CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income before noncontrolling interest	$ 52,293	$ 44,917	$ 33,220
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	37,722	45,048	35,617
Stock compensation	11,123	10,393	486
Provision (recovery):
Loan and lease losses	29,432	10,589	4,605
Deferred taxes	6,530	(6,286)	(230)
Loans held for sale:
Originations	(1,691)	(685,934)	0
Proceeds from sales	17,621	685,934	0
Net change	952	0	0
Fair value adjustment of foreclosed real estate	29	18	0
Net realized (gain) loss:
Other assets	127	406	104
Foreclosed real estate or other assets	19	6	0
Available for sale securities, net	8,177	537	326
Held to maturity securities, net	0	(44)	0
Loans held for sale	(181)	0	0
Lease receivables and equipment	(526)	0	0
Net change:
Other assets	2,633	(23,408)	(1,968)
Accrued interest payable	1,933	1,405	603
Accrued expenses and other liabilities	(28,610)	30,806	11,237
Accrued interest receivable	2,745	(2,181)	(3,847)
Change in bank-owned life insurance value	(2,591)	(2,216)	(1,656)
Impairment of intangibles	18	10,248	0
Excess contingent consideration paid	0	(248)	0
Net cash provided by operating activities	137,755	119,990	78,497
Available for Sale securities:
Purchases	(626,575)	(848,613)	(603,995)
Proceeds from sales	596,758	457,306	285,508
Proceeds from maturities and principal repayments	162,118	126,420	116,333
Held to Maturity:
Purchases	0	(932)	(298,869)
Proceeds from sales	0	5,870	0
Proceeds from maturities and principal repayments	40,525	45,615	20,465
Bank Owned Life Insurance:
Purchases	0	(25,000)	(10,000)
Loans and leases:
Purchases	(165,670)	(141,403)	0
Proceeds from sales	22,611	4,720	89
Net change	(493,381)	(274,840)	(217,985)
Proceeds from sales of foreclosed real estate or other assets	244	200	0
Federal Home Loan Bank stock:
Purchases	(961,124)	(715,891)	(860,902)
Redemption	998,880	702,280	837,800
Rental Equipment:
Purchases	(1,848)	0	0
Proceeds from sales	2,362	0	0
Premises and equipment:
Purchases	(8,542)	(6,798)	(6,979)
Proceeds from sales	0	58	55
Rental equipment operating lease originations	(15,000)	0	0
Cash paid for acquisitions	(6)	(29,425)	0
Cash received upon acquisitions	58,858	0	0
Net cash used in investing activities	(389,790)	(700,433)	(738,480)
Cash flows from financing activities:
Checking, savings, and money market deposits	7	319,524	737,727
Time deposits	(143,096)	(2,355)	34,821
Wholesale deposits	229,982	476,173	0
FHLB and other borrowings	(415,000)	308,000	100,000
Federal funds	(565,000)	(5,000)	452,000
Securities sold under agreements to repurchase	1,222	(565)	(969)
Short-term borrowings	(11,642)	0	0
Distributions to non-controlling interest	(266)	0	0
Principal payments: Other liabilities	(4,888)	0	0
Principal payments: Capital lease obligations	(62)	(80)	(126)
Cash dividends paid	(5,736)	(4,839)	(4,389)
Purchase of shares by ESOP	1,606	1,174	0
Issuance of restricted stock	4	12	0
Proceeds from exercise of stock options & issuance of common stock	148	650	13,858
Shares repurchased for tax withholdings on stock compensation	(2,598)	(470)	0
Contingent consideration - cash paid	0	(17,253)	0
Proceeds from long term debt	0	0	75,000
Redemption of long term debt	(258)	0	0
Payment of debt issuance costs	0	0	(1,767)
Payment of debt extinguishment costs	0	(772)	0
Net cash (used in) provided by financing activities	(915,577)	1,074,199	1,406,155
Effect of exchange rate changes on cash	3	0	0
Net change in cash and cash equivalents	(1,167,609)	493,756	746,172
Cash and cash equivalents at beginning of year	1,267,586	773,830	27,658
Cash and cash equivalents at end of year	99,977	1,267,586	773,830
Supplemental disclosure of cash flow information
Interest	33,499	16,278	3,488
Income taxes	8,946	20,058	5,898
Franchise taxes	160	187	98
Other taxes	206	290	79
Transfers
Loans and leases to foreclosed real estate or other assets	30,451	440	76
Loans and leases to rental equipment	9	0	0
Rental equipment to loans and leases	993	0	0
Loans and leases to held for sale	15,068	0	0
Contingent consideration - equity	0	24,142	0
Stock issued for acquisitions	295,767	37,296	0
Purchase/Sales of investment securities accrued, not settled Available for sale purchases	1,430	0	0
Securities transferred from held-to-maturity to available-for-sale	$ 346,771	$ 0	$ 0