Business Combinations (Details Textual) - USD ($)			6 Months Ended	11 Months Ended	12 Months Ended
	Jul. 01, 2016	Feb. 11, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2009
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					9 years	10 years
Amortization expense related to intangible assets					$ 45,600,000	$ 16,100,000	$ 13,600,000
Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					8 years	9 years
Customer-Related Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					9 years	8 years
Ellipse Technologies Inc [Member]
Business Acquisition [Line Items]
Business acquisition. date of acquisition					Feb. 11, 2016
Payments To Acquire Businesses Gross		$ 380,000,000			$ 380,000,000
Business acquisition, potential future milestone payment		30,000,000	$ 30,000,000	$ 30,000,000	30,000,000
Cash payment on purchase of outstanding shares		382,200
Contingent liability		$ 18,800,000	30,000,000	30,000,000	30,000,000
Revenue from operation of NSO					57,500,000
Income (loss) from operation of NSO					3,900,000
Ellipse Technologies Inc [Member] | Amortization Charges [Member]
Business Acquisition [Line Items]
Amortization expense related to intangible assets						$ 26,000,000
Ellipse Technologies Inc [Member] | Fair Value Adjustment To Inventory [Member]
Business Acquisition [Line Items]
Fair value adjustment of acquired inventory					(14,700,000)	14,700,000
Ellipse Technologies Inc [Member] | Acquisition Related Costs [Member]
Business Acquisition [Line Items]
Acquisition costs related to merger						$ 4,000,000
Ellipse Technologies Inc [Member] | Business Transition Costs [Member]
Business Acquisition [Line Items]
Acquisition costs related to merger					$ 4,000,000
Ellipse Technologies Inc [Member] | Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					7 years
Ellipse Technologies Inc [Member] | Customer-Related Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					9 years
Ellipse Technologies Inc [Member] | Trade Name Related Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets, weighted-average useful life					7 years
Ellipse Technologies Inc [Member] | Traditional Working Capital Adjustments [Member]
Business Acquisition [Line Items]
Escrow cash received				600,000
Other Acquisitions [Member]
Business Acquisition [Line Items]
Business acquisition. date of acquisition					Jul. 01, 2016
Payments To Acquire Businesses Gross	$ 98,000,000
Cash payment on purchase of outstanding shares	$ 94,000,000
Other Acquisitions [Member] | Traditional Working Capital Adjustments [Member]
Business Acquisition [Line Items]
Escrow cash paid			400,000
Progentix Orthobiology [Member]
Business Acquisition [Line Items]
Advanced loan accordance to loan agreement			$ 5,300,000	$ 5,300,000	$ 5,300,000
Accrued interest rate of loan			6.00%	6.00%	6.00%
Progentix Orthobiology [Member] | Preferred Stock Purchase Agreement [Member]
Business Acquisition [Line Items]
Cash payment on purchase of outstanding shares								$ 10,000,000
Percentage of ownership Interests acquired								40.00%