Net Change in Assets and Liabilities - Details of Change in Carrying Value of Assets and Liabilities, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Restricted for Qualifying Victims [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments		$ 0
Restricted cash		35
Other assets		(46)
Total assets		(11)
Accounts payable and accrued liabilities		0
Accrued liquidation costs		(26)
Total liabilities		(26)
Change in carrying value of assets and liabilities, net	$ 0	0
Change in carrying value of assets and liabilities, net	0	15
Restricted for Qualifying Victims [Member] | Cash Activities [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments		0
Restricted cash		35
Other assets		(61)
Total assets		(26)
Accounts payable and accrued liabilities		0
Accrued liquidation costs		(26)
Total liabilities		(26)
Change in carrying value of assets and liabilities, net		0
Restricted for Qualifying Victims [Member] | Remeasurement [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments		0
Restricted cash		0
Other assets		15
Total assets		15
Accounts payable and accrued liabilities		0
Accrued liquidation costs		0
Total liabilities		0
Change in carrying value of assets and liabilities, net		15
All Interestholders [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments	(733)	2,392
Restricted cash	2	0
Other assets	(125)	96
Total assets	(856)	2,488
Accounts payable and accrued liabilities	(1)	258
Accrued liquidation costs	(1,558)	(1,414)
Total liabilities	(1,559)	(1,156)
Change in carrying value of assets and liabilities, net	703	3,644
Change in carrying value of assets and liabilities, net	0	0
All Interestholders [Member] | Cash Activities [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments	(733)	2,392
Restricted cash	2	0
Other assets	(551)	(3,827)
Total assets	(1,282)	(1,435)
Accounts payable and accrued liabilities	0	(1)
Accrued liquidation costs	(1,558)	(1,514)
Total liabilities	(1,558)	(1,515)
Change in carrying value of assets and liabilities, net	276	80
All Interestholders [Member] | Remeasurement [Member]
Net Change in Assets and Liabilities [Abstract]
Cash, cash equivalents and short-term investments	0	0
Restricted cash	0	0
Other assets	426	3,923
Total assets	426	3,923
Accounts payable and accrued liabilities	(1)	259
Accrued liquidation costs	0	100
Total liabilities	(1)	359
Change in carrying value of assets and liabilities, net	$ 427	$ 3,564