Litigation (Details)	Feb. 01, 2024 borrowerDefenseApplication	Jan. 25, 2024 borrowerDefenseApplication claim	Jun. 22, 2022 educational_institution	Dec. 31, 2021 borrowerDefenseApplication	Apr. 20, 2021 borrowerDefenseApplication
Capella University
Other Commitments [Line Items]
Number of borrower defense applications submitted (more than)					1,000
Number of borrower defense applications submitted received for repayment (approximately)					500
Number of different institutions impacted by litigation (approximately) | educational_institution			150
Number of borrower defense applications noted as pending				1,000
Subsequent Event
Other Commitments [Line Items]
Number of borrower defense applications sent in weekly batches		500
Subsequent Event | Capella University
Other Commitments [Line Items]
Number of borrower defense applications submitted received for repayment (approximately)		6,700
Subsequent Event | Strayer University
Other Commitments [Line Items]
Number of borrower defense applications submitted received for repayment (approximately)	1,900
Number of borrower defense claims received | claim		500