						10 years
Maximum [Member] | Medical And Dental Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Years of service						20 years
Successor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets						$ 0.0
Successor [Member] | SERP [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic (benefit) cost				$ (2.7)
Successor [Member] | MacDermid [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Curtailment gain				3.0
Predecessor [Member] | SERP [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic (benefit) cost					(3.5)
Long-term Growth [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan investment mix						75.00%
Near-term Benefit Payments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan investment mix						25.00%
Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						25.00%
Limited Partnership Interests and Managed Equity Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						60.00%	58.00%
Bond Mutual Fund Holdings [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						10.00%	9.00%
Cash [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						5.00%	8.00%
Cash [Member] | Alent Retirement Security Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						3.00%
Cash [Member] | UK Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						0.60%	1.00%
US Treasury Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets						$ 5.0
US Treasury Securities [Member] | Alent Retirement Security Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						8.00%
Collective Investment Funds (CIFs) [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets						$ 2.9
Collective Investment Funds (CIFs) [Member] | Alent Retirement Security Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						63.00%
Mutual Funds [Member] | Alent Retirement Security Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						26.00%
Equity Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan							25.00%
Insurance Buy In Policy [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	[1]					$ 77.2	$ 83.2
Insurance Buy In Policy [Member] | UK Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						90.50%	89.00%
Bond Funds [Member] | UK Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted average asset allocation of the Pension Plan						8.90%	10.00%
Foreign Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected future benefit obligation						$ 5.2
Foreign Pension Plan [Member] | Successor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation				73.1		112.7	$ 88.3	$ 0.0
Fair value of plan assets				88.1		93.7	94.5	0.0
Service cost				0.1		1.4	0.8
Interest cost				0.5		2.8	3.0
Defined Benefit Plan, Actuarial Gain (Loss)				0.9		(0.3)	(20.2)
Defined Benefit Plan, Benefits Paid				0.7		6.6	3.5
Foreign Pension Plan [Member] | Successor [Member] | Pension And SERP Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial gain (loss)				2.1		10.5	10.1
Service cost				0.1		1.4	0.8
Interest cost				0.5		2.8	3.0
Expected return on plan assets				(0.7)		(2.7)	(3.5)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)				0.0		0.0	0.0
Defined Benefit Plan, Amortization of Gains (Losses)				0.0		0.0	0.0
Net periodic (benefit) cost				(0.1)		1.5	0.3
Foreign Pension Plan [Member] | Predecessor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation					72.9				$ 75.0
Fair value of plan assets					86.8				79.6
Service cost					0.6
Interest cost					2.5
Defined Benefit Plan, Actuarial Gain (Loss)					(1.6)
Defined Benefit Plan, Benefits Paid					2.2
Foreign Pension Plan [Member] | Predecessor [Member] | Pension And SERP Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial gain (loss)					(10.8)
Service cost					0.6
Interest cost					2.5
Expected return on plan assets					(4.1)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)					0.0
Defined Benefit Plan, Amortization of Gains (Losses)					0.4
Net periodic (benefit) cost					(0.6)
Domestic Postretirement Benefit Plan of Foreign Entity [Member] | Successor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation				6.8		9.4	7.4	0.0
Fair value of plan assets				0.0			0.0	0.0
Net actuarial gain (loss)				0.1		0.4	0.6
Service cost				0.0		0.0	0.1
Interest cost				0.1		0.3	0.3
Defined Benefit Plan, Actuarial Gain (Loss)				(0.1)		0.5	(0.5)
Defined Benefit Plan, Benefits Paid				0.1		0.6	0.3
Domestic Postretirement Benefit Plan of Foreign Entity [Member] | Predecessor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation					6.6				6.9
Fair value of plan assets					0.0				0.0
Net actuarial gain (loss)					(0.1)
Service cost					0.0
Interest cost					0.2
Defined Benefit Plan, Actuarial Gain (Loss)					0.1
Defined Benefit Plan, Benefits Paid					0.5
Domestic Pension Plan of Foreign Entity [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected future benefit obligation						11.0
Domestic Pension Plan of Foreign Entity [Member] | Successor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation				137.4		230.5	157.6	0.0
Fair value of plan assets				127.0		184.5	134.0	0.0
Service cost				0.7		0.0	0.0
Interest cost				1.2		6.8	6.9
Defined Benefit Plan, Actuarial Gain (Loss)				2.8		11.4	(18.1)
Defined Benefit Plan, Benefits Paid				0.7		5.0	4.2
Domestic Pension Plan of Foreign Entity [Member] | Successor [Member] | Pension And SERP Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial gain (loss)				(5.7)		15.8	10.4
Service cost				0.7		0.0	0.0
Interest cost				1.2		6.8	6.9
Expected return on plan assets				(1.6)		(9.9)	(9.7)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)				0.0		0.0	0.0
Defined Benefit Plan, Amortization of Gains (Losses)				0.0		0.0	0.0
Net periodic (benefit) cost				(2.7)		(3.1)	(2.8)
Domestic Pension Plan of Foreign Entity [Member] | Predecessor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation					142.0				144.3
Fair value of plan assets					123.3				102.6
Service cost					3.6
Interest cost					5.2
Defined Benefit Plan, Actuarial Gain (Loss)					7.1
Defined Benefit Plan, Benefits Paid					3.3
Domestic Pension Plan of Foreign Entity [Member] | Predecessor [Member] | Pension And SERP Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial gain (loss)					(10.5)
Service cost					3.6
Interest cost					5.2
Expected return on plan assets					(6.6)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)					0.1
Defined Benefit Plan, Amortization of Gains (Losses)					1.6
Net periodic (benefit) cost					3.9
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						217.0	151.0
Expected future benefit obligation						6.3
Pension Plan [Member] | MacDermid Employees' Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						142.0	150.0
Pension plan reduction						8.2
Pension Plan [Member] | Alent [Member] | Alent Retirement Security Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						74.8
Fair value of plan assets		$ 62.6				61.3
Pension plan reduction		1.3
Defined Benefit Plan, Actuarial Gain (Loss)						(0.9)
Defined Benefit Plan, Benefits Paid		$ 0.4
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						13.5	7.1
Foreign Postretirement Benefit Plan [Member] | Other Current Liabilities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation						6.1	4.1
Foreign Postretirement Benefit Plan [Member] | Successor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation				0.3		1.4	0.3	0.0
Fair value of plan assets				0.0			0.0	$ 0.0
Net actuarial gain (loss)				0.0		(0.2)	0.0
Service cost				0.0		0.1	0.0
Interest cost				0.0		0.2	0.0
Defined Benefit Plan, Actuarial Gain (Loss)				0.0		0.2	0.0
Defined Benefit Plan, Benefits Paid				$ 0.0		0.1	$ 0.0
Foreign Postretirement Benefit Plan [Member] | Predecessor [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation					0.3				0.4
Fair value of plan assets									$ 0.0
Net actuarial gain (loss)					0.1
Service cost					0.0
Interest cost					0.0
Defined Benefit Plan, Actuarial Gain (Loss)					0.1
Defined Benefit Plan, Benefits Paid					$ 0.0
Other Postretirement Benefit Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected future benefit obligation						$ 0.7
Benefit obligation percent to retirees						32.00%
Benefit obligation percent to eligible active participants						42.00%
Benefit obligation percent to other active participants						26.00%
Other Postretirement Benefit Plan [Member] | Minimum [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Post-retirement medical benefits limits						2.00%
Other Postretirement Benefit Plan [Member] | Maximum [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Post-retirement medical benefits limits						4.00%
[1] This category represents assets in the U.K Pension Plan invested in insurance contract with PIC in connection with the “Buy-In” of the U.K Pension Plan.

X

- Definition

Represents limit on annual increase in the Company’s costs for post-retirement medical benefits.

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No definition available.

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Represents the service period earned for full time employees.

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Represents projected benefit obligation allocated to fully eligible active participants.

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No definition available.

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Represents projected benefit obligation allocated to other active participants.

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Represents projected benefit obligation allocated to retirees.

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Represents the transfer of the benefit obligation of a defined benefit plan.

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Defined Benefit Plan, Fair Value of Plan Assets After NAV

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For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503844

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
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- Definition

The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 10A
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- Definition

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount of gains or losses recognized in net periodic benefit cost.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Net increase or decrease in the plan benefit obligation during the reporting period.

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- Definition

The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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