Segment Reporting (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	3
Segment Reporting
Revenues	$ 187.8	$ 336.9
Cost of services	147.9	263.0
General and administrative	22.1	26.7
Depreciation and amortization	35.0	34.8
Gain on debt retirement	(2.1)	0.0
Operating income (loss)	(15.1)	12.4
Interest expense, net	3.4	5.8
Income tax expense	0.0	2.2
Net income (loss)	(18.5)	4.4
Capital expenditures	7.8	23.5
Property and equipment, net	189.4	218.9
Total assets	240.6	293.5
Operating Segments | High Specification Rigs
Segment Reporting
Revenues	82.5	132.1
Cost of services	71.5	114.8
General and administrative	0.0	0.0
Depreciation and amortization	20.2	20.1
Gain on debt retirement	0.0	0.0
Operating income (loss)	(9.2)	(2.8)
Interest expense, net	0.0	0.0
Income tax expense	0.0	0.0
Net income (loss)	(9.2)	(2.8)
Capital expenditures	5.0	11.1
Property and equipment, net	115.8	132.2
Total assets	154.3	186.1
Operating Segments | Completion and Other Services
Segment Reporting
Revenues	98.5	184.3
Cost of services	73.7	139.0
General and administrative	0.0	0.0
Depreciation and amortization	10.2	11.4
Gain on debt retirement	0.0	0.0
Operating income (loss)	14.6	33.9
Interest expense, net	0.0	0.0
Income tax expense	0.0	0.0
Net income (loss)	14.6	33.9
Capital expenditures	2.0	4.1
Property and equipment, net	30.8	40.8
Total assets	41.1	57.4
Operating Segments | Processing Solutions
Segment Reporting
Revenues	6.8	20.5
Cost of services	2.7	9.2
General and administrative	0.0	0.0
Depreciation and amortization	3.2	2.2
Gain on debt retirement	0.0	0.0
Operating income (loss)	0.9	9.1
Interest expense, net	0.0	0.0
Income tax expense	0.0	0.0
Net income (loss)	0.9	9.1
Capital expenditures	0.5	7.8
Property and equipment, net	37.7	40.5
Total assets	38.4	42.6
Segment Reconciling Items
Segment Reporting
Revenues	0.0	0.0
Cost of services	0.0	0.0
General and administrative	22.1	26.7
Depreciation and amortization	1.4	1.1
Gain on debt retirement	(2.1)	0.0
Operating income (loss)	(21.4)	(27.8)
Interest expense, net	3.4	5.8
Income tax expense	0.0	2.2
Net income (loss)	(24.8)	(35.8)
Capital expenditures	0.3	0.5
Property and equipment, net	5.1	5.4
Total assets	$ 6.8	$ 7.4