DERIVATIVE INSTRUMENTS (Narrative) (Details) SFr in Millions		12 Months Ended
	Nov. 28, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Oct. 02, 2017 USD ($)	Oct. 02, 2017 CHF (SFr)
Derivative [Line Items]
Loss reclassified into income			$ 0
Gain reclassified into income			0
Amount estimated to be reclassified to earnings during next twelve months		$ 300,000
Reclassification from AOCI, foreign currency rate translation, intercompany loan		2,958,000	0	$ (923,000)
Loss recorded to AOCI		3,425,000	$ (1,871,000)
Interest Rate Swap
Derivative [Line Items]
Loss reclassified into income		100,000
Foreign Currency Forward Contract | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	$ 8,900,000.0
Gain from change in fair value of the contract	$ 100,000
Derivative fair value		100,000
Cross Currency Interest Rate Swap | Codman
Derivative [Line Items]
Amount estimated to be reclassified to earnings during next twelve months		7,800,000
Reclassification from AOCI, foreign currency rate translation, intercompany loan		1,100,000
Gain reclassified into income		1,900,000
Cross Currency Interest Rate Swap | Codman | Short
Derivative [Line Items]
Notional amount					$ 300,000,000.0
Cross Currency Interest Rate Swap | Codman | Long
Derivative [Line Items]
Notional amount | SFr						SFr 291.2
Other income (expense) | Cross Currency Interest Rate Swap
Derivative [Line Items]
Loss recorded to AOCI		2,070,000
Other income (expense) | Cross Currency Interest Rate Swap | Codman
Derivative [Line Items]
Loss recorded to AOCI		$ 2,100,000