Business Segment Information - Schedule of Net Sales by Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net Sales	$ 108,537	$ 98,497	$ 104,075	$ 98,679	$ 104,622	$ 101,151	$ 100,954	$ 89,762	$ 409,788	$ 396,489	$ 402,277
Percent of Total Net Sales									100.00%	100.00%	100.00%
BioStim [Member]
Segment Reporting Information [Line Items]
Net Sales									$ 176,561	$ 164,955	$ 154,676
Percent of Total Net Sales									43.10%	41.60%	38.50%
Biologics [Member]
Segment Reporting Information [Line Items]
Net Sales									$ 57,912	$ 59,832	$ 55,881
Percent of Total Net Sales									14.10%	15.10%	13.90%
Extremity Fixation [Member]
Segment Reporting Information [Line Items]
Net Sales									$ 102,683	$ 96,034	$ 109,678
Percent of Total Net Sales									25.10%	24.20%	27.30%
Spine Fixation [Member]
Segment Reporting Information [Line Items]
Net Sales									$ 72,632	$ 75,668	$ 82,042
Percent of Total Net Sales									17.70%	19.10%	20.40%