Consolidated Statements of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Tower Financial Corporation [Member]	Founders Financial Corporation [Member]	Common Stock [Member]	Common Stock [Member] Tower Financial Corporation [Member]	Common Stock [Member] Founders Financial Corporation [Member]	Capital Surplus [Member]	Capital Surplus [Member] Tower Financial Corporation [Member]	Capital Surplus [Member] Founders Financial Corporation [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2013	$ 1,162,640			$ 99,859			$ 900,254			$ 206,993	$ (44,466)
Net income	45,283									45,283
Other comprehensive income (loss)	11,125										11,125
Acquisition		$ 78,727			$ 5,626			$ 73,101
Dividends - common stock	(22,631)									(22,631)
Common stock issued	157			11			146
Common stock repurchased	(1,597)			(117)			(1,480)
Stock based compensation expense	2,506						2,506
Stock activity under incentive compensation plans	1,121			472			827			(178)
Ending Balance at Jun. 30, 2014	1,277,331			105,851			975,354			229,467	(33,341)
Beginning Balance at Dec. 31, 2014	1,465,764			116,847			1,118,292			262,180	(31,555)
Net income	47,062									47,062
Other comprehensive income (loss)	(6,507)										(6,507)
Acquisition			$ 50,626			$ 3,402			$ 47,224
Dividends - common stock	(28,065)									(28,065)
Common stock issued	192			14			178
Common stock repurchased	(74,594)			(5,385)			(69,209)
Stock based compensation expense	2,236						2,236
Stock activity under incentive compensation plans	9			327			(337)			19
Ending Balance at Jun. 30, 2015	$ 1,456,723			$ 115,205			$ 1,098,384			$ 281,196	$ (38,062)