Acquisitions - Narrative (Details) (USD $)	3 Months Ended		5 Months Ended	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Aug. 08, 2014
Business Acquisition [Line Items]
Payments to acquire intangible assets	$ 495,000	$ 433,000	$ 3,000,000
Liabilities incurred in agreement			1,000,000
Contingent consideration, liability				3,000,000
Payments to acquire businesses, net of cash acquired	1,250,000	0
License agreements and trademarks
Business Acquisition [Line Items]
Intangible assets purchased	6,888,000		7,172,000
Useful life				12 years
Distribution agreements
Business Acquisition [Line Items]
Intangible assets purchased	3,205,000		3,091,000
Useful life				3 years
Intangible assets				200,000
Developed technology
Business Acquisition [Line Items]
Intangible assets purchased	76,237,000		79,172,000
Intangible assets				3,800,000
Catheter Connections, Inc. [Member] | Distribution agreements
Business Acquisition [Line Items]
Payments to acquire intangible assets	250,000
Intangible assets purchased	$ 250,000
Useful life	10 years