Goodwill and Other Intangible Assets (Other Intangible Assets Narrative) (Details Textual) $ in Millions	6 Months Ended
Jun. 30, 2015 USD ($)
Ahmann & Martin Co. [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, additions during the period	$ 12

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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