CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Interest income:
Loans	$ 598,767	$ 596,607
Investments	14,746	14,507
Cash and cash equivalents	42,577	52,444
Total interest income	656,090	663,558
Interest expense:
Deposits	204,139	220,445
Interest expense on short-term borrowings	3,401	3,562
Interest expense on long-term borrowings	73,580	52,535
Total interest expense	281,120	276,542
Net interest income	374,970	387,016
Less: provisions for credit losses	23,286	12,041
Net interest income after provisions for credit losses	351,684	374,975
Non-interest income:
Gains on sales of loans, net	187,735	143,039
Gains (losses) on securities, net	(10,378)	2,118
Other income	28,687	29,001
Total non-interest income	206,044	174,158
Operating expenses:
Compensation and benefits	90,830	96,476
FDIC assessment fees	12,403	13,312
Other operating expenses	50,355	50,645
Total operating expenses	153,588	160,433
Acquired intangible assets impairment and amortization expense	1,021	1,215
Total non-interest expenses	154,609	161,648
Income before income tax expense	403,119	387,485
Income tax expense	98,579	97,554
Net income	304,540	289,931
Preferred stock dividends	3,956	4,653
Net income attributable to SLM Corporation common stock	$ 300,584	$ 285,278
Basic earnings per common share (in dollars per share)	$ 1.43	$ 1.29
Average common shares outstanding (in shares)	210,682	220,416
Diluted earnings per common share (in dollars per share)	$ 1.40	$ 1.27
Average common and common equivalent shares outstanding (in shares)	214,986	223,845
Declared dividends per common share (in dollars per share)	$ 0.13	$ 0.11