Debt Instrument, Issuance Price, Percentage

No definition available.

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- Definition

Estimated weighted average life of student loans.

+ References

No definition available.

+ Details

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- Definition

Loans Pledged As Collateral, Capitalized Interest

+ References

No definition available.

+ Details

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- Definition

Loans Pledged As Collateral, Principal Amount

+ References

No definition available.

+ Details

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- Definition

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

+ References

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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

This is the principal amount outstanding for loans which are in the process of being securitized as of the date of the statement of financial position (across all types of loans).

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Borrowings - Long Term Borrowings Narrative (Details) - USD ($)		12 Months Ended
	Nov. 01, 2021	Dec. 31, 2024	Dec. 31, 2023	Feb. 18, 2025	Jan. 31, 2025	Nov. 30, 2024	Aug. 31, 2024	May 31, 2024	Aug. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Oct. 29, 2020
Debt Instrument [Line Items]
Notes Issued		$ 2,216,000,000	$ 1,147,000,000
Loan Principal		2,150,266,000	1,001,058,000
Capitalized Interest		$ 177,337,000	$ 68,143,000
Estimated weighted average life of student loans		5 years 7 months 6 days	5 years
Senior Unsecured Notes Due October 29, 2025 \| Unsecured Debt
Debt Instrument [Line Items]
Notes Issued		$ 499,000,000										$ 500,000,000
Interest rate												4.20%
Senior Unsecured Notes Due October 29, 2025 \| Unsecured Debt \| Subsequent Event
Debt Instrument [Line Items]
Interest rate				4.20%
Senior Unsecured Notes Due November 2, 2026 \| Unsecured Debt
Debt Instrument [Line Items]
Notes Issued	$ 500,000,000	496,000,000
Interest rate	3.125%
Issuance price	99.43%
2024-C ABS Transaction
Debt Instrument [Line Items]
Notes Issued								$ 668,000,000
Loan Principal		646,550,000
Capitalized Interest		52,968,000
2024-E ABS Transaction
Debt Instrument [Line Items]
Notes Issued							$ 868,000,000
Loan Principal		841,355,000
Capitalized Interest		69,238,000
2024-F ABS Transaction
Debt Instrument [Line Items]
Notes Issued						$ 680,000,000
Loan Principal		662,361,000
Capitalized Interest		55,131,000
2023-A ABS Transaction
Debt Instrument [Line Items]
Notes Issued										$ 579,000,000
Loan Principal			$ 484,551,000
Capitalized Interest			32,856,000
2023-C ABS Transaction
Debt Instrument [Line Items]
Notes Issued									$ 568,000,000
Loan Principal			516,507,000
Capitalized Interest			$ 35,287,000
ABS Transactions
Debt Instrument [Line Items]
Private education loan term accounted for as a secured financing											$ 10,380,000,000
Private Education Loans
Debt Instrument [Line Items]
Private education loan term accounted for as a secured financing		3,740,000,000
Loan Principal		3,630,000,000
Capitalized Interest		$ 107,000,000
Senior Unsecured Notes Due February XX 2028 Member \| Unsecured Debt \| Subsequent Event
Debt Instrument [Line Items]
Notes Issued					$ 500,000,000
Interest rate					6.50%