INCOME TAXES - Additional Information (Detail) - USD ($)		1 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Jul. 31, 2019	Jul. 31, 2018	Dec. 15, 2017
Income Taxes [Line Items]
Net deferred tax assets			$ 46,564,000	$ 52,275,000
Change in valuation allowance			12,700,000	(333,400,000)
Statutory federal income tax rate	21.00%	35.00%
Reduction in the valuation allowance	$ 280,400,000
Interest expense related to uncertain tax positions	0
Provision for income tax expense (benefit)	280,400,000
Unrecognized tax benefits, including interest, related to federal, state and foreign taxes			2,400,000	1,600,000
Increase(decrease) in liabilities for interest expense related to uncertain tax positions			200,000	100,000
Expected any unrecognized tax benefits to reverse in the next twelve months			0
Parent Company
Income Taxes [Line Items]
Provision for income tax expense (benefit)	305,900,000
IWCO
Income Taxes [Line Items]
Provision for income tax expense (benefit)	$ (25,500,000)
Deferred tax liability					$ 77,000,000
Federal
Income Taxes [Line Items]
Operating loss carryforwards			2,100,000,000
State
Income Taxes [Line Items]
Operating loss carryforwards			160,000,000
Foreign
Income Taxes [Line Items]
Operating loss carryforwards			72,600,000
Foreign net operating loss carryforward with indefinite period			56,700,000
Federal and State
Income Taxes [Line Items]
Net capital loss carryforwards			19,400,000
Other Assets
Income Taxes [Line Items]
Net deferred tax assets			1,000,000	1,600,000
Other Long -term Liabilities
Income Taxes [Line Items]
Deferred tax liability			$ 100,000	$ 100,000