Unaudited Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Operating activities:
Net income (loss)	$ (8,573)	$ 1,604	$ (11,023)	$ (17,240)
Adjust for net (income) loss from discontinued operations	(219)	183	(218)	4,049
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense, net			1,057	1,389
Bad debt expense			819	1,104	$ 1,841
Amortization of deferred revenue			(77)	(35)
Depreciation and amortization expense			10,462	10,890
Accretion expense			119	0
Change in fair value of interest rate swaps	3,234	(9,190)	(3,175)	(3,602)
Change in fair value of warrant liabilities			(15)	(148)
Interest income related to SEMTH master lease agreement			(7,495)	(1,394)
Gain on disposal of assets			(1,452)	(3,379)
Change in operating right-of-use assets			23	(18)
Amortization of debt discount and deferred financing costs			2,930	2,914
Changes in operating assets and liabilities:
Accounts receivable, net			(4,649)	(5,240)
Deferred rent assets			(701)	41
Prepaid expenses and other current assets			4,775	(584)
Other assets			2	126
Accounts payable			297	387
Accrued expenses and other current liabilities			(21,095)	(5,898)
Other long-term liabilities			(9)	8
Deferred revenue			2,023	517
Net cash used in continuing operating activities			(27,402)	(16,113)
Net cash provided by (used in) discontinued operating activities			100	(2,158)
Net cash used in operating activities			(27,302)	(18,271)
Investing activities:
Proceeds from sale of solar energy systems			2,853	3,631
Proceeds from investment related to SEMTH master lease agreement			10,784	5,290
Cash paid for acquisitions, net of cash acquired			0	(23,360)
Purchases of other property and equipment			(150)	(124)
Net cash provided by (used in) continuing investing activities			13,487	(14,563)
Net cash provided by discontinued investing activities			0	325
Net cash provided by (used in) investing activities			13,487	(14,238)
Financing activities:
Repayments of long-term non-recourse debt			(136,750)	(14,305)
Proceeds from issuance of non-recourse debt			130,000	0
Repayments under financing leases			0	(21)
Payment of deferred financing costs			(2,108)	0
Proceeds from issuance of common stock			0	150
Proceeds from exercise of stock options			0	535
Remittance of statutory tax withholding on stock-based payment awards			0	(17)
Share repurchases			0	(1,614)
Capital distributions to redeemable noncontrolling interests and noncontrolling interests			(140)	(253)
Net cash used in continuing financing activities			(8,998)	(15,525)
Net cash provided by discontinued financing activities			81	0
Net cash used in financing activities			(8,917)	(15,525)
Net change in cash and cash equivalents and restricted cash:			(22,732)	(48,034)
Cash and cash equivalents and restricted cash, beginning of period			172,941	240,144	240,144
Cash and cash equivalents and restricted cash, end of period	$ 150,209	$ 192,110	150,209	192,110	$ 172,941
Supplemental disclosure of cash flow information:
Cash paid for interest			16,536	15,980
Supplemental disclosures of noncash investing and financing information:
Settlement of operating lease liability			$ 0	$ 1,170