Intangibles and Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Acquired Finite-Lived Intangible Assets [Line Items]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

The components of intangible assets as of March 31, 2018 and December 31, 2017 were as follows:

	March 31, 2018							December 31, 2017
(in thousands)	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Finite-lived intangible assets:
Acquired products rights(1)	$	216,690	$	(37,921	)	$	178,769	$	216,690	$	(32,503	)	$	184,187
Customer relationships(1) (2)	27,925		(4,423		)	23,502		26,080		(3,729		)	22,351
Acquired technology(2) (3)	11,011		(561		)	10,450		9,200		(409		)	8,791
Acquired trademarks(2)	570		(105		)	465		570		(76		)	494
	$	256,196	$	(43,010	)	$	213,186	$	252,540	$	(36,717	)	$	215,823

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(1) The Company acquired certain intangible assets as part of the Noden Transaction. They are amortized on a straight-line basis over a weighted average period of 10.0 years.

(2) The Company acquired certain intangible assets as part of the LENSAR transaction, as described further in Note 19. They are amortized over a weighted average period of 10.0 years. The intangible assets for acquired technology and trademarks are being amortized over their estimated useful lives using the straight-line method of amortization. The intangible assets for customer relationships are being amortized using a double-declining method of amortization as such method better represents the economic benefits to be obtained.

(3) The Company acquired certain intangible assets as part of the foreclosure on certain of Direct Flow Medical assets, as described further in Note 7. They are amortized over a weighted average period of 10.0 years. The intangible assets for acquired technology are being amortized over their estimated useful lives using the straight-line method of amortization.