v3.25.3

Debt - Narrative (Details) - USD ($)		1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 15, 2029	Feb. 28, 2025	Oct. 31, 2019	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Facility term			5 years
Notes payable				$ 0		$ 0
Maximum borrowing capacity			$ 100,000,000.0
Interest expense				1,400,000	$ 1,500,000	4,100,000	$ 4,200,000
Fixed Rate Senior Notes due 2029 \| Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount				$ 65,000,000		$ 65,000,000		$ 65,000,000
Facility term						5 years		5 years
Interest rate				8.75%		8.75%		8.75%
Redemption price, percentage						100.00%
Fixed Rate Senior Notes due 2029 \| Senior Notes \| Forecast
Line of Credit Facility [Line Items]
Redemption price, percentage	100.00%
Variable Rate Senior Notes Due 2026 \| Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 20,000,000
Variable market rates		6.00%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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GREEN DOT CORP 10-Q