Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 115,210	$ 95,907	$ 329,033	$ 292,057
Operating Income (Loss)	8,391	9,082	16,928	25,311
Cardiovascular Segment [Member]
Segment Reporting Information [Line Items]
Net sales	110,859	92,106	316,566	280,336
Operating Income (Loss)	7,753	9,169	16,031	26,005
Endoscopy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	4,351	3,801	12,467	11,721
Operating Income (Loss)	$ 638	$ (87)	$ 897	$ (694)