CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 690,630	$ 2,481,269
Restricted cash	158,958	118,633
Available-for-sale securities, at fair value (amortized cost $1,355,614 and allowance for credit losses of $0 at December 31, 2022 and amortized cost $1,242,933 and allowance for credit losses of $0 at December 31, 2021)	1,332,943	1,240,265
Equity securities	134,836	147,995
Accounts receivable	129,450	92,675
Inventory	645,636	269,163
Contract assets	62,456	38,637
Prepaid expenses and other current assets	150,389	59,888
Total current assets	3,305,298	4,448,525
Restricted cash	699,756	532,292
Property, plant and equipment, net	719,793	255,623
Right of use assets related to finance leases, net	53,742	32,494
Right of use assets related to operating leases, net	360,287	212,537
Equipment related to power purchase agreements and fuel delivered to customers, net	89,293	72,902
Contract assets	41,831	120
Goodwill	248,607	220,436
Intangible assets, net	207,725	158,208
Investments in non-consolidated entities and non-marketable equity securities	31,250	12,892
Other assets	6,694	4,047
Total assets	5,764,276	5,950,076
Current liabilities:
Accounts payable	191,895	92,307
Accrued expenses	156,430	79,237
Deferred revenue and other contract liabilities	131,813	116,377
Operating lease liabilities	48,861	30,822
Finance lease liabilities	8,149	4,718
Finance obligations	58,925	42,040
Current portion of long-term debt	5,142	15,252
Contingent consideration, loss accrual for service contracts, and other current liabilities	34,060	39,800
Total current liabilities	635,275	420,553
Deferred revenue and other contract liabilities	98,085	66,713
Operating lease liabilities	271,504	175,635
Finance lease liabilities	37,988	24,611
Finance obligations	270,315	211,644
Convertible senior notes, net	193,919	192,633
Long-term debt	3,925	112,794
Contingent consideration, loss accrual for service contracts, and other liabilities	193,051	139,797
Total liabilities	1,704,062	1,344,380
Stockholders' equity:
Common stock, $0.01 par value per share; 1,500,000,000 shares authorized; Issued (including shares in treasury): 608,421,785 at December 31, 2022 and 594,729,610 at December 31, 2021	6,084	5,947
Additional paid-in capital	7,297,306	7,070,710
Accumulated other comprehensive loss	(26,004)	(1,532)
Accumulated deficit	(3,120,911)	(2,396,903)
Less common stock in treasury: 18,076,127 at December 31, 2022 and 17,074,710 at December 31, 2021	(96,261)	(72,526)
Total stockholders' equity	4,060,214	4,605,696
Total liabilities and stockholders' equity	$ 5,764,276	$ 5,950,076