Great Southern Bancorp, Inc. - Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Activities
Net income	$ 30,269	$ 23,865	$ 65,047
Proceeds from sales of loans held for sale	191,333	179,472	194,599
Originations of loans held for sale	(195,081)	(189,269)	(196,726)
Items not requiring (providing) cash
Depreciation	5,099	3,571	2,723
Amortization	4,361	2,087	756
Compensation expense for stock option grants	486	461	337
Provision for loan losses	35,336	35,630	35,800
Net gains on loan sales	(3,524)	(3,765)	(2,889)
Net realized (gains) losses and impairment on available-for-sale securities	132	(8,787)	1,521
(Gain) loss on sale of premises and equipment	202	(44)	(47)
Loss on sale/write-down of foreclosed assets	13,712	588	2,855
Gain on purchase of additional business units	(16,486)		(89,795)
Amortization (accretion) of deferred income, premiums and discounts	48,627	15,063	(6,626)
(Gain) loss on derivative interest rate products	10		(1,184)
Deferred income taxes	(9,304)	(5,451)	24,875
Changes in
Interest receivable	373	2,954	1,916
Prepaid expenses and other assets	(3)	39,303	923
Accrued expenses and other liabilities	(18)	(1,595)	(4,584)
Income taxes refundable/payable	(2,474)	(9,128)	9,267
Net cash provided by operating activities	107,998	84,955	38,768
Investing Activities
Net change in loans	(172,883)	110,669	103,995
Purchase of loans	(2,100)	(12,164)	(23,252)
Proceeds from sale of student loans	799	22,291	9,407
Cash received from purchase of additional business units	66,837		265,769
Purchase of additional business units	(1)	(26)
Purchase of premises and equipment	(19,425)	(29,850)	(15,121)
Proceeds from sale of premises and equipment	1,007	354	266
Proceeds from sale of foreclosed assets	21,774	31,791	18,155
Capitalized costs on foreclosed assets	(267)	(1,669)	(502)
Proceeds from maturities, calls and repayments of held-to-maturity securities	100	45,165	70
Proceeds from sale of available-for-sale securities	21,001	296,829	110,739
Proceeds from maturities, calls and repayments of available-for-sale securities	151,731	199,113	229,069
Purchase of available-for-sale securities	(224,614)	(508,464)	(283,453)
Purchase of held-to-maturity securities	(840)	(30,000)	(40,000)
(Purchase) redemption of Federal Home Loan Bank stock	2,462	(349)	6,924
Net cash provided by (used in) investing activities	(154,419)	123,690	382,066
Financing Activities
Net decrease in certificates of deposit	(144,072)	(332,387)	(277,165)
Net increase in checking and savings accounts	231,875	216,535	224,577
Repayments of Federal Home Loan Bank advances	(32,293)	(17,028)	(103,148)
Net increase (decrease) in short term borrowings	(40,561)	(78,224)	23,679
Redemption of CPP preferred stock	(58,000)
Proceeds from issuance of SBLF preferred stock	57,943
Repurchase of common stock warrants	(6,436)
Advances to borrowers for taxes and insurance	169	(249)	(103)
Dividends paid	(12,237)	(12,567)	(12,376)
Stock options exercised	311	670	358
Net cash used in financing activities	(3,301)	(223,250)	(144,178)
Increase (Decrease) in Cash and Cash Equivalents	(49,722)	(14,605)	276,656
Cash and Cash Equivalents, Beginning of Year	429,971	444,576	167,920
Cash and Cash Equivalents, End of Year	$ 380,249	$ 429,971	$ 444,576