SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Property, Plant And Equipment Balances And Corresponding Lives) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 373,697	$ 341,089
Less: Accumulated depreciation	(168,516)	(147,463)
Property, plant and equipment, net	205,181	193,626
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	2,189	3,308
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 17,611	16,271
Buildings and building improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Buildings and building improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 75,575	41,154
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	1 year
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Machinery and production equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 103,083	86,010
Machinery and production equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Machinery and production equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Surgical instrument kits
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 15,916	10,758
Surgical instrument kits | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Surgical instrument kits | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Information systems and hardware
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 93,742	90,672
Information systems and hardware | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	1 year
Information systems and hardware | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years
Furniture, fixtures, and office equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 15,010	14,861
Furniture, fixtures, and office equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	1 year
Furniture, fixtures, and office equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 50,571	$ 78,055