Debt and Other Financing Arrangements - WTI Loan Facility (Details) - USD ($)			1 Months Ended	2 Months Ended	3 Months Ended		9 Months Ended			11 Months Ended	60 Months Ended
	Mar. 31, 2025	Sep. 11, 2024	Sep. 30, 2024	Sep. 11, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Jun. 30, 2025	Sep. 30, 2024	Aug. 15, 2025	Sep. 11, 2029	Jul. 31, 2025
Debt Instrument [Line Items]
Extension period (in days)												90 days
Accrued PIK Interest					$ 201,000		$ 201,000
Unamortized debt issuance cost					47,000		47,000
Amortization of debt financing costs							1,717,000		$ 55,000
Interest expense					$ 95,000	$ 136,000	$ 762,000		136,000
Private Placement
Debt Instrument [Line Items]
Sale of stock, shares issued in transaction (in shares)		750,000
Private Placement \| Maximum
Debt Instrument [Line Items]
Put option, exercise period		10 years		10 years
Private Placement \| Minimum
Debt Instrument [Line Items]
Put option, exercise period		5 years		5 years
Private Placement - Shares Subject to Vesting
Debt Instrument [Line Items]
Number of unvested shares (in shares)		125,000		125,000
Redeemable Common Stock
Debt Instrument [Line Items]
Shares forfeited during the period (in shares)	62,500
Stock issued during period, price per share (in dollars per share)		$ 7.66		$ 7.66
Issuance of convertible preferred stock				$ 4,308,000		4,308,000			4,308,000
Redeemable Common Stock \| Forecast
Debt Instrument [Line Items]
Accretion to redemption value, per share (in dollars per share)											$ 8.40
Term Loan \| WTI Loan Facility
Debt Instrument [Line Items]
Term loan facility		$ 15,000,000		15,000,000
Minimum revenue requirement								$ 48,600,000
Total cash burn, maximum										$ 600,000
Net proceeds from equity financing, minimum										$ 6,000,000
Extension period (in days)												90 days
Interest rate					12.00%		12.00%
Accrued PIK Interest					$ 201,000		$ 201,000
Amortization of debt financing costs					$ 293,000	$ 43,000	$ 773,000		$ 43,000
Term Loan \| WTI Loan Facility \| First Tranche Commitment
Debt Instrument [Line Items]
Term loan facility		10,000,000		10,000,000
Proceeds from long-term borrowings			$ 7,500,000
Remaining borrowing capacity	$ 2,500,000
Term Loan \| WTI Loan Facility \| First Tranche Commitment Extension
Debt Instrument [Line Items]
Term loan facility		2,500,000		2,500,000
Term Loan \| WTI Loan Facility \| Second Tranche Commitment
Debt Instrument [Line Items]
Term loan facility		$ 5,000,000		$ 5,000,000

Owlet, Inc. 10-Q