Emergence from Voluntary Reorganization under Chapter 11 / Fresh Start Accounting Fresh Start Accounting Adjustments - Fair Value Adjustment - Property and Equipment (Details) - USD ($) $ in Thousands		May 31, 2020	May 30, 2020
Fresh-Start Adjustment [Line Items]
Drilling and equipment		$ 178,318	$ 1,010,612
Vehicles		12,722	41,283
Buildings and improvements		2,877
Office equipment		488	12,231
Land		1,566	1,959
Property and equipment, at cost		195,971	1,082,704
Less accumulated depreciation		0	(655,512)
Net property and equipment		$ 195,971	427,192
Fresh Start Accounting Adjustments [Member]
Fresh-Start Adjustment [Line Items]
Drilling and equipment			(832,294)
Vehicles			(28,561)
Buildings and improvements			(13,742)
Office equipment			(11,743)
Land			(393)
Property and equipment, at cost	[1]		(886,733)
Less accumulated depreciation	[1]		655,512
Net property and equipment			(231,221)
Building and improvements
Fresh-Start Adjustment [Line Items]
Buildings and improvements			$ 16,619

[1] Represents the following fair value adjustments to property and equipment: Predecessor
Historical ValueFair Value
AdjustmentSuccessor
Fair ValueDrilling rigs and equipment$1,010,612 $(832,294)$178,318 Vehicles41,283 (28,561)12,722 Building and improvements16,619 (13,742)2,877 Office equipment12,231 (11,743)488 Land1,959 (393)1,566 $1,082,704 $(886,733)$195,971 Less: Accumulated Depreciation(655,512)655,512 — $427,192 $(231,221)$195,971