Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 446,840	$ 330,362
Accounts receivable and unbilled receivables, net of allowances of $5,522 and $5,153, respectively	272,584	299,469
Inventories	116,144	147,549
Prepaid expenses	27,947	27,070
Other current assets	50,236	77,362
Total current assets	913,751	881,812
Property and equipment, net	106,880	93,961
Long-term investment in sales-type leases, net	41,631	32,924
Operating lease right-of-use assets	25,444	38,052
Goodwill	734,328	734,274
Intangible assets, net	218,861	242,906
Long-term deferred tax assets	35,964	22,329
Prepaid commissions	53,950	59,483
Other long-term assets	90,766	105,017
Total assets	2,221,575	2,210,758
Current liabilities:
Accounts payable	49,920	63,389
Accrued compensation	44,065	73,455
Accrued liabilities	150,385	172,655
Deferred revenues, net	124,991	118,947
Total current liabilities	369,361	428,446
Long-term deferred revenues	55,053	37,385
Long-term deferred tax liabilities	1,565	2,095
Long-term operating lease liabilities	32,845	39,405
Other long-term liabilities	6,428	6,719
Convertible senior notes, net	568,887	566,571
Total liabilities	1,034,139	1,080,621
Commitments and contingencies (Note 13)
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; 55,746 and 55,030 shares issued; 45,463 and 44,747 shares outstanding, respectively	56	55
Treasury stock at cost, 10,283 shares outstanding, respectively	(290,319)	(290,319)
Additional paid-in capital	1,110,096	1,046,760
Retained earnings	384,732	390,728
Accumulated other comprehensive loss	(17,129)	(17,087)
Total stockholders’ equity	1,187,436	1,130,137
Total liabilities and stockholders’ equity	$ 2,221,575	$ 2,210,758