PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment as of September 30, 2019 and 2018 consisted of the following:

(in thousands)	Estimated Useful Lives	September 30, 2019			September 30, 2018
Contract drilling services equipment	4 - 15 years	$	7,881,323		7,829,038
Tubulars	4 years	618,310			613,043
Real estate properties	10 - 45 years	72,507			68,888
Other	2 - 23 years	471,803			471,310
Construction in progress		117,761			163,968
		9,161,704			9,146,247
Accumulated depreciation		(4,659,620		)	(4,288,865		)
Property, plant and equipment, net		$	4,502,084		$	4,857,382