Revenue (Disaggregation Of Revenues, By Geography) (Details) - USD ($) $ in Thousands	1 Months Ended		2 Months Ended	3 Months Ended
	Feb. 02, 2022	Feb. 02, 2021	Mar. 31, 2021	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total Revenues	$ 45,928	$ 45,928	$ 105,843	$ 197,930
Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		18,339	42,448	88,756
Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		27,589	63,395	109,174
U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		8,296	13,235	38,510
U.S. Land [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		4,917	11,109	33,962
U.S. Land [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		3,379	2,126	4,548
U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		15,567	39,824	61,074
U.S. Offshore [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		8,196	20,403	32,753
U.S. Offshore [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		7,371	19,421	28,321
International [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	$ 22,065	22,065	52,784	98,346
International [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		5,226	10,936	22,041
International [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total Revenues		$ 16,839	$ 41,848	$ 76,305