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Deferred Costs (Notes)
3 Months Ended
Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
Deferred Costs

Deferred costs are included in other current assets on the consolidated balance sheets and represent costs of labor, third party maintenance and support contracts, and outside consultants related to transactions where the revenue recognition criteria has not been met.