CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 2,043,789	$ 1,534,339
Available-for-sale investments at fair value (cost of $185,749 and $247,607, respectively)	178,145	244,088
Loans held for investment (net of allowance for losses of $295,277 and $251,475, respectively)	20,308,581	18,567,641
Restricted cash	114,659	101,836
Other interest-earning assets	28,385	21,586
Accrued interest receivable	1,161,161	967,482
Premises and equipment, net	101,335	89,748
Tax indemnification receivable	153,470	168,011
Other assets	99,651	84,853
Total assets	24,189,176	21,779,584
Liabilities
Deposits	16,745,957	15,505,383
Long-term borrowings	4,217,119	3,275,270
Income taxes payable, net	79,772	102,285
Upromise member accounts	230,228	243,080
Other liabilities	187,398	179,310
Total liabilities	21,460,474	19,305,328
Commitments and contingencies
Equity
Preferred stock, par value $0.20 per share, 20 million shares authorized: 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: 449.4 million and 443.5 million shares issued, respectively	89,882	88,693
Additional paid-in capital	1,260,201	1,222,277
Accumulated other comprehensive income (net of tax expense of $7,448 and $1,696, respectively)	23,216	2,748
Retained earnings	1,096,359	868,182
Total SLM Corporation stockholders’ equity before treasury stock	2,869,658	2,581,900
Less: Common stock held in treasury at cost: 14.0 million and 11.1 million shares, respectively	(140,956)	(107,644)
Total equity	2,728,702	2,474,256
Total liabilities and equity	$ 24,189,176	$ 21,779,584