Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended									12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2008 Lorazepam and Clorazepate [Member]	Dec. 31, 2012 Lorazepam and Clorazepate [Member]	Dec. 31, 2003 Lorazepam and Clorazepate [Member] Indemnification Agreement [Member]	Dec. 31, 2003 Lorazepam and Clorazepate [Member] Surety Bond [Member]	Dec. 31, 2012 CasChem [Member]	Dec. 31, 2012 Cosan Clifton, New Jersey Site [Member]	Dec. 31, 2012 Cosan Carlstadt New Jersey Site [Member]	Dec. 31, 2012 Berry's Creek Site [Member]	Dec. 31, 2012 Harriman Site [Member]	Dec. 31, 2012 Maybrook and Harriman Sites [Member]
Components of Environmental Loss Accrual [Abstract]
Accrual for estimated cost associated with study and remediation of applicable sites	$ 5,096	$ 7,786					$ 184	$ 767	$ 836	$ 211	$ 300
Payments to reserves for estimated environmental and remediation cost	4,209
Adjustment to environmental and remediation reserves	1,422											962
Impact of currency translation environmental study and remediation of applicable site reserves	97
Number of former subsidiaries for which notice received	2
Approximate number of other sites named PRP of SCP Superfund Site	130
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