Segments and Geographic Information - Schedule of Segment Reporting Information, by Segment (Parenthetical) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Segment Reporting Information [Line Items]
Revenues	$ 6,476,900,000	$ 2,742,345,000	$ 10,157,666,000	$ 5,457,441,000
Gross profit	93,370,000	44,767,000	166,267,000	88,210,000
Accumulated impairment losses on goodwill	1,364,000		1,364,000		$ 1,364,000
Secured Lending
Segment Reporting Information [Line Items]
Revenues			0
Gross profit			0
Direct-to-Consumer
Segment Reporting Information [Line Items]
Revenues	1,588,934,000	569,005,000	2,452,829,000	1,057,112,000
Gross profit	71,550,000	25,033,000	123,205,000	48,486,000
Accumulated impairment losses on goodwill	1,400,000		1,400,000
Accumulated impairment losses on intangibles	1,300,000		1,300,000
Direct-to-Consumer | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ 41,200,000	$ 46,700,000	86,100,000	$ 67,100,000
Precious Metals | Secured Lending
Segment Reporting Information [Line Items]
Revenues			0
Gross profit			$ 0