CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 35,282	$ 33,418
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization (accretion) of fees, discounts, premiums and intangible assets, net	536	6,890
Cash received from FDIC under loss share	4,566	6,761
Depreciation	2,300	1,875
Stock option compensation expense	300	300
Provision for loan losses	3,600	11,210
Loss on real estate held for sale, net	1,193	19,859
Decrease (increase) in accrued interest receivable	1,058	(1,391)
Increase in FDIC loss share receivable	0	(1,356)
Increase (decrease) in income taxes payable	(3,038)	18,813
Decrease in other assets	30,191	3,868
Increase (decrease) in accrued expenses and other liabilities	(15,437)	2,021
Net cash provided by operating activities	60,551	102,268
CASH FLOWS FROM INVESTING ACTIVITIES
Net principal collections (loan originations)	187,382	203,949
FHLB stock redemptions	1,382	0
Available-for-sale securities purchased	(261,966)	(581,337)
Principal payments and maturities of available-for-sale securities	31,404	276,982
Available-for-sale securities sold	43,899	3,500
Held-to-maturity securities purchased	(264,781)	0
Principal payments and maturities of available-for-sale securities	50,522	4,845
Net cash received from acquisition	202,308	50,451
Proceeds from sales of real estate held for sale	30,145	28,801
Proceeds from sales of covered REO	3,043	11,881
Premises and equipment purchased and REO improvements	(12,185)	(9,308)
Net cash provided (used) by investing activities	11,153	(10,236)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in customer accounts	(77,942)	73,982
Net decrease in borrowings	(22,471)	(18,873)
Proceeds from exercise of common stock options	63	2
Dividends paid on common stock	(17,250)	(8,517)
Treasury stock purchased	(44,747)	(20,311)
Decrease in advance payments by borrowers for taxes and insurance	(23,489)	(24,406)
Net cash provided (used) by financing activities	(185,836)	1,877
Increase (decrease) in cash and cash equivalents	(114,132)	93,909
Cash and cash equivalents at beginning of period	751,430	816,002
Cash and cash equivalents at end of period	637,298	909,911
Non-cash investing activities
Non-covered real estate acquired through foreclosure	22,762	42,774
Covered real estate acquired through foreclosure	3,096	5,472
Cash paid during the period for
Interest	37,457	53,776
Income taxes	0	0
The following summarizes the non-cash activities related to acquisitions
Fair value of assets acquired	810,766	124,594
Fair value of liabilities assumed	(766,871)	(154,493)
Net fair value of assets (liabilities)	$ 43,895	$ (29,899)