XML 45 R39.htm IDEA: XBRL DOCUMENT

Loans Held for Investment - Student Loan Portfolio Average Balances (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	$ 24,141,470	$ 21,254,774	$ 23,870,559	$ 20,617,890
Private Education Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	$ 22,202,420	$ 19,295,318	$ 21,896,218	$ 18,908,929
Weighted Average Interest Rate	9.30%	9.16%	9.40%	9.01%
FFELP Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	$ 806,865	$ 877,279	$ 821,870	$ 898,208
Weighted Average Interest Rate	4.54%	4.65%	4.83%	4.47%
Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	$ 1,132,185	$ 1,082,177	$ 1,152,471	$ 810,753
Weighted Average Interest Rate	12.16%	11.03%	11.99%	10.82%