CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 25,843	$ 15,874
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	40,902	42,417
Loss on disposition of business	1,254
Loss on sale or abandonment of property and equipment	112	242
Write-off of certain intangible assets and other long-term assets	1,733	4,368
Acquired in-process research and development	6,671
Amortization of right-of-use operating lease assets	5,121	6,074
Adjustments and payments related to contingent consideration liability	1,999	2,207
Amortization of deferred credits	(54)	(54)
Amortization of long-term debt issuance costs	302	302
Stock-based compensation expense	9,093	6,732
Changes in operating assets and liabilities, net of acquisitions and divestitures:
Trade receivables	(9,472)	(7,833)
Other receivables	6,457	(793)
Inventories	(14,766)	3,185
Prepaid expenses and other current assets	(2,155)	(3,823)
Income tax refund receivables	(4)	(9)
Other assets	1,768	(685)
Trade payables	3,713	5,639
Accrued expenses	(20,966)	9,206
Income taxes payable	1,114	(860)
Deferred compensation payable	(2,549)	247
Operating lease liabilities	(5,609)	(6,259)
Other long-term obligations	287	263
Total adjustments	24,951	60,566
Net cash, cash equivalents, and restricted cash provided by operating activities	50,794	76,440
Capital expenditures for:
Property and equipment	(16,763)	(12,817)
Intangible assets	(912)	(1,469)
Proceeds from the sale of property and equipment	59	884
Payments from disposition of business	(971)
Cash paid in acquisitions, net of cash acquired	(4,712)	(1,858)
Net cash, cash equivalents, and restricted cash used in investing activities	(23,299)	(15,260)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	3,244	11,780
Proceeds from issuance of long-term debt	127,688	32,657
Payments on long-term debt	(124,563)	(91,535)
Contingent payments related to acquisitions	(32,798)	(489)
Payment of taxes related to an exchange of common stock	(1,015)	(488)
Net cash, cash equivalents, and restricted cash used in financing activities	(27,444)	(48,075)
Effect of exchange rates on cash, cash equivalents, and restricted cash	(2,564)	(349)
Net increase (decrease) in cash, cash equivalents and restricted cash	(2,513)	12,756
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	67,750	56,916
End of period	65,237	69,672
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO THE CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	63,003	69,672
Restricted cash reported in prepaid expenses and other current assets	$ 2,234
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	$ 65,237	69,672
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest (net of capitalized interest of $126 and $120, respectively)	2,317	2,923
Income taxes	7,863	4,611
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Property and equipment purchases in accounts payable	3,555	1,014
Acquisition purchases in other long-term obligations	(3,526)
Merit common stock surrendered (0 and 2 shares, respectively) in exchange for exercise of stock options		93
Right-of-use operating lease assets obtained in exchange for operating lease liabilities	$ 4,746	$ 361