Note 28: Condensed Parent Company Statements: Condensed Balance Sheet -- Great Southern Bancorp, Inc. (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Cash	$ 120,203	$ 115,198
Available-for-sale securities	213,872	262,856
Prepaid expenses and other assets	45,649	59,322
Total assets	4,550,663	4,104,189
Subordinated Debt	75,000
Additional paid-in capital	25,942	24,371
Retained earnings	402,166	368,053
Statements of Financial Condition | Parent Company | Assets
Cash	37,716	20,009
Available-for-sale securities		3,830
Investment in subsidiary bank	494,947	403,174
Deferred income taxes	89
Prepaid expenses and other assets	1,214	1,335
Total assets	533,966	428,348
Statements of Financial Condition | Parent Company | Liabilities and Stockholders Equity
Accounts Payable and Other Accrued Liabilities	4,849	3,403
Deferred Tax Liabilities, Gross		944
Subordinated Debt	25,774	25,774
Preferred Stock Value Parent	73,537
Common Stock Value Parent	140	139
Additional paid-in capital	25,942	24,371
Retained earnings	402,166	368,053
Unrealized gain on available-for-sale securities, parent net	1,558	5,664
Total Assets and Liabilities	$ 533,966	$ 428,348