Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 58,019	$ 84,709
Restricted cash	7,537	8,119
Investment debt securities, available-for-sale	346,757	334,980
Accounts receivable, net of allowance for credit losses of $51 and $58, respectively	27,516	28,337
Prepaid expenses and other current assets	17,307	21,735
Current assets of discontinued operations	29,879	30,138
Total current assets	487,015	508,018
Fixed assets, net	1,002	3,281
Inventory	6,891	7,883
Security deposits	627	4,284
Other assets	3,062	3,557
Total assets	498,597	527,023
Current liabilities:
Accounts payable, accrued expenses and other liabilities	86,364	103,780
Short-term interest payable	8,635	8,601
Current liabilities of discontinued operations	56,428	55,780
Total current liabilities	151,427	168,161
Long-term liabilities:
Long-term debt	713,859	539,782
Long-term other liabilities	3,144	3,042
Total liabilities	868,430	710,985
Commitments and contingencies (Note 15)
Stockholders' deficit:
Common stock par value $0.001 per share; 90,000,000 shares authorized; 29,798,040 and 29,572,953 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	30	30
Additional paid-in capital	2,016,201	2,308,653
Accumulated other comprehensive loss, net	(2,548)	(2,873)
Accumulated deficit	(2,383,516)	(2,489,772)
Total stockholders' deficit	(369,833)	(183,962)
Total liabilities and stockholders' deficit	$ 498,597	$ 527,023