CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest income:
Loans	$ 582,784	$ 458,044
Investments	11,331	5,479
Cash and cash equivalents	43,483	1,515
Total interest income	637,598	465,038
Interest expense:
Deposits	183,531	49,537
Interest expense on short-term borrowings	3,018	2,875
Interest expense on long-term borrowings	45,981	37,594
Total interest expense	232,530	90,006
Net interest income	405,068	375,032
Less: provisions for credit losses	114,112	98,050
Net interest income after provisions for credit losses	290,956	276,982
Non-interest income:
Gains (losses) on sales of loans, net	(9)	9,881
Gains (losses) on securities, net	1,711	(3,580)
Gains (losses) on derivatives and hedging activities, net	0	(5)
Other income	20,009	15,629
Total non-interest income	21,711	21,925
Operating expenses:
Compensation and benefits	87,649	71,981
FDIC assessment fees	11,529	5,684
Other operating expenses	55,361	54,341
Total operating expenses	154,539	132,006
Acquired intangible assets amortization expense	2,272	733
Total non-interest expenses	156,811	132,739
Income before income tax expense	155,856	166,168
Income tax expense	37,338	37,356
Net income	118,518	128,812
Preferred stock dividends	4,063	1,275
Net income attributable to SLM Corporation common stock	$ 114,455	$ 127,537
Basic earnings per common share (in dollars per share)	$ 0.47	$ 0.46
Average common shares outstanding (in shares)	241,497	276,977
Diluted earnings per common share (in dollars per share)	$ 0.47	$ 0.45
Average common and common equivalent shares outstanding (in shares)	243,549	280,654
Declared dividends per common share (in dollars per share)	$ 0.11	$ 0.11