XML 31 R25.htm IDEA: XBRL DOCUMENT

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 1, 2013, the Company completed its previously announced acquisition of First Lansing Bancorp, Inc. ("FLB"). FLB is the parent company of First National Bank of Illinois ("FNBI"), which operates seven banking locations in the south and southwest suburbs of Chicago, Illinois as well as one location in northwest Indiana. Through this transaction, subject to final adjustments, the Company acquired approximately $365 million in assets and assumed approximately $323 million in deposits. The aggregate purchase price was approximately $38.5 million. In the merger, outstanding shares of FLB common stock outstanding were converted into the right to receive merger consideration paid in a combination of approximately 40% cash and approximately 60% shares of Wintrust common stock. Immediately after the acquisition, FNBI was merged into the Company's wholly-owned subsidiary, Old Plank Trail Community Bank, N.A.