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PROPERTY, PLANT AND EQUIPMENT (Tables)
 3 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment as of December 31, 2024 and September 30, 2024 consisted of the following:
(in thousands)Estimated Useful LivesDecember 31, 2024September 30, 2024
Drilling services equipment
4 - 15 years
$6,713,200 $6,671,975 
Tubulars
4 years
539,876 552,773 
Real estate properties
10 - 45 years
49,061 48,617 
Other
2 - 23 years
465,604 460,857 
Construction in progress1
132,367 106,183 
7,900,108 7,840,405 
Accumulated depreciation(4,890,748)(4,824,128)
Property, plant and equipment, net$3,009,360 $3,016,277 
(1)Included in construction in progress are costs for projects in progress to upgrade or refurbish certain rigs in our existing fleet. Additionally, we include other advances for capital maintenance purchase-orders that are open/in process. As these various projects are completed, the costs are then classified to their appropriate useful life category.