Great Southern Bancorp, Inc. -- Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Activities
Net income	$ 48,706	$ 30,269	$ 23,865
Proceeds from sales of loans held for sale	269,817	191,476	179,584
Originations of loans held for sale	(264,179)	(195,081)	(189,269)
Items not requiring (providing) cash
Depreciation	7,159	5,099	3,571
Amortization	7,039	4,361	2,087
Compensation expense for stock option grants	435	486	461
Provision for loan losses	43,863	35,336	35,630
Net gains on loan sales	(5,505)	(3,524)	(3,765)
Net realized (gains) losses and impairment on available-for-sale securities	(1,986)	132	(8,787)
(Gain) loss on sale of premises and equipment	264	202	(44)
Loss on sale/write-down of foreclosed assets	4,968	13,712	588
Gain on purchase of additional business units	(31,312)	(16,486)
Gain on sale of business units	(6,114)
Amortization of deferred income, premiums and discounts	18,004	48,627	15,063
Loss on derivative interest rate products	39	10
Deferred income taxes	13,252	(9,304)	(5,451)
Changes in
Interest receivable	2,765	373	2,954
Prepaid expenses and other assets	31,412	(6,712)	21,817
Accrued expenses and other liabilities operating activities	(3,124)	(18)	(1,595)
Income taxes refundable/payable	11,413	2,474	(9,128)
Net cash provided by operating activities	146,916	101,432	67,581
Investing Activities
Net change in loans	(1,425)	(173,026)	110,557
Purchase of loans	(23,457)	(2,100)	(12,164)
Proceeds from sale of student loans		799	22,291
Cash received from purchase of additional business units	75,328	66,837
Cash received from FDIC loss sharing reimbursements	49,369	6,709	17,486
Proceeds from sale of business units	7,800
Purchase of additional business units		(1)	(26)
Purchase of premises and equipment	(27,825)	(19,425)	(29,850)
Proceeds from sale of premises and equipment	1,728	1,007	354
Proceeds from sale of foreclosed assets	51,225	21,774	31,791
Capitalized costs on foreclosed assets	(510)	(267)	(1,669)
Proceeds from maturities, calls and repayments of held-to-maturity securities	945	100	45,165
Proceeds from sale of available-for-sale securities	78,094	21,001	296,829
Proceeds from maturities, calls and repayments of available-for-sale securities	182,900	151,731	199,113
Purchase of available-for-sale securities	(155,339)	(224,614)	(508,464)
Purchase of held-to-maturity securities		(840)	(30,000)
(Purchase) redemption of Federal Home Loan Bank stock	2,578	2,462	(349)
Net cash provided by (used in) investing activities	241,411	(147,853)	141,064
Financing Activities
Net decrease in certificates of deposit	(421,977)	(144,072)	(332,387)
Net increase in checking and savings accounts	156,867	231,875	216,535
Repayments of Federal Home Loan Bank advances	(52,993)	(32,293)	(17,028)
Net increase (decrease) in short term borrowings	(36,981)	(40,561)	(78,224)
Proceeds from Federal Home Loan Bank advances	800
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	571	169	(249)
Dividends paid	(12,991)	(12,237)	(12,567)
Stock options exercised	2,269	311	670
Net cash used in financing activities	(364,435)	(3,301)	(223,250)
Increase (Decrease) in Cash and Cash Equivalents	23,892	(49,722)	(14,605)
Cash and Cash Equivalents, Beginning of Year	380,249	429,971	444,576
Cash and Cash Equivalents, End of Year	$ 404,141	$ 380,249	$ 429,971