Business Combinations (Narrative) (Detail) (USD $)
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6 Months Ended | 0 Months Ended | 54 Months Ended | 0 Months Ended | 12 Months Ended | ||||||
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Jun. 30, 2014
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May 16, 2014
Urban Partnership Bank, Stone Park branch [Member]
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Oct. 18, 2013
Diamond Bancorp, Inc [Member]
locations
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May 01, 2013
First Lansing Bancorp, Inc. [Member]
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Jun. 30, 2014
FDIC Assisted [Member]
financial_institution
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Apr. 28, 2014
Policy Billing Services Inc. [Member]
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Oct. 02, 2013
Surety Financial Services [Member]
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Sep. 30, 2013
Surety Financial Services [Member]
locations
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May 01, 2013
South And Southwest Suburbs of Chicago, Illinois [Member]
First Lansing Bancorp, Inc. [Member]
locations
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May 01, 2013
Northwest Indiana [Member]
First Lansing Bancorp, Inc. [Member]
locations
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Feb. 01, 2013
Second Federal [Member]
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Business Acquisition [Line Items] | |||||||||||
Effective date of acquisition | May 16, 2014 | Oct. 18, 2013 | May 01, 2013 | Apr. 28, 2014 | Oct. 01, 2013 | ||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | $ 5,500,000 | $ 169,100,000 | $ 334,700,000 | ||||||||
Assumed deposits | 5,400,000 | 140,200,000 | 331,400,000 | ||||||||
Additional goodwill recorded on acquisition | 7,035,000 | 600,000 | 8,400,000 | 14,000,000 | 6,400,000 | 9,500,000 | |||||
Number of locations | 4 | 5 | 7 | 1 | |||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 172,500,000 | 373,400,000 | |||||||||
Business acquisition, loans acquired | 91,700,000 | 123,000,000 | 7,400,000 | ||||||||
Number of FDIC assisted banks acquired | 9 | ||||||||||
FDIC loss sharing percentage on purchased loans, OREO, and certain other assets | 80.00% | ||||||||||
Divestiture of businesses, deposits disposed | 149,000,000 | ||||||||||
Number of Affiliated Companies Acquired | 2 | ||||||||||
Mortgage Loan Originations | $ 1,000,000,000 |