CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017		Sep. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 13,250	[1]	$ (220)
Adjustment to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	4,276	[1]	2,739
Loss on disposal of asset	451
Provision for bad debt			85
Stock-based compensation	2,097		108
Amortization of debt issuance costs	35
Amortization of prepaid expenses and other assets	879
Deferred income tax expense	1,059
Other	(19)
Changes in assets and liabilities:
Accounts receivable	(5,033)		(2,169)
Prepaid expenses and other assets	(4,504)		3
Inventories	(6,675)		507
Accounts payable	4,504		154
Accrued liabilities	2,679		(439)
Net cash provided by operating activities	12,999		768
Cash flows from investing activities:
Investment in property, plant and equipment	(49,015)		(5,926)
Investment in intangible assets	(34)		(25)
Net cash used in investing activities	(49,049)		(5,951)
Cash flows from financing activities:
Payments under capital leases	(20)		(19)
Payments under notes payable	(451)		(142)
Proceeds from borrowings under the credit facility	3,000
Repayment of credit facility	(5,500)
Proceeds from pay down of promissory note related to membership units	4,303
Payments related to debt issuance costs	(111)
Proceeds from issuance of Class A common stock sold in initial public offering, net of offering costs	111,075
Distributions paid to unitholders	(25,818)
Net cash provided by (used in) financing activities	86,478		(161)
Net increase (decrease) in cash	50,428		(5,344)
Cash at beginning of period	3,568		6,923
Cash at end of period	53,996		1,579
Non-cash activities
Capitalized depreciation in property, plant and equipment	492		515
Notes payable issued for property, plant and equipment			257
Accrued interest from notes receivable issued for membership units	109		250
Cash paid for:
Interest	96		14
Income taxes	$ 45		$ 35

[1] Represents earnings per share of Class A common stock and weighted-average shares of Class A common stock outstanding for the period from May 17, 2017 through September 30, 2017, the period following the reorganization transactions and IPO. See Note 9.