Goodwill And Other Intangible Assets (Goodwill) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2014	$ 13,091
Goodwill, Acquired During Period	6,520
Foreign currency translation effects	(595)
Balance as of June 30, 2015	19,016
Knee
Goodwill [Roll Forward]
Balance as of December 31, 2014	3,639
Goodwill, Acquired During Period	1,760
Foreign currency translation effects	(213)
Balance as of June 30, 2015	5,186
Hip
Goodwill [Roll Forward]
Balance as of December 31, 2014	597
Goodwill, Acquired During Period	392
Foreign currency translation effects	(68)
Balance as of June 30, 2015	921
Biologics and Spine
Goodwill [Roll Forward]
Balance as of December 31, 2014	7,553
Goodwill, Acquired During Period	0
Foreign currency translation effects	0
Balance as of June 30, 2015	7,553
Extremities
Goodwill [Roll Forward]
Balance as of December 31, 2014	411
Goodwill, Acquired During Period	4,368
Foreign currency translation effects	(237)
Balance as of June 30, 2015	4,542
Other
Goodwill [Roll Forward]
Balance as of December 31, 2014	891
Goodwill, Acquired During Period	0
Foreign currency translation effects	(77)
Balance as of June 30, 2015	$ 814