CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 158,117	$ 258,874
Short-term marketable securities	372,235	190,318
Accounts receivable, net	41,393	35,910
Inventories	99,266	102,878
Prepaid expenses and other current assets	15,804	13,252
Total current assets	686,815	601,232
PROPERTY AND EQUIPMENT, net	179,824	166,188
INTANGIBLE ASSETS, net	9,012	12,506
GOODWILL	91,849	91,849
DEFERRED TAX ASSETS	16,433	3,339
OTHER ASSETS	30,554	28,225
Total assets	1,014,487	903,339
CURRENT LIABILITIES:
Accounts payable	43,721	34,712
Accrued payroll and related expenses	15,492	14,806
Taxes payable	1,210	902
Other accrued liabilities	11,898	12,106
Total current liabilities	72,321	62,526
LONG-TERM INCOME TAXES PAYABLE	15,280	15,588
OTHER LIABILITIES	14,854	14,814
Total liabilities	102,455	92,928
COMMITMENTS AND CONTINGENCIES (Notes 11, 12 and 13)
STOCKHOLDERS' EQUITY:
Common stock, $0.001 par value, Authorized - 140,000 shares, Outstanding - 59,913 and 59,910 shares in 2021 and 2020, respectively	28	28
Additional paid-in capital	162,301	190,920
Accumulated other comprehensive loss	(3,737)	(2,163)
Retained earnings	753,440	621,626
Total stockholders' equity	912,032	810,411
Total liabilities and stockholders' equity	$ 1,014,487	$ 903,339

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.