Investment in Limited Partnerships (Combined Financial Statements for Limited Partnerships Recorded Under Equity Method of Accounting) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets
Land and property	$ 31,471	$ 32,240
Other assets	17,490	16,217
Total assets	1,391,405	1,422,458
Liabilities
Notes payable	6,830	7,589
Other liabilities	12,861	12,675
Total liabilities	1,279,763	1,282,965
Equity Method Investments [Member]
Assets
Cash	474	367
Land and property	48,722	50,361
Other assets	2,258	2,485
Total assets	51,454	53,213
Liabilities
Notes payable	42,376	43,764
Other liabilities	1,375	1,394
Total liabilities	43,751	45,158
Partners' equity
General partners	(3,652)	(3,649)
Limited partners	11,355	11,704
Total partners' equity	7,703	8,055
Total liabilities and partners' equity	51,454	53,213
Total revenue	6,786	6,606	6,603
Total expenses	(7,472)	(6,905)	(7,518)
Net loss	(686)	(299)	(915)
MutualFirst Financial, Inc. [Member]
Assets
Cash	1,070	2,954
Other assets	10
Total assets	122,801	151,921
Liabilities
Other liabilities	269	822
Total liabilities	$ 11,159	$ 12,428