CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Parent	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Accumulated Deficit	Noncontrolling Interests	Net Parent Investment	Total
Balance at the beginning of the period at Dec. 31, 2014							$ 27.3	$ 27.3
Contributions from parent							19.6	19.6
Equity based compensation from parent							0.1	0.1
Net loss							(6.7)	(6.7)
Balance at the end of the period at Dec. 31, 2015							40.3	40.3
Contributions from parent							31.1	31.1
Equity of parent issued for Bayou acquisition							33.0	33.0
Contribution of Magna acquisition from parent							12.7	12.7
Equity based compensation from parent							0.5	0.5
Net loss							(5.0)	(5.0)
Balance at the end of the period at Dec. 31, 2016							112.6	112.6
Balance at the end of the period (in shares) at Dec. 31, 2016		0	0
Contributions from parent							4.0	4.0
Equity based compensation from parent						$ 0.4	0.8	1.2
Net loss	$ (6.6)				$ (6.6)	(5.5)	(15.2)	(27.3)
Proceeds from shares sold to public	74.2	$ 0.1		$ 74.1				74.2
Proceeds from shares sold to public (in shares)		5,112,069
Underwriters fees and discounts	(4.2)			(4.2)				(4.2)
Proceeds from shares sold to related parties	10.9			10.9				10.9
Proceeds from shares sold to related parties (in shares)		750,000
Costs of the Offering	(3.9)			(3.9)				(3.9)
Obligation to related party	(3.0)			(3.0)				(3.0)
Reorganization	23.1		$ 0.1	23.0		79.1	$ (102.2)
Reorganization (in shares)		1,638,386	5,621,491
Shares issued for acquisition of ESCO	5.0			5.0				5.0
Shares issued for acquisition of ESCO (in shares)		344,828
Shares issued to pay for related party debt	8.2			8.2		18.0		26.2
Shares issued to pay for related party debt (in shares)		567,895	1,244,663
Balance at the end of the period at Dec. 31, 2017	$ 103.7	$ 0.1	$ 0.1	$ 110.1	$ (6.6)	$ 92.0		$ 195.7
Balance at the end of the period (in shares) at Dec. 31, 2017		8,413,178	6,866,154