Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Assets
Cash and due from banks	$ 189,907	$ 170,657
Interest-bearing bank deposits	107,689	189,739
Cash and cash equivalents	297,596	360,396
Securities available for sale	1,366,641	1,367,960
Loans, net of unearned discounts and deferred fees, including $53,388 and $57,537 of loans covered by FDIC loss share agreements at December 31, 2017 and September 30, 2017, respectively, and $980,144 and $1,016,576 of loans at fair value under the fair value option at December 31, 2017 and September 30, 2017, respectively, and $5,757 and $7,456 of loans held for sale at December 31, 2017 and September 30, 2017, respectively	9,165,373	8,968,553
Allowance for loan and lease losses	(64,023)	(63,503)
Net loans	9,101,350	8,905,050
Premises and equipment, including $1,111 and $5,147 of property held for sale at December 31, 2017 and September 30, 2017, respectively	107,731	112,209
Accrued interest receivable	54,817	53,176
Other repossessed property, including $86 and $0 of property covered by FDIC loss share agreements at December 31, 2017 and September 30, 2017, respectively	10,486	8,985
Goodwill	739,023	739,023
Cash surrender value of life insurance policies	29,823	29,619
Net deferred tax assets	28,548	42,400
Other assets	70,566	71,193
Total assets	11,806,581	11,690,011
Deposits
Noninterest-bearing	1,932,080	1,856,126
Interest-bearing	7,092,105	7,121,487
Total deposits	9,024,185	8,977,613
Securities sold under agreements to repurchase	116,884	132,636
FHLB advances and other borrowings	721,009	643,214
Subordinated debentures and subordinated notes payable	108,343	108,302
Accrued expenses and other liabilities	68,287	73,246
Total liabilities	10,038,708	9,935,011
Stockholders’ equity
Common stock, $0.01 par value, authorized 500,000,000 shares; 58,896,189 shares issued and outstanding at December 31, 2017 and 58,834,066 shares issued and outstanding at September 30, 2017	588	588
Additional paid-in capital	1,314,723	1,314,039
Retained earnings	463,207	445,747
Accumulated other comprehensive (loss)	(10,645)	(5,374)
Total stockholders' equity	1,767,873	1,755,000
Total liabilities and stockholders' equity	$ 11,806,581	$ 11,690,011