CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 74,516	$ 48,454	$ (9,843)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	81,804	84,066	94,070
Loss (gain) on disposition of business	1,417		(517)
Loss on sale or abandonment of property and equipment	380	1,303	2,159
Write-off of certain intangible assets and other long-term assets	2,281	4,412	36,609
Acquired in-process research and development	6,671		250
Amortization of right-of-use operating lease assets	10,394	11,718	12,746
Adjustments related to contingent consideration liabilities	4,611	3,161	(7,960)
Amortization of deferred credits	(107)	(108)	(130)
Amortization of long-term debt issuance costs	604	604	604
Deferred income taxes	(14,924)	(4,631)	(11,295)
Stock-based compensation expense	18,042	16,090	14,339
Changes in operating assets and liabilities, net of acquisitions and divestitures:
Trade receivables	(15,116)	(8,618)	10,425
Other receivables	4,154	(10,418)	1,668
Inventories	(47,929)	(25,183)	29,429
Prepaid expenses and other current assets	(1,798)	(3,555)	(446)
Prepaid income taxes	(379)	125	(162)
Income tax refund receivables	1,952	739	(339)
Other assets	657	(1,670)	(3,511)
Trade payables	12,661	6,050	333
Accrued expenses	(16,379)	36,462	4,603
Income taxes payable	4,521	(119)	(86)
Liabilities related to unrecognized tax benefits	(45)	314	(576)
Deferred compensation payable	(2,848)	1,303	1,953
Operating lease liabilities	(11,127)	(12,410)	(12,659)
Other long-term obligations	278	(858)	3,606
Total adjustments	39,775	98,777	175,113
Net cash, cash equivalents, and restricted cash provided by operating activities	114,291	147,231	165,270
Capital expenditures for:
Property and equipment	(45,029)	(27,939)	(45,988)
Intangible assets	(3,175)	(2,834)	(3,288)
Proceeds from the sale of property and equipment	65	1,037	42
Proceeds (payments) from disposition of business	(971)		1,285
Cash received for settlement of note receivable		2,000	250
Issuance of note receivable		(2,254)
Cash paid in acquisitions, net of cash acquired	(8,287)	(7,171)	(10,953)
Net cash, cash equivalents, and restricted cash used in investing activities	(57,397)	(37,161)	(58,652)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	20,070	21,306	6,635
Proceeds from issuance of long-term debt	215,205	98,421	68,625
Payments on long-term debt	(260,143)	(206,921)	(157,000)
Contingent payments related to acquisitions	(32,918)	(10,665)	(13,100)
Payment of taxes related to an exchange of common stock	(2,474)	(576)	(866)
Net cash, cash equivalents, and restricted cash used in financing activities	(60,260)	(98,435)	(95,706)
Effect of exchange rates on cash, cash equivalents, and restricted cash	(3,826)	(801)	1,684
Net increase (decrease) in cash, cash equivalents and restricted cash	(7,192)	10,834	12,596
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	67,750	56,916	44,320
End of period	60,558	67,750	56,916
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO THE CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	58,408	67,750	56,916
Restricted cash reported in prepaid expenses and other current assets	$ 2,150
Restricted Cash and Cash Equivalents, Current, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets, Current
Total cash, cash equivalents and restricted cash	$ 60,558	67,750	56,916
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest (net of capitalized interest of $858, $480 and $813, respectively)	6,258	5,261	10,077
Income taxes	17,092	8,828	8,918
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Property and equipment purchases in accounts payable	3,702	2,558	2,180
Current note receivable converted to equity investment			899
Proceeds from sale of business in other receivables			321
Acquisition purchases in accrued expenses and other long-term obligations	3,526		4,358
Merit common stock surrendered (18, 3, and 39 shares, respectively) in exchange for exercise of stock options	1,140	180	1,467
Right-of-use operating lease assets obtained in exchange for operating lease liabilities	$ 11,130	$ 1,524	$ 10,938