Revenue (Disaggregation Of Revenues, By Geography) (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 02, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total Revenues	$ 45,928	$ 648,754	$ 667,249	$ 972,052
Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	18,339	268,695	297,835	430,442
Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	27,589	380,059	369,414	541,610
U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	8,296	107,565	105,461	244,988
U.S. Land [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	4,917	87,432	78,537	178,345
U.S. Land [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	3,379	20,133	26,924	66,643
U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	15,567	197,058	233,580	340,565
U.S. Offshore [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	8,196	103,646	129,021	143,973
U.S. Offshore [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	7,371	93,412	104,559	196,592
International [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	22,065	344,131	328,208	386,499
International [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	5,226	77,617	90,277	108,124
International [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	$ 16,839	$ 266,514	$ 237,931	$ 278,375