Business Segment and Significant Customer Information - Summary of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue
Total revenue	$ 73,238	$ 35,601	$ 131,569	$ 55,767
Operating costs and expenses
Operating costs	59,405	36,056	103,338	61,413
General and administrative	6,910	4,967	13,492	10,462
Depreciation	11,087	14,161	22,382	28,286
Gain on EDC sale	(60,781)		(60,781)
Total operating costs and expenses	16,621	55,184	78,431	100,161
(Loss) income from operations	56,617	(19,583)	53,138	(44,394)
Other (expense) income
Interest income	7	10	11	110
Interest expense and other financing charges	(8,503)	(8,511)	(17,007)	(17,021)
Other, net	(1,011)	(179)	(1,786)	(793)
Total other expense	(9,507)	(8,680)	(18,782)	(17,704)
Income (loss) before income taxes	47,110	(28,263)	34,356	(62,098)
Reconciliation of income from operations to segment adjusted operating income:
(Loss) income from operations	56,617	(19,583)	53,138	(44,394)
Depreciation expense	11,087	14,161	22,382	28,286
Contract Drilling Services
Revenue
Total revenue	42,744	31,655	87,657	49,380
Management Fees
Revenue
Total revenue	2,840	497	3,943	595
Reimbursables and Other
Revenue
Total revenue	27,654	3,449	39,969	5,792
Operating Segments | Drilling Services
Revenue
Total revenue	47,863	34,366	97,959	54,434
Operating costs and expenses
Operating costs	36,164	34,867	72,602	60,224
Depreciation	10,695	13,752	21,551	27,467
Total operating costs and expenses	46,859	48,619	94,153	87,691
(Loss) income from operations	1,004	(14,253)	3,806	(33,257)
Other (expense) income
Income (loss) before income taxes	1,004	(14,253)	3,806	(33,257)
Reconciliation of income from operations to segment adjusted operating income:
(Loss) income from operations	1,004	(14,253)	3,806	(33,257)
Depreciation expense	10,695	13,752	21,551	27,467
Segment adjusted opearting income	11,699	(501)	25,357	(5,790)
Operating Segments | Drilling Services | Contract Drilling Services
Revenue
Total revenue	42,744	31,655	87,657	49,380
Operating Segments | Drilling Services | Reimbursables and Other
Revenue
Total revenue	5,119	2,711	10,302	5,054
Operating Segments | Managed Services
Revenue
Total revenue	25,375	1,235	33,610	1,333
Operating costs and expenses
Operating costs	23,241	1,189	30,736	1,189
Total operating costs and expenses	23,241	1,189	30,736	1,189
(Loss) income from operations	2,134	46	2,874	144
Other (expense) income
Income (loss) before income taxes	2,134	46	2,874	144
Reconciliation of income from operations to segment adjusted operating income:
(Loss) income from operations	2,134	46	2,874	144
Segment adjusted opearting income	2,134	46	2,874	144
Operating Segments | Managed Services | Management Fees
Revenue
Total revenue	2,840	497	3,943	595
Operating Segments | Managed Services | Reimbursables and Other
Revenue
Total revenue	22,535	738	29,667	738
Operating Segments | Unallocated
Operating costs and expenses
General and administrative	6,910	4,967	13,492	10,462
Depreciation	392	409	831	819
Gain on EDC sale	(60,781)		(60,781)
Total operating costs and expenses	(53,479)	5,376	(46,458)	11,281
(Loss) income from operations	53,479	(5,376)	46,458	(11,281)
Other (expense) income
Interest income	7	10	11	110
Interest expense and other financing charges	(8,503)	(8,511)	(17,007)	(17,021)
Other, net	(1,011)	(179)	(1,786)	(793)
Total other expense	(9,507)	(8,680)	(18,782)	(17,704)
Income (loss) before income taxes	43,972	(14,056)	27,676	(28,985)
Reconciliation of income from operations to segment adjusted operating income:
(Loss) income from operations	53,479	(5,376)	46,458	(11,281)
Depreciation expense	$ 392	$ 409	$ 831	$ 819