Business Combinations (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Total current assets	$ 616,897	$ 702,827
Goodwill	498,686	154,281
Non-controlling interests	5,998	7,309
Variable Interest Entity [Member]
Business Acquisition [Line Items]
Non-controlling interests	5,998	7,309	$ 7,709	$ 8,310
Variable Interest Entity [Member] | Progentix Orthobiology [Member]
Business Acquisition [Line Items]
Total current assets	346	353
Identifiable intangible assets, net	11,437	13,048
Goodwill	12,654	12,654
Accounts payable and accrued expenses	481	574
Deferred tax liabilities, net	1,050	1,496
Non-controlling interests	$ 5,998	$ 7,309