Business Segment Information - Schedule of External Net Sales by SBU Reporting Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Sales Information [Line Items]
Reported Growth (as a percent)	3.00%		1.00%
Constant Currency Growth (as a percent)	3.00%
Net sales	$ 100,985	$ 97,640	$ 200,999	$ 199,919
BioStim [Member]
Sales Information [Line Items]
Reported Growth (as a percent)	4.00%		2.00%
Constant Currency Growth (as a percent)	4.00%		2.00%
Net sales	39,513	37,948	76,650	75,174
Biologics [Member]
Sales Information [Line Items]
Reported Growth (as a percent)	5.00%		1.00%
Constant Currency Growth (as a percent)	5.00%		1.00%
Net sales	13,853	13,240	26,863	26,600
Extremity Fixation [Member]
Sales Information [Line Items]
Reported Growth (as a percent)	18.00%		10.00%
Constant Currency Growth (as a percent)	14.00%		9.00%
Net sales	27,303	23,210	54,369	49,407
Spine Fixation [Member]
Sales Information [Line Items]
Reported Growth (as a percent)	(13.00%)		(12.00%)
Constant Currency Growth (as a percent)	(13.00%)		(12.00%)
Net sales	$ 20,316	$ 23,242	$ 43,117	$ 48,738