Intangible Assets and Goodwill - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Sep. 27, 2025
Finite-Lived Intangible Assets [Line Items]
Intangible Assets	$ 459,381	$ 0
Accumulated Amortization	(23,645)
Net Balance	$ 435,736	$ 0
Trade names
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	8 years
Weighted Average Remaining Life (Years)	7 years 9 months 18 days
Intangible Assets	$ 112,400
Accumulated Amortization	(2,342)
Net Balance	$ 110,058
Customer relationships - streaming
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	2 years
Weighted Average Remaining Life (Years)	1 year 9 months 18 days
Intangible Assets	$ 145,600
Accumulated Amortization	(12,133)
Net Balance	$ 133,467
Customer relationships - advertising
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	2 years
Weighted Average Remaining Life (Years)	1 year 9 months 18 days
Intangible Assets	$ 19,800
Accumulated Amortization	(1,650)
Net Balance	$ 18,150
Capitalized internal use software
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	3 years
Weighted Average Remaining Life (Years)	1 year 10 months 24 days
Intangible Assets	$ 23,410
Accumulated Amortization	(2,177)
Net Balance	$ 21,233
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	5 years
Weighted Average Remaining Life (Years)	4 years 9 months 18 days
Intangible Assets	$ 155,000
Accumulated Amortization	(5,167)
Net Balance	$ 149,833
Software licenses
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	5 years
Weighted Average Remaining Life (Years)	2 years 10 months 24 days
Intangible Assets	$ 3,171
Accumulated Amortization	(176)
Net Balance	$ 2,995