Criteria for loans to be considered as nonperforming.

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- Definition

Financing, Percentage of FFELP Loans Insured and Guaranteed

+ References

No definition available.

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- Definition

Financing Receivable And Off-Balance Sheet, Excluding Accrued Interest, Before Allowance For Credit Loss, Loan Sold

+ References

No definition available.

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- Definition

Financing Receivable, Increments In Which Forbearance Is Granted

+ References

No definition available.

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- Definition

Financing Receivable, Modifications, Number Of Term Changes

+ References

No definition available.

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- Definition

Financing Receivable, Month Limit On Forbearance Granted, Life Of Loan

+ References

No definition available.

+ Details

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- Definition

Financing Receivable, Number Of Monthly Payments Required Between Forbearance Grants

+ References

No definition available.

+ Details

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- Definition

Financing Receivable, Period Of Interest Rate Reduction, Financial Difficulty Status

+ References

No definition available.

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- Definition

Financing Receivable, Temporary Interest Rate Reduction, Financial Difficulty Status

+ References

No definition available.

+ Details

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- Definition

Financing Receivable, Threshold Period For Payment Default

+ References

No definition available.

+ Details

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- Definition

Fixed-Pay Loan, Monthly Payment Amount, Below Monthly Accrued Interest

+ References

No definition available.

+ Details

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- Definition

Period of Loans Past Due That Have Accrued Interest

+ References

No definition available.

+ Details

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- Definition

Threshold Period Past Due For Write-off Of Financing Receivable

+ References

No definition available.

+ Details

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- Definition

Tier One of Government Guarantee

+ References

No definition available.

+ Details

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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.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in allowance for credit loss on financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from sale of loan. Excludes net investment in lease.

+ References

+ Details

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Allowance for Credit Losses - Narrative (Details)	3 Months Ended		6 Months Ended
Allowance for Credit Losses - Narrative (Details)	Jun. 30, 2023 USD ($) termChange	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) payment termChange	Jun. 30, 2022 USD ($)	Jul. 01, 2006
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable allowance period increase			$ 3,000,000
Negative provisions for loan sale	$ 136,531,000	$ 115,852,000	$ 136,531,000	$ 121,099,000
Interest rate offered to borrowers facing financial difficulty, period			2 years
Number of term changes \| termChange	2		2
Criteria for loans to be considered as nonperforming (greater than)			90 days
Tier 1 of government guarantee (at least)	97.00%		97.00%		97.00%
Maximum amount of forbearance granted			12 months
Number of monthly payments required by a borrower between successive grants of forbearance \| payment			12
Threshold period for payment default			60 days
Period of loans past due that have accrued interest			90 days
Monthly payment that is smaller than the interest accrued on the loan in that month			$ 25
Private Education Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Negative provisions for loan sale	$ 136,531,000	115,852,000	136,531,000	121,099,000
Loans sold			$ 2,100,000,000	2,240,000,000
Threshold period when delinquent loans are written off			120 days
FFELP Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Negative provisions for loan sale	$ 0	$ 0	$ 0	$ 0
Percentage of FFELP loans insured and guaranteed (at least)			97.00%
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate offered to borrowers facing financial difficulty	4.00%		4.00%
Increments in which forbearance is granted			2 months
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increments in which forbearance is granted			1 month