Business Segment Information - Schedule of Depreciation and Amortization by Reporting Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 18,659	$ 20,124	$ 20,841
Operating Segments [Member] | Bone Growth Therapies [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	1,770	2,133	2,754
Operating Segments [Member] | Spinal Implants [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	7,294	6,949	8,118
Operating Segments [Member] | Biologics [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	448	752	1,011
Operating Segments [Member] | Orthofix Extremities [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	5,342	6,040	5,742
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 3,805	$ 4,250	$ 3,216