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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Operating activities |  |
Net income | $ 854,248 | $ 447,990
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |
Provisions for credit losses | (17,648) | 409,505
Income tax expense | 276,091 | 146,006
Amortization of brokered deposit placement fee | 11,932 | 14,881
Amortization of Secured Borrowing Facility upfront fee | 1,845 | 2,159
Amortization of deferred loan origination costs and loan premium/(discounts), net | 11,851 | 20,127
Net amortization of discount on investments | 5,902 | 4,255
Unrealized gain on investments | 0 | (2,100)
Reduction (increase) in tax indemnification receivable | 6,006 | (698)
Depreciation of premises and equipment | 11,445 | 11,386
Stock-based compensation expense | 24,254 | 30,253
Unrealized (gains) losses on derivatives and hedging activities, net | 21,434 | (21,862)
Gains on sales of loans, net | (402,780) | (238,562)
Gain on sale of Upromise subsidiary, net | 0 | (11,331)
Other adjustments to net income, net | (29,229) | 5,389
Changes in operating assets and liabilities: |  |
Increase in accrued interest receivable | (556,143) | (668,103)
Increase in non-marketable securities | (9,415) | 0
Decrease (increase) in other interest-earning assets | 30,983 | (1,244)
Increase in other assets | (110,841) | (46,194)
Decrease in income taxes payable, net | (230,072) | (243,851)
Increase in accrued interest payable | 4,153 | 38
Decrease in Upromise member accounts due to sale | 0 | (193,840)
Increase in other liabilities | 860 | 126,645
Total adjustments | (949,372) | (657,141)
Total net cash used in operating activities | (95,124) | (209,151)
Investing activities |  |
Loans acquired and originated | (4,744,212) | (4,736,304)
Net proceeds from sales of loans held for investment | 3,436,075 | 3,875,984
Proceeds from claim payments | 14,653 | 22,563
Net decrease in loans held for investment | 2,835,850 | 2,954,660
Purchases of available-for-sale securities | (1,159,667) | (1,897,511)
Proceeds from sales and maturities of available-for-sale securities | 799,193 | 376,580
Proceeds from sale of Upromise subsidiary, net | 0 | 16,922
Total net cash provided by investing activities | 1,181,892 | 612,894
Financing activities |  |
Brokered deposit placement fee | (11,182) | (4,810)
Net decrease in certificates of deposit | (1,690,990) | (1,802,541)
Net (decrease) increase in other deposits | (12,172) | 501,843
Borrowings collateralized by loans in securitization trusts - issued | 1,053,633 | 1,337,543
Borrowings collateralized by loans in securitization trusts - repaid | (830,026) | (749,300)
Issuance costs for unsecured debt offering | (325) | 0
Repayment of borrowings under Secured Borrowing Facility | 0 | (289,230)
Fees paid on Secured Borrowing Facility | (2,846) | (3,251)
Common stock dividends paid | (29,104) | (35,097)
Preferred stock dividends paid | (3,559) | (8,000)
Common stock repurchased | (1,276,681) | (558,167)
Total net cash used in financing activities | (2,803,252) | (1,611,010)
Net decrease in cash, cash equivalents and restricted cash | (1,716,484) | (1,207,267)
Cash, cash equivalents and restricted cash at beginning of period | 4,609,709 | 5,720,760
Cash, cash equivalents and restricted cash at end of period | 2,893,225 | 4,513,493
Cash disbursements made for: |  |
Interest | 261,205 | 402,151
Income taxes paid | 237,882 | 248,121
Income taxes refunded | (7,610) | (4,024)
Reconciliation of the Consolidated Statements of Cash Flows to the Consolidated Balance Sheets: |  |
Cash and cash equivalents | 2,717,752 | 4,351,045
Restricted cash | 175,473 | 162,448
Total cash, cash equivalents and restricted cash | $ 2,893,225 | $ 4,513,493

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