CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (35,903)	$ (22,418)
Adjustments to reconcile net loss to cash flows from operating activities:
Depreciation and amortization	19,197	19,643
Share-based compensation expense	18,343	15,451
Deferred income taxes	(29,301)	5,255
Change in the fair value of contingent consideration	19,067	(1,278)
Loss on debt extinguishment		171
Payment made for debt modification		(248)
Other non-cash charges	371	195
Changes in assets and liabilities:
Receivables	63,290	31,648
Contract assets	(6,849)	5,122
Inventory	(4,285)	(8,652)
Prepaid expenses and other assets	(15,351)	(16,807)
Right-of-use assets	4,129	4,177
Accounts payable and accrued expenses	(5,458)	(71,949)
Contract liabilities	(2,980)	(1,243)
Operating lease liabilities	(4,411)	(3,996)
Other long-term liabilities	1,819	(217)
Cash flows provided by (used in) operating activities	21,678	(45,146)
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions of property, plant and equipment	(7,791)	(7,986)
Proceeds from the sale of equipment		176
Proceeds from contingent consideration	501	6,430
Return of Fountain Healthcare Partners II, L.P. investment	485
Purchases of investments	(114,615)	(122,545)
Sales and maturities of investments	60,779	86,193
Cash flows used in investing activities	(60,641)	(37,732)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the issuance of ordinary shares under share-based compensation arrangements	1,795	2,053
Employee taxes paid related to net share settlement of equity awards	(17,069)	(10,413)
Proceeds from the issuance of long-term debt		23,567
Payment made for debt extinguishment		(262)
Principal payments of long-term debt	(750)
Cash flows (used in) provided by financing activities	(16,024)	14,945
NET DECREASE IN CASH AND CASH EQUIVALENTS	(54,987)	(67,933)
CASH AND CASH EQUIVALENTS—Beginning of period	337,544	272,961
CASH AND CASH EQUIVALENTS—End of period	282,557	205,028
Non-cash investing and financing activities:
Purchased capital expenditures included in accounts payable and accrued expenses	$ 4,058	$ 995