Consummation of Merger (Details) - USD ($) $ / shares in Units, $ in Millions	7 Months Ended
Mar. 31, 2016	Jun. 26, 2015
Forecast \| Ameriana Bancorp
Business Acquisition [Line Items]
Estimated transaction value	$ 68.8
Ameriana Bancorp
Business Acquisition [Line Items]
Closing price of common stock (usd per share)		$ 25.13

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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