Business Combinations (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Total current assets	$ 692,164	$ 702,827
Identifiable intangible assets, net	266,089	85,076
Goodwill	404,307	154,281	$ 154,273	$ 154,443
Non-controlling interests	6,852	7,309
Variable Interest Entity [Member]
Business Acquisition [Line Items]
Non-controlling interests	6,852	7,309	$ 8,147	$ 8,310
Variable Interest Entity [Member] | Progentix Orthobiology [Member]
Business Acquisition [Line Items]
Total current assets	358	353
Identifiable intangible assets, net	12,511	13,048
Goodwill	12,654	12,654
Accounts payable and accrued expenses	714	574
Deferred tax liabilities, net	1,304	1,496
Non-controlling interests	$ 6,852	$ 7,309