Revenue Recognition and Accounts Receivable - Schedule of Net Sales by Major Product Category by Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 121,394	$ 73,135	$ 226,987	$ 177,958
Change	66.00%		27.60%
Bone Growth Therapies [Member]
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 49,706	28,379	$ 92,653	73,822
Change	75.20%		25.50%
Spinal Implants [Member]
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 30,092	18,594	$ 55,793	41,520
Change	61.80%		34.40%
Biologics [Member]
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 14,852	11,125	$ 28,544	25,074
Change	33.50%		13.80%
Global Spine [Member]
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 94,650	58,098	$ 176,990	140,416
Change	62.90%		26.00%
Global Orthopedics [Member]
Revenue Recognition And Accounts Receivable [Line Items]
Net sales	$ 26,744	$ 15,037	$ 49,997	$ 37,542
Change	77.90%		33.20%