Forfeited Assets - Restricted for Qualifying Victims (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Forfeited Assets - Restricted for Qualifying Victims [Abstract]
Enhancement percentage for contributing causes of action	5.00%
Class 5 coefficient percentage	72.50%
Receivable from DOJ	$ 1,892
Forfeited Assets [Abstract]
Restricted cash (Note 4)	28	$ 0
Other assets (Note 5)	3,442	0
Accounts payable and accrued liabilities	(11)	0
Net assets in liquidation - restricted for Qualifying Victims	$ 3,459	$ 0

The percentage of class 5 coefficient.

No definition available.

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The percentage of enhancement for contributing the victims' causes of action.

No definition available.

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Data Type:	num:percentItemType
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No definition available.

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Amount of accounts payable and accrued liabilities related to forfeited assets.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of forfeited assets related to additional cash receivable.

No definition available.

Name:	wlt_ForfeitedAssetsAdditionalCashReceivable
Namespace Prefix:	wlt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of forfeited assets of restricted cash as of balance sheet date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Amount of forfeited assets related to other assets received as of balance sheet date.

No definition available.

Name:	wlt_ForfeitedAssetsRelatedToOtherAssets
Namespace Prefix:	wlt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

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Amount restricted for qualifying victims.

No definition available.

Name:	wlt_RestrictedForQualifyingVictims
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant