Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2008 Plaintiff	Dec. 31, 2003	Dec. 31, 2014
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	$ 9,535			$ 9,595
Adjustment to environmental and remediation reserves	555
Impact of currency translation on environmental and remediation reserves	98
Payments against reserves for estimated environmental and remediation costs	517
Lorazepam and Clorazepate [Member]
Loss Contingencies [Line Items]
Number of plaintiffs in unresolved case		4
Judgment amount against Mylan, Gyma and Cambrex, payable jointly and severally		19,200
Punitive damages award		16,709
Loss contingency, prejudgment interest		7,500
Pending increase/(decrease) in damages award	(9,600)
Lorazepam and Clorazepate [Member] | Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Payment in exchange for release and full indemnity against future cost or liabilities			12,415
CasChem [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	461
Cosan Carlstadt, New Jersey Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	1,051
Cosan Clifton, New Jersey Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	1,173
Berry's Creek Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	244
Number of subsidiaries for which notice received	2
Maybrook Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	322
Harriman Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	3,615
Harriman Site [Member] | Minimum [Member]
Components of Environmental Loss Accrual [Abstract]
Estimated remediation expense	2,000
Harriman Site [Member] | Maximum [Member]
Components of Environmental Loss Accrual [Abstract]
Estimated remediation expense	7,000
Scientific Chemical Processing (SCP) Superfund Site [Member]
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	987
Approximate number of other sites named PRPs of SCP Superfund Site	130
Amount expected to be covered by insurance	$ 737
Newark Bay Complex Litigation [Member]
Components of Environmental Loss Accrual [Abstract]
Number of subsidiaries for which notice received	2