Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 197,319	$ 194,616
Short-term investments	92,853	237,983
Accounts receivable, net	214,620	248,872
Inventories, net	209,558	200,410
Prepaid expenses and other current assets	72,956	65,477
Total current assets	787,306	947,358
Property and equipment, net	253,073	243,717
Goodwill	487,101	262,242
Intangible assets, net	183,067	84,083
Operating lease right-of-use assets	69,395	70,407
Other long-term assets	63,930	44,082
Total assets	1,843,872	1,651,889
Current liabilities:
Accounts payable and accrued expenses	48,886	52,192
Accrued compensation	53,496	47,732
Deferred revenue - current	116,871	131,445
Operating lease liabilities - current	16,177	13,431
Other taxes payable	41,604	40,607
Debt, current	3,500	0
Other current liabilities	50,259	20,716
Total current liabilities	330,793	306,123
Deferred income taxes	41,514	14,065
Income tax payable - non-current	61,628	69,151
Liability for uncertain tax positions	6,867	6,652
Deferred revenue - non-current	34,210	33,480
Operating lease liabilities - non-current	37,767	40,650
Debt, non-current	84,289	0
Other long-term liabilities	7,606	5,418
Total liabilities	604,674	475,539
Commitments and contingencies
Stockholders' equity:
Preferred stock:  par value $0.01;  5,000,000 shares authorized; none issued and outstanding	0	0
Common stock:  par value $0.01;  360,000,000 shares authorized; 131,245,640 shares and 130,504,535 shares issued and outstanding, respectively	1,312	1,305
Additional paid-in capital	1,012,656	953,578
Retained earnings	247,970	242,537
Accumulated other comprehensive loss	(22,740)	(21,070)
Total stockholders’ equity	1,239,198	1,176,350
Total liabilities and stockholders’ equity	$ 1,843,872	$ 1,651,889