Selected Quarterly Financial and Supplementary Data (Details Textual) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Charges						$ 1,158	$ 15,573
Income Tax Expense (Benefit)						$ 40,214	$ 32,389	$ (12,627)
Dosage Form Facility Held for Sale [Member]
Restructuring Charges	$ 761		$ 154	$ 290	$ 15,573
Restructuring Benefits		$ 47
Income Tax Expense (Benefit)					$ (1,464)