BUSINESS SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment information:
Total revenues	$ 375,507	$ 188,757	$ 660,131	$ 371,367
Technical Services
Segment information:
Total revenues	356,103	176,119	622,452	348,760
Technical Services | Pressure Pumping
Segment information:
Total revenues	194,641	72,179	314,539	147,079
Technical Services | Downhole Tools
Segment information:
Total revenues	89,927	58,853	170,997	115,230
Technical Services | Coiled Tubing
Segment information:
Total revenues	36,315	20,399	63,165	35,167
Technical Services | Nitrogen
Segment information:
Total revenues	10,789	8,039	18,392	19,199
Technical Services | Snubbing
Segment information:
Total revenues	7,025	3,105	13,237	6,937
Technical Services | All other
Segment information:
Total revenues	17,406	13,544	42,122	25,148
Support Services
Segment information:
Total revenues	19,404	12,638	37,679	22,607
Support Services | Rental Tools
Segment information:
Total revenues	14,314	8,549	27,377	14,581
Support Services | All other
Segment information:
Total revenues	$ 5,090	$ 4,089	$ 10,302	$ 8,026