CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 276,472	$ 869,191
Short-term investments	1,710,397	1,245,782
Contracts receivable	25,538	61,896
Inventories	22,033	24,806
Other current assets	168,254	143,374
Total current assets	2,202,694	2,345,049
Property, plant and equipment, net	74,294	178,069
Right-of-use assets	181,544	17,974
Deposits and other assets	75,344	70,598
Total assets	2,533,876	2,611,690
Current liabilities:
Accounts payable	17,921	11,904
Accrued compensation	49,178	38,810
Accrued liabilities	140,101	88,560
Income taxes payable	6,249	36
Current portion of deferred contract revenue	90,577	97,714
Other current liabilities	7,535	3,526
Total current liabilities	311,561	240,550
Long-term deferred contract revenue	287,768	351,879
Long-term lease liabilities	178,941	19,432
Long-term mortgage debt	8,847	59,713
Long-term obligations	7,126	6,946
Total liabilities	1,960,989	1,839,953
Stockholders' equity:
Common stock, $0.001 par value; 300,000,000 shares authorized, 142,057,736 and 141,210,015 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	142	141
Additional paid-in capital	2,059,850	1,964,167
Accumulated other comprehensive loss	(57,480)	(32,668)
Accumulated deficit	(1,429,625)	(1,159,903)
Total stockholders' equity	572,887	771,737
Total liabilities and stockholders' equity	2,533,876	2,611,690
0 Percent Convertible Senior Notes [Member]
Current liabilities:
Convertible senior notes, net	622,242	619,119
0.125 Percent Convertible Senior Notes [Member]
Current liabilities:
Convertible senior notes, net	$ 544,504	$ 542,314