Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 260,232	$ 194,616
Short-term investments	59,923	237,983
Accounts receivable, net	266,869	248,872
Inventories, net	194,012	200,410
Prepaid expenses and other current assets	68,470	65,477
Total current assets	849,506	947,358
Property and equipment, net	254,399	243,717
Goodwill	467,547	262,242
Intangible assets, net	172,719	84,083
Operating lease right-of-use assets	67,674	70,407
Other long-term assets	72,643	44,082
Total assets	1,884,488	1,651,889
Liabilities and stockholders' equity
Accounts payable and accrued expenses	51,124	52,192
Accrued compensation	87,068	47,732
Deferred revenue - current	132,151	131,445
Other lease liabilities - current	15,801	13,431
Other taxes payable	48,129	40,607
Debt, current	5,000	0
Other current liabilities	42,578	20,716
Total current liabilities	381,851	306,123
Deferred income taxes	25,288	14,065
Income tax payable - non-current	61,623	69,151
Liability for uncertain tax positions	10,868	6,652
Deferred revenue - non-current	36,335	33,480
Operating lease liabilities - non-current	35,854	40,650
Debt, non-current	92,036	0
Other long-term liabilities	15,762	5,418
Total liabilities	659,617	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; 131,246,615 and 130,504,535 shares issued and outstanding, respectively	1,312	1,305
Additional paid-in capital	1,033,284	953,578
Retained earnings	211,101	242,537
Accumulated other comprehensive loss	(20,826)	(21,070)
Total stockholders’ equity	1,224,871	1,176,350
Total liabilities and stockholders’ equity	$ 1,884,488	$ 1,651,889