CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 212,815	$ 356,332
Marketable securities	45,900	72,180
Short-term investments	118,514	14,510
Accounts and notes receivable, net of allowance of $1,927 and $2,203 as of June 30, 2022 and December 31, 2021, respectively	379,672	320,819
Contract assets, net	196,754	180,421
Inventory	154,297	108,688
Prepaid expenses and other current assets	61,839	56,540
Total current assets	1,169,791	1,109,490
Property and equipment, net	157,916	138,457
Deferred tax assets, net	100,548	127,193
Intangible assets, net	13,934	15,470
Goodwill	45,004	43,592
Long-term investments	24,925	31,232
Long-term notes receivable, net	8,992	11,256
Long-term contract assets, net	28,240	29,753
Strategic investments	281,691	83,520
Other long-term assets	100,982	98,247
Total assets	1,932,023	1,688,210
Current liabilities:
Accounts payable	60,689	32,220
Accrued liabilities	100,980	103,707
Current portion of deferred revenue	253,185	265,591
Customer deposits	11,330	10,463
Other current liabilities	6,787	6,540
Total current liabilities	432,971	418,521
Deferred revenue, net of current portion	269,477	185,721
Liability for unrecognized tax benefits	7,692	3,797
Long-term deferred compensation	5,517	5,679
Deferred tax liability, net	1	811
Long-term lease liabilities	18,210	20,440
Other long-term liabilities	4,504	5,392
Total liabilities	738,372	640,361
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, $0.00001 par value; 25,000,000 shares authorized; no shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively
Common stock, $0.00001 par value; 200,000,000 shares authorized; 71,077,699 and 70,896,856 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	1	1
Additional paid-in capital	1,139,086	1,095,229
Treasury stock at cost, 20,220,227 shares as of June 30, 2022 and December 31, 2021	(155,947)	(155,947)
Retained earnings	215,716	109,883
Accumulated other comprehensive income (loss)	(5,205)	(1,317)
Total stockholders' equity	1,193,651	1,047,849
Total liabilities and stockholders' equity	$ 1,932,023	$ 1,688,210