Acquisitions Pursuit Vascular Intangible (Details) - Pursuit Vascular, Inc. [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 82,300
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 69,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 10,800
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 2,500
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years