Summary of Significant Accounting Policies Goodwill (Tables) |
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Goodwill Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Goodwill [Table Text Block] |
The changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 were as follows:
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- Definition Goodwill Disclosure [Abstract] No definition available.
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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