CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities
Net income (loss)	$ (6.1)	$ 5.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18.4	16.8
Equity based compensation	1.7	1.5
Gain on debt retirement	(2.1)	0.0
Other costs, net	1.8	0.0
Changes in operating assets and liabilities
Accounts receivable	25.4	(8.6)
Contract assets	0.1	(2.9)
Inventory	1.4	(2.8)
Prepaid expenses	3.5	1.4
Other assets	(0.2)	0.9
Accounts payable	(8.7)	(0.6)
Accrued expenses	(10.4)	2.0
Operating lease, right-of-use obligations	(1.1)	0.0
Other long-term liabilities	0.5	1.1
Net cash provided by operating activities	24.2	14.2
Cash Flows from Investing Activities
Purchase of property and equipment	(5.8)	(16.0)
Proceeds from disposal of property and equipment	0.3	0.5
Net cash used in investing activities	(5.5)	(15.5)
Cash Flows from Financing Activities
Borrowings under Credit Facility	32.6	25.1
Principal payments on Credit Facility	(37.6)	(17.3)
Principal payments on Encina Master Financing Agreement	(5.0)	(4.8)
Principal payments on ESCO Note Payable	(3.6)	0.0
Principal payments on financing lease obligations	(2.6)	(2.2)
Repurchase of Class A Common Stock	(3.1)	0.0
Shares withheld on equity transactions	(0.3)	(0.4)
Net cash (used in) provided by financing activities	(19.6)	0.4
Decrease in Cash and Cash equivalents	(0.9)	(0.9)
Cash and Cash Equivalents, Beginning of Period	6.9	2.6
Cash and Cash Equivalents, End of Period	6.0	1.7
Supplemental Cash Flow Information
Interest paid	1.7	2.3
Supplemental Disclosure of Non-cash Investing and Financing Activities
Capital expenditures	0.1	(2.3)
Additions to fixed assets through financing leases	(1.0)	(0.8)
Early termination of financing leases	0.7	0.0
Initial operating lease right-of-use asset additions	0.0	(8.3)
Issuance of Class A Common Stock to related party	$ 0.0	$ 3.0