Selected Quarterly Financial and Supplementary Data (Details Textual) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Dosage Form Facility Held for Sale [Member]
Income Tax Expense (Benefit)	$ (1,464)
Restructuring Charges	$ 15,573					$ 15,573
Income Tax Expense (Benefit)						$ 32,389	$ (12,627)	$ 14,732
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ 11,719	$ 824	$ 14,161	$ 198
Business Combination, Step Acquisition Net Gain (Loss) on Acquiring Remaining Interest				$ 4,122
Gain (Loss) on Disposition of Property Plant Equipment		1,234					1,234	$ 4,680
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount		387
Income Tax Reconciliation, Tax Audit Settlements		(3,948)					(3,948)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements		$ (7,170)					$ (7,170)