Revenue (Disaggregation Of Revenues, By Geography) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 02, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 45,928	$ 165,892	$ 151,582	$ 271,735	$ 385,821	$ 385,821
U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues	8,296	27,570	22,710	40,805		70,129
U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues	15,567	53,464	58,561	93,288		138,618
International [Member]
Disaggregation of Revenue [Line Items]
Total revenues	22,065	84,858	70,311	137,642	$ 177,074	177,074
Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	18,339	67,237		109,685
Rentals [Member] | U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues	4,917	20,789		31,898
Rentals [Member] | U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues	8,196	26,890		47,293
Rentals [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Total revenues	5,226	19,558		30,494
Well Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	27,589	98,655		162,050
Well Services [Member] | U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues	3,379	6,781		8,907
Well Services [Member] | U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues	7,371	26,574		45,995
Well Services [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 16,839	$ 65,300		$ 107,148
Drilling Products and Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			67,349			171,343
Drilling Products and Services [Member] | U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues			19,538			56,193
Drilling Products and Services [Member] | U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues			28,587			65,811
Drilling Products and Services [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Total revenues			19,225			49,338
Production Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			43,402			118,866
Production Services [Member] | U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues			6			4,633
Production Services [Member] | U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues			6,363			17,663
Production Services [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Total revenues			37,033			96,571
Technical Solutions [Member]
Disaggregation of Revenue [Line Items]
Total revenues			40,831			95,612
Technical Solutions [Member] | U.S. Land [Member]
Disaggregation of Revenue [Line Items]
Total revenues			3,166			9,303
Technical Solutions [Member] | U.S. Offshore [Member]
Disaggregation of Revenue [Line Items]
Total revenues			23,611			55,144
Technical Solutions [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Total revenues			$ 14,053			$ 31,165