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Restriction on Cash and Due From Banks	12 Months Ended
Restriction on Cash and Due From Banks	Dec. 31, 2017
Restriction on Cash and Due From Banks
Restriction on Cash and Due From Banks	Note 2: Restriction on Cash and Due From Banks The Company is required to maintain reserve funds in cash and/or on deposit with the Federal Reserve Bank. The reserve required at December 31, 2017 and 2016 was $104.2 million and $109.5 million, respectively.