Description of Business and Significant Accounting Policies Redeemable Noncontrolling Interest (Details)	Dec. 31, 2016
NCR Manaus [Member]
Redeemable Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	49.00%

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.

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