Business Combinations (Tables)

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]

The following table presents a summary of the total fair value of consideration transferred for the Noden Products acquisition (in thousands):

Consideration paid in cash at closing	$	109,938
Discounted anniversary payment	87,007
Fair value of contingent consideration	47,360
Total fair value of consideration transferred	$	244,305

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

The following table summarizes the fair values of the identifiable intangible assets acquired and liabilities assumed at the acquisition date (in thousands):

Acquired product rights	$	216,690
Customer relationships	23,880
Goodwill	3,735
Net intangible assets	$	244,305

Business Acquisition, Pro Forma Information [Table Text Block]

	Year Ended
	December 31,
(in thousands)	2016		2015
Pro forma revenues	$	317,095	$	744,029
Pro forma net income	$	62,817	$	363,148
Pro forma net income per share - basic	$	0.38	$	2.22
Pro forma net income per share - diluted	$	0.38	$	2.22