Business Segment Information - Summary of Net Sales by Geographic Destination for Each Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 104,823	$ 109,112
Global Spine [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	82,318	85,918
Global Extremities [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	22,505	23,194
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	83,149	86,124
U.S. [Member] | Global Spine [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	77,106	79,526
U.S. [Member] | Global Extremities [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	6,043	6,598
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	21,674	22,988
International [Member] | Global Spine [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	5,212	6,392
International [Member] | Global Extremities [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 16,462	$ 16,596