Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net loss	$ (18,844)	$ (16,077)
Net loss from discontinued operations	3,866	15,943
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	796	381
Bad debt expense	174	0
Depreciation and amortization expense	6,004	556
Change in fair value of obligation to issue shares of common stock	0	(361)
Change in fair value of interest rate swaps	5,588	0
Fair value change of warrant liability	(115)	(2,717)
Interest income under the investment in Master Lease	(213)	0
Gain on extinguishment of debt	0	(4,527)
Gain on disposal of assets	(2,658)	0
Loss on disposal of World Energy	3,083	0
Impairment expense	73	0
Change in operating right-of-use assets	15	0
Interest on finance leases	0	1
Amortization of debt discount	1,455	0
Changes in operating assets and liabilities:
Accounts receivable, net	(1,948)	0
Deferred rent assets	(335)	0
Prepaid expenses and other current assets	432	(757)
Other assets	126	0
Accounts payable	(698)	(611)
Accrued expenses and other current liabilities	(769)	(2,307)
Deferred revenue	290	0
Net cash used in continuing operating activities	(3,678)	(10,476)
Net cash used in discontinued operating activities	(4,573)	(8,620)
Investing activities:
Sale of solar energy systems	1,763	0
Purchases of other property, plant and equipment	(12)	0
Proceeds received from investment under the SEMTH master lease	1,011	0
Cash paid to acquire SEMTH assets, net of cash acquired	23,139	0
Net cash used in continuing investing activities	(20,377)	0
Net cash provided by discontinued investing activities	325	754
Financing activities:
Repayments of long term debt	(6,141)	0
Repayments under financing leases	(12)	(10)
Proceeds from issuance of common stock	150	0
Proceeds from exercise of stock options	283	258
Capital distributions to redeemable noncontrolling interests and noncontrolling interests	(196)	0
Net cash (used in) provided by continuing financing activities	(5,916)	248
Net cash provided by discontinued investing activities	0	(121)
Net change in cash and cash equivalents and restricted cash:	(34,219)	(18,215)
Cash and cash equivalents and restricted cash, beginning of period	240,144	351,826
Cash and cash equivalents and restricted cash, end of period	205,925	333,611
Supplemental disclosure of cash flow information:
Interest expense paid	4,050	18
Supplemental disclosures of noncash investing and financing information:
Settlement of contingent liability through issuance of shares	$ 0	$ 186