Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 13,489	$ 35,281
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	50,321	41,786
Loss on disposal of property and equipment	627	37
Income tax expense	852	0
Amortization of debt issuance costs	818	498
Bad debts	92	5
Loss on extinguishment of debt	0	2,065
Equity in net losses of investments	331	734
Equity-based compensation	20,566	3,564
Changes in operating assets and liabilities:
Accounts receivable	4,861	(2,325)
Prepaid expenses	1,062	1,156
Other current assets	(100)	(788)
Other assets	(853)	(423)
Accounts payable	(432)	2,496
Accrued salaries and benefits	3,214	3,125
Accrued expenses	1,412	(652)
Accrued impact fee expense	0	(27,018)
Deferred revenue	(679)	8,833
Customer deposits	762	759
Other long term liabilities	(112)	(64)
Net cash provided by operating activities	96,231	69,069
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(160,773)	(219,916)
Acquisition of intangible asset	(25)	(33)
Escrow deposit	(3,508)	0
Proceeds from sale of property and equipment	0	100
Proceeds from notes receivable	0	17
Purchase of portfolio energy credits	(67)	(64)
Net cash used in investing activities	(164,373)	(219,896)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of tax withholdings upon settlement of restricted stock unit awards	(1,220)	0
Proceeds from borrowings	0	976,000
Change in long term deposit	(996)	0
Proceeds from borrowings	(3,000)	(619,800)
Debt issuance costs on new loan	0	(7,299)
Deferred offering costs paid	0	(1)
Dividends paid to Class A common stockholders	(1,258)	0
Distributions paid to non-controlling interest/members	(6,046)	(171,000)
Net cash (used in) provided by financing activities	(12,520)	177,900
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(80,662)	27,073
CASH AND CASH EQUIVALENTS—Beginning of period	264,666	22,713
CASH AND CASH EQUIVALENTS—End of period	184,004	49,786
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest, net of amounts capitalized	11,618	8,408
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Increase (decrease) in liabilities incurred to acquire property and equipment	5,542	(16,026)
Increase in liabilities incurred related to deferred offering costs	0	1,691
Increase in liabilities incurred related to debt refinancing	0	1,487
Dividends payable on unvested restricted stock units	62	0
Distributions declared but not paid	0	5,883
Distributions used for payment of option loans and related interest	2	168
Decrease in non-controlling interest as a result of exchanges for Class A common stock	(37,676)	0
Recognition of liabilities under tax receivable agreement	39,534	0
Increase in deferred tax asset as a result of exchanges for Class A common stock	$ 20,349	$ 0