Additional Proceeds from Sale of Debt Securities, Available-for-sale

No definition available.

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- Definition

Estimated weighted average life of student loans.

+ References

No definition available.

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- Definition

Lendable value of collateral

+ References

No definition available.

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- Definition

Loans Pledged As Collateral, Capitalized Interest

+ References

No definition available.

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- Definition

Loans Pledged As Collateral, Principal Amount

+ References

No definition available.

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- Definition

Loans Securitized or Asset-Backed Financing Arrangement, Ownership Interest, Percentage

+ References

No definition available.

+ Details

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- Definition

Ownership Interest Percentage

+ References

No definition available.

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- Definition

Uncommitted Federal Funds

+ References

No definition available.

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- Definition

Vertical Risk Retention, Percentage

+ References

No definition available.

+ Details

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- Definition

Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Period Type:	duration

- 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.

+ References

No definition available.

+ Details

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- Definition

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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- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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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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Balance Type:	credit
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- Definition

The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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- Definition

Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Borrowings - Additional Information (Details) - USD ($)					1 Months Ended	6 Months Ended	12 Months Ended
Borrowings - Additional Information (Details) - USD ($)	May 27, 2021	May 19, 2021	Feb. 17, 2021	Feb. 09, 2021	Mar. 31, 2020	Jun. 30, 2021	Dec. 31, 2020	May 31, 2021
Line of Credit Facility [Line Items]
Short-term borrowings						$ 199,379,000	$ 0
Estimated weighted average life of student loans						4 years 6 months	5 years 4 months 24 days
Vertical risk retention interest					5.00%	5.00%
Unsecured offering issued						$ 531,000,000	$ 1,343,000,000
Uncommitted federal funds						125,000,000
Lendable value of collateral						2,800,000,000	3,800,000,000
Unsecured borrowings
Line of Credit Facility [Line Items]
Short-term borrowings						199,379,000	0
SMB Private Education Loan Trust 2021-B
Line of Credit Facility [Line Items]
Principal Amount Outstanding on Loans Held-for-sale or Securitization or Asset-backed Financing Arrangement		$ 531,000,000
Loans sold to third parties		$ 531,000,000
Ownership interest percentage		100.00%
Proceeds from Issuance of Unsecured Debt		$ 529,000,000
Estimated weighted average life of student loans		4 years 3 months 3 days
Loans pledged as collateral						541,000,000
Principal amount of collateral						504,000,000
Capitalized interest						37,000,000
Unsecured offering issued								$ 531,000,000
SMB Private Education Loan Trust 2021-B \| London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.77%
2021-A
Line of Credit Facility [Line Items]
Vertical risk retention interest				5.00%
2021-A \| Student Loan
Line of Credit Facility [Line Items]
Private education loans sold				$ 2,500,000,000
Additional net proceeds from sales of loans held for investment, capitalized interest				130,000,000
Gain on sale				$ 18,000,000
2021-C
Line of Credit Facility [Line Items]
Vertical risk retention interest	5.00%
2021-C \| Student Loan
Line of Credit Facility [Line Items]
Private education loans sold	$ 505,000,000
Additional net proceeds from sales of loans held for investment, capitalized interest	27,000,000
Gain on sale	$ 4,000,000
Commercial Paper \| ABCP borrowings
Line of Credit Facility [Line Items]
Private asset backed commercial paper education loan funding facility			$ 2,000,000,000
Ownership interest percentage in residual interest in ABCP facility			100.00%
Short-term borrowings						$ 0	$ 0