Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Assets
Cash and due from banks	$ 168,119	$ 170,657
Interest-bearing bank deposits	130,577	189,739
Cash and cash equivalents	298,696	360,396
Securities available for sale	1,385,650	1,367,960
Loans, net of unearned discounts and deferred fees, including $42,627 and $57,537 of loans covered by a FDIC loss share agreement at September 30, 2018 and 2017, respectively, and $865,386 and $1,016,576 of loans at fair value under the fair value option at September 30, 2018 and 2017, respectively, and $5,456 and $7,456 of loans held for sale at September 30, 2018 and 2017, respectively	9,415,924	8,968,553
Allowance for loan and lease losses	(64,540)	(63,503)
Net loans	9,351,384	8,905,050
Premises and equipment, including $1,104 and $5,147 of property held for sale at September 30, 2018 and 2017, respectively	113,839	112,209
Accrued interest receivable	58,948	53,176
Other repossessed property, including $131 and $0 of property covered by FDIC loss share agreements at September 30, 2018 and 2017, respectively	23,074	8,985
Goodwill	739,023	739,023
Cash surrender value of life insurance policies	30,461	29,619
Net deferred tax assets	30,132	42,400
Other assets	85,601	71,193
Total assets	12,116,808	11,690,011
Deposits
Noninterest-bearing	1,842,704	1,856,126
Interest-bearing	7,890,795	7,121,487
Total deposits	9,733,499	8,977,613
Securities sold under agreements to repurchase	90,907	132,636
FHLB advances and other borrowings	275,000	643,214
Subordinated debentures and subordinated notes payable	108,468	108,302
Accrued expenses and other liabilities	68,383	73,246
Total liabilities	10,276,257	9,935,011
Stockholders’ equity
Common stock, $0.01 par value, authorized 500,000,000 shares; 58,917,147 shares issued and outstanding at September 30, 2018 and 58,834,066 shares issued and outstanding at September 30, 2017	589	588
Additional paid-in capital	1,318,457	1,314,039
Retained earnings	553,014	445,747
Accumulated other comprehensive (loss)	(31,509)	(5,374)
Total stockholders' equity	1,840,551	1,755,000
Total liabilities and stockholders' equity	$ 12,116,808	$ 11,690,011