Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		3 Months Ended	12 Months Ended						3 Months Ended			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Lorazepam and Clorazepate [Member] Plaintiff	Dec. 31, 2008 Lorazepam and Clorazepate [Member]	Dec. 31, 2003 Lorazepam and Clorazepate [Member] Indemnification Agreement [Member]	Dec. 31, 2003 Lorazepam and Clorazepate [Member] Surety Bond [Member]	Mar. 31, 2014 CasChem [Member]	Mar. 31, 2014 Cosan Carlstadt, New Jersey Site [Member]	Mar. 31, 2014 Cosan Clifton, New Jersey Site [Member]	Mar. 31, 2014 Berry's Creek Site [Member] Subsidiary	Mar. 31, 2014 Maybrook Site [Member]	Mar. 31, 2014 Harriman Site [Member]	Mar. 31, 2014 Harriman Site [Member] Minimum [Member]	Mar. 31, 2014 Harriman Site [Member] Maximum [Member]	Mar. 31, 2014 Scientific Chemical Processing (SCP) Superfund Site [Member] Party
Components of Environmental Loss Accrual [Abstract]
Reserve for estimated environmental and remediation costs	$ 10,205	$ 10,881					$ 243	$ 1,106	$ 1,226	$ 200	$ 322	$ 3,690			$ 1,039
Adjustment to environmental and remediation reserves	283
Impact of currency translation on environmental and remediation reserves	17
Payments against reserves for estimated environmental and remediation cost	942
Number of former subsidiaries for which notice received										2
Estimated remediation expense													2,000	7,000
Approximate number of other sites named PRP of SCP Superfund Site															130
Amount expected to be covered by insurance policy															737
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
Payment in exchange for release and full indemnity against future cost or liabilities					12,415
Surety bond amount						$ 66,632