BUSINESS ACQUISITIONS - Narrative (Details) - USD ($) $ in Thousands				3 Months Ended		6 Months Ended
	Dec. 05, 2014	Oct. 27, 2014	Jan. 15, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Impairment of intangible assets						$ 409	$ 600
Metasurg
Business Acquisition [Line Items]
Consideration for acquisition	$ 27,600
Adjustment of consideration for acquisition	400					400
Payments for acquisition	26,500
Contingent consideration acquisition	700
Business acquisition, additional cash consideration payable upon completion of milestones	$ 38,500
Fair value inputs, discount rate	19.90%
Revenue of acquired company since acquisition				$ 1,700		3,300
Net assets acquired				27,558		27,558
Medtronic MicroFrance
Business Acquisition [Line Items]
Adjustment of consideration for acquisition		$ (1,500)				1,500
Payments for acquisition		60,100
Revenue of acquired company since acquisition				6,300		12,100
Adjustment to goodwill		$ 800
Net assets acquired				60,067		60,067
Confluent Surgical, Inc.
Business Acquisition [Line Items]
Contingent consideration acquisition			$ 20,900
Business acquisition, additional cash consideration payable upon completion of milestones			$ 30,000
Fair value inputs, discount rate			2.20%
Revenue of acquired company since acquisition				18,900	$ 14,100	36,600	$ 32,400
Net assets acquired			$ 255,895	$ 255,895		255,895
Payments to acquire business interest			231,000
Payments for transitional supply agreements from acquisition			$ 4,000
Contingent liability extension period			2 years
Consideration liability, number of required days for extension			180 days
Contingent liability, period of consideration arrangement			5 years
Contingent liability, period of transitional supply price increases			3 years
Impairment of intangible assets						$ 600
Fair value input, probability of event			95.00%
Incremental increase in contingent liability			$ 300
Incremental decrease in contingent liability			400
Confluent Surgical, Inc. | Potential Cash Consideration Fair Value
Business Acquisition [Line Items]
Business acquisition, additional cash consideration payable upon completion of milestones			25,000
Confluent Surgical, Inc. | Cash Consideration Two
Business Acquisition [Line Items]
Business acquisition, additional cash consideration payable upon completion of milestones			$ 5,000
Deferred Tax Liability | Confluent Surgical, Inc.
Business Acquisition [Line Items]
Working capital and purchase price adjustment					$ 12,400