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Business Segment Information - Summary of EBIDTA by Reporting Segment (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Segment Reporting Information [Line Items]    
Total EBITDA $ 12,383 $ 875
Depreciation and amortization (6,327) (5,727)
Interest expense, net (423) (257)
Income (loss) before income taxes 5,633 (5,109)
Operating Segments [Member] | Global Spine [Member]    
Segment Reporting Information [Line Items]    
Total EBITDA 22,417 10,575
Operating Segments [Member] | Global Extremities [Member]    
Segment Reporting Information [Line Items]    
Total EBITDA (1,894) (173)
Corporate, Non-Segment [Member]    
Segment Reporting Information [Line Items]    
Total EBITDA $ (8,140) $ (9,527)