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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | $ 183,615 | $ 173,438 | $ 210,256
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, amortization, accretion and other, net | 33,914 | 39,912 | 31,058
Stock-based compensation expense | 6,381 | 6,469 | 5,265
Provision (release) for credit losses | 500 | 21,750 | (1,650)
Loss (gain) on sale of investment securities | (14) | (15,028) | 9
Prepayment penalty on early extinguishment of debt | 13,788 | 13,809 | 0
Gain on early termination of long term borrowing hedge | (14,110) | 0 | 0
Impairment loss on premises and equipment | 944 | 6,431 | 0
Net realized (gain) loss on sales of premises, equipment and real estate owned | (593) | (31,990) | (12,484)
Decrease (increase) in accrued interest receivable | 3,163 | (4,942) | (1,562)
Decrease (increase) in federal and state income tax receivable | 1,831 | (5,708) | 1,804
Decrease (increase) in cash surrender value of bank owned life insurance | (5,514) | (5,673) | (5,822)
Decrease (increase) in other assets | 155,599 | (146,893) | (17,416)
Increase (decrease) in federal and state income tax liabilities | (15,781) | 890 | 3,043
Increase (decrease) in accrued expenses and other liabilities | (49,269) | 114,135 | 21,553
Net cash provided (used) by operating activities | 314,454 | 166,600 | 234,054
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Origination of loans and principal repayments, net | (556,274) | (902,481) | (452,334)
Loans purchased | (488,147) | (15,456) | 0
FHLB & FRB stock purchase | (296,073) | (435,200) | (532,600)
FHLB & FRB stock redeemed | 335,200 | 417,200 | 535,800
Available-for-sale securities purchased | (530,227) | (1,064,815) | (358,709)
Principal payments and maturities of available-for-sale securities | 646,532 | 493,402 | 224,118
Proceeds from sales of available-for-sale investment securities | 1,499 | 204,351 | 491
Principal payments and maturities of held-to-maturity securities | 332,001 | 356,532 | 178,147
Proceeds from sales of real estate owned | 3,340 | 5,022 | 8,659
Purchase of strategic investments | 0 | 0 | (5,000)
Net cash received (paid) in business combinations | (1,500) | (2,810) | 0
Proceeds from sales of premises and equipment | 3,376 | 55,213 | 15,585
Premises and equipment purchased and REO improvements | (29,472) | (31,937) | (35,530)
Net cash provided (used) by investing activities | (579,745) | (920,979) | (421,373)
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |  |
Net increase (decrease) in customer accounts | 1,762,488 | 1,788,860 | 603,846
Proceeds from borrowings | 7,400,000 | 10,880,000 | 13,315,000
Repayments of borrowings | (8,393,788) | (10,443,809) | (13,395,000)
Proceeds from the early termination of long term borrowing hedge | 14,110 | 0 | 0
Proceeds from stock-based awards | 339 | 144 | 740
Proceeds from issuance of preferred stock, net | 293,325 | 0 | 0
Dividends paid on common stock | (65,876) | (66,496) | (63,318)
Dividends paid on preferred stock | (6,378) | 0 | 0
Treasury stock purchased | (348,651) | (112,133) | (123,854)
Increase (decrease) in advance payments by borrowers for taxes and insurance | (2,446) | (8,368) | 413
Net cash provided (used) by financing activities | 653,123 | 2,038,198 | 337,827
Increase (decrease) in cash and cash equivalents | 387,832 | 1,283,819 | 150,508
Cash and cash equivalents at beginning of year | 1,702,977 | 419,158 | 268,650
Cash and cash equivalents at end of year | 2,090,809 | 1,702,977 | 419,158
Non-cash investing activities |  |  |
Real estate acquired through foreclosure | 221 | 1,765 | 1,839
Other personal property acquired through foreclosure | 0 | 359 | 205
Non-cash financing activities |  |  |
Stock issued upon exercise of warrants | 0 | 0 | 1,082
Preferred stock dividend payable | 3,656 | 0 |
Cash paid during the year for |  |  |
Interest | 71,845 | 146,675 | 194,277
Income taxes | $ 47,854 | $ 35,640 | $ 33,545

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