CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 3,851,608	$ 2,559,106
Investments [Abstract]
Available-for-sale investments	455,968	176,245
Other investments	85,500	55,554
Total investments	541,468	231,799
Loans held for investment (net of allowance for losses of $414,406 and $341,121, respectively)	24,716,664	22,270,919
Restricted cash	142,846	122,789
Other interest-earning assets	74,670	27,157
Accrued interest receivable	1,510,458	1,191,981
Premises and equipment, net	135,208	105,504
Income taxes receivable, net	108,743	41,570
Tax indemnification receivable	38,226	39,207
Other assets	40,324	48,141
Total assets	31,160,215	26,638,173
Liabilities
Deposits	22,628,677	18,943,158
Short-term borrowings	297,800	0
Long-term borrowings	4,601,888	4,284,304
Upromise member accounts	192,708	213,104
Other liabilities	256,010	224,951
Total liabilities	27,977,083	23,665,517
Commitments and contingencies
Equity
Series B: 4 million and 4 million shares issued, respectively, at stated value of $100 per share	400,000	400,000
Common stock, par value $0.20 per share, 1.125 billion shares authorized: 453.5 million and 449.9 million shares issued, respectively	90,707	89,972
Additional paid-in capital	1,301,628	1,274,635
Accumulated other comprehensive income (loss) (net of tax expense (benefit) of $(6,525) and $3,436, respectively)	(20,183)	10,623
Retained earnings	1,725,674	1,340,017
Total SLM Corporation stockholders’ equity before treasury stock	3,497,826	3,115,247
Less: Common stock held in treasury at cost: 31.3 million and 14.2 million shares, respectively	(314,694)	(142,591)
Total equity	3,183,132	2,972,656
Total liabilities and equity	$ 31,160,215	$ 26,638,173