Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 572,609	$ 21,496
Restricted cash	39,900	19,700
Accounts receivable (net of allowance for doubtful accounts of $5,047 and $4,796 as of December 31, 2020 and September 30, 2021, respectively)	67,243	76,298
Notes receivable	10,260	20,839
Inventories, net	47,820	44,968
Prepaid expenses and other current assets	12,964	6,022
Amount due from related parties	128
Total Current Assets	750,924	189,323
Property, plant and equipment, net	222,771	198,017
Land use rights, net	13,935	14,001
Acquired intangible assets, net	2,024	2,279
Other non-current assets	702	890
Total Assets	990,356	404,510
Current liabilities:
Accounts payable	36,557	42,007
Advance from customers	2,343	2,446
Accrued expenses and other current liabilities	48,065	60,628
Income tax payables	665	664
Short-term bank borrowings	22,851	12,184
Notes payable	43,131	35,782
Bonds payable		29,915
Total Current Liabilities	153,612	183,626
Deposit liability for series B2 convertible preferred shares (“Series B2 Preferred”)		21,792
Long-term bonds payable	73,147	73,147
Warrant liability	2,461
Share-based compensation liability	8,841
Other non-current liabilities	35,511	110,597
Total Liabilities	273,572	389,162
Mezzanine Equity (Note 14 and Note 16)
Series C1 convertible redeemable preferred shares (“Series C1 Preferred”) (US$0.01 par value; 26,757,258 authorized, issued and outstanding as of December 31, 2020 and nil authorized, issued and outstanding as of September 30, 2021)		80,581
Series C2 convertible redeemable preferred shares (“Series C2 Preferred”) (US$0.01 par value; 20,249,450 authorized, issued and outstanding as of December 31, 2020 and nil authorized, issued and outstanding as of September 30, 2021)		81,966
Series D1 convertible redeemable preferred shares (“Series D1 Preferred”) (US$0.01 par value; 22,311,516 authorized, issued and outstanding as of December 31, 2020 and nil authorized, issued and outstanding as of September 30, 2021)		146,583
Redeemable noncontrolling interests		90,820
Total Mezzanine Equity		399,950
Commitments and contingencies (Note 21)
Shareholders’ Equity
Common Stock (par value of US$0.0001 per share, 240,450,000 and 750,000,000 shares authorized as of December 31, 2020 and September 30, 2021; 99,028,297 and 300,522,394 shares issued, and 99,028,297 and 298,834,894 shares outstanding as of December 31, 2020 and September 30, 2021)	30	6
Additional paid-in capital	1,291,199
Statutory reserves	6,032	6,032
Accumulated deficit	(585,460)	(397,996)
Accumulated other comprehensive income	4,983	7,356
Total Shareholders’ (Deficit)/Equity	716,784	(384,602)
Total Liabilities, Mezzanine Equity and Shareholders’ Equity	$ 990,356	$ 404,510