Revenue (Disaggregation Of Revenues, By Type) (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
Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	18,339	67,237		109,685
Well Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	27,589	98,655		162,050
Drilling Products and Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			67,349			171,343
Production Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			43,402			118,866
Technical Solutions [Member]
Disaggregation of Revenue [Line Items]
Total revenues			40,831			95,612
Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	19,234	79,787	59,919	123,466		163,722
Services [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	2,005	9,592		15,856
Services [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	17,229	70,195		107,610
Services [Member] | Drilling Products and Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			13,012			27,589
Services [Member] | Production Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			28,759			89,224
Services [Member] | Technical Solutions [Member]
Disaggregation of Revenue [Line Items]
Total revenues			18,148			46,909
Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	14,434	53,238	51,758	84,552		141,085
Rentals [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	14,082	47,895		76,488
Rentals [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	352	5,343		8,064
Rentals [Member] | Drilling Products and Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			44,573			122,402
Rentals [Member] | Production Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			4,959			10,083
Rentals [Member] | Technical Solutions [Member]
Disaggregation of Revenue [Line Items]
Total revenues			2,226			8,600
Product Sales [Member]
Disaggregation of Revenue [Line Items]
Total revenues	12,260	32,867	39,905	63,717		81,014
Product Sales [Member] | Rentals [Member]
Disaggregation of Revenue [Line Items]
Total revenues	2,252	9,750		17,341
Product Sales [Member] | Well Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 10,008	$ 23,117		$ 46,376
Product Sales [Member] | Drilling Products and Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			9,764			21,352
Product Sales [Member] | Production Services [Member]
Disaggregation of Revenue [Line Items]
Total revenues			9,684			19,559
Product Sales [Member] | Technical Solutions [Member]
Disaggregation of Revenue [Line Items]
Total revenues			$ 20,457			$ 40,103