Note 28: Condensed Parent Company Statements: Condensed Statement of Comprehensive Income -- Great Southern Bancorp, Inc. (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Unrealized Appreciation (Depreciation) on Available for Sale Securities, Net	$ (2,363)	$ (1,321)	$ 6,128
Statements of Comprehensive Income | Parent Company
Unrealized Appreciation (Depreciation) on Available for Sale Securities, Net	(158)	400	185
Reclassification adjustment for gains included in net income	(1,742)
Change in Fair Value of Cash Flow Hedge, Net	87	(50)	(164)
Comprehensive Income of subsidiaries	(2,293)	(1,722)	4,553
Comprehensive Income parent	$ 41,236	$ 45,130	$ 48,103