Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 4,644	$ 12,325
Accounts receivable, net	200,909	98,057
Inventories	60,384	141,355
Prepaid expenses and other assets	7,130	35,105
Total current assets	273,067	286,842
Property, plant and equipment, net	671,035	589,892
Operating lease assets	27,286	30,991
Goodwill and other intangible assets, net	18,267	18,582
Other assets	7,157	7,398
Total assets	996,812	933,705
Current liabilities
Accounts payable	31,795	19,935
Accrued expenses and other liabilities	88,919	44,064
Accrued warranty	5,092	4,600
Line of credit	56,500	222,000
Total current liabilities	182,306	290,599
Deferred income taxes	68,224	68,224
Operating lease liabilities	20,197	23,974
Non-current accrued warranty	17,874	20,999
Other long-term liabilities	16,560	11,560
Total liabilities	305,161	415,356
Commitments and contingencies
Stockholders' Equity:
Preferred stock, $0.01 par value, 3,000,000 shares authorized; none issued and outstanding	0	0
Common stock, $0.01 par value, 360,000,000 shares authorized; 140,958,411 and 140,841,833 shares issued and 108,595,105 and 108,743,423 share outstanding, at September 30, 2023 and December 31, 2022, respectively	1,410	1,408
Additional paid-in capital	137,088	131,539
Retained earnings	1,314,107	1,130,674
Treasury stock, at cost, 32,363,306 shares at September 30, 2023 and 32,098,410 shares at December 31, 2022	(760,954)	(745,272)
Total stockholders' equity	691,651	518,349
Total liabilities and stockholders' equity	$ 996,812	$ 933,705