Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 802,751	$ 489,941
Marketable securities	25,758	0
Accounts receivable, net	377,969	497,688
Inventories	198,765	113,798
Prepaid expenses and other current assets	35,067	40,975
Total current assets	1,440,310	1,142,402
Property, plant and equipment, net	349,202	110,481
Marketable securities, non-current	37,852	0
Right-of-use assets	127,622	100,544
Goodwill	337,021	337,032
Intangible assets, net	98,655	122,431
Deferred tax asset	20,089	44,762
Other non-current assets	19,623	13,512
Total assets	2,430,374	1,871,164
Current liabilities:
Accounts payable	101,492	86,316
Accrued payroll and related expenses	40,385	34,781
Income taxes payable	66,945	127,788
Operating lease liabilities	10,039	7,799
Contingent consideration	5,986	5,987
Deferred consideration	41,945	42,000
Other current liabilities	56,728	32,290
Total current liabilities	323,520	336,961
Operating lease liabilities - non-current	128,556	100,706
Deferred consideration - non-current	36,491	73,951
Contingent consideration - non-current	87	5,909
Other non-current liabilities	12,358	20,934
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $.001 par value per share; 5,000 shares authorized; none issued or outstanding at December 31, 2021 and 2020	0	0
Common stock, $.001 par value per share; 97,500 shares authorized; 41,686 and 42,290 shares issued and outstanding at December 31, 2021 and December 31, 2020, respectively	42	42
Additional paid-in capital	279,768	388,121
Accumulated other comprehensive income (loss)	355	(431)
Retained earnings	1,649,197	944,971
Total stockholders’ equity	1,929,362	1,332,703
Total liabilities and stockholders’ equity	$ 2,430,374	$ 1,871,164