Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 330,362	$ 349,051
Accounts receivable and unbilled receivables, net of allowances of $5,153 and $5,272, respectively	299,469	240,894
Inventories	147,549	119,924
Prepaid expenses	27,070	22,499
Other current assets	77,362	48,334
Total current assets	881,812	780,702
Property and equipment, net	93,961	71,141
Long-term investment in sales-type leases, net	32,924	18,391
Operating lease right-of-use assets	38,052	48,549
Goodwill	734,274	738,900
Intangible assets, net	242,906	277,616
Long-term deferred tax assets	22,329	15,883
Prepaid commissions	59,483	63,795
Other long-term assets	105,017	127,519
Total assets	2,210,758	2,142,496
Current liabilities:
Accounts payable	63,389	71,513
Accrued compensation	73,455	71,130
Accrued liabilities	172,655	133,167
Deferred revenues, net	118,947	112,196
Convertible senior notes, net	0	488,152
Total current liabilities	428,446	876,158
Long-term deferred revenues	37,385	20,194
Long-term deferred tax liabilities	2,095	51,705
Long-term operating lease liabilities	39,405	39,911
Other long-term liabilities	6,719	7,839
Convertible senior notes, net	566,571	0
Total liabilities	1,080,621	995,807
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued	0	0
Common stock, $0.001 par value, 100,000 shares authorized; 55,030 and 54,073 shares issued; 44,747 and 44,179 shares outstanding, respectively	55	54
Treasury stock at cost, 10,283 and 9,894 shares outstanding, respectively	(290,319)	(238,109)
Additional paid-in capital	1,046,760	1,024,580
Retained earnings	390,728	368,571
Accumulated other comprehensive loss	(17,087)	(8,407)
Total stockholders’ equity	1,130,137	1,146,689
Total liabilities and stockholders’ equity	$ 2,210,758	$ 2,142,496
Treasury stock, shares outstanding (in shares)	10,283	9,894