Contingencies Details (Policies)	12 Months Ended
Dec. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies, Policy [Policy Text Block]	We accrue estimates for resolution of any legal and other contingencies when losses are probable and estimable, in accordance with ASC 450, Contingencies. The terms of our software license agreements with our clients generally provide for a limited indemnification of such clients against losses, expenses and liabilities arising from third party claims based on alleged infringement by our solutions of an intellectual property right of such third party. The terms of such indemnification often limit the scope of and remedies for such indemnification obligations and generally include a right to replace or modify an infringing solution. To date, we have not had to reimburse any of our clients for any judgments or settlements to third parties related to these indemnification provisions pertaining to intellectual property infringement claims. For several reasons, including the lack of a sufficient number of prior indemnification claims and the lack of a monetary liability limit for certain infringement cases under the terms of the corresponding agreements with our clients, we cannot determine the maximum amount of potential future payments, if any, related to such indemnification provisions. In addition to commitments and obligations in the ordinary course of business, we are subject to various legal proceedings and claims that arise in the ordinary course of business, including for example, employment and client disputes and litigation alleging solution and implementation defects, personal injury, intellectual property infringement, violations of law and breaches of contract and warranties. In addition, we are a defendant in lawsuits filed in federal and state courts brought as putative class or collective actions on behalf of various groups of current and former associates in the U.S. alleging that we misclassified associates as exempt from overtime pay under the Fair Labor Standards Act and state wage and hour laws. These proceedings are at various procedural stages and seek unspecified monetary damages, injunctive relief, costs and attorneys' fees. Given the substantial uncertainties, such as the impact of discovery and the extent to which significant factual issues are resolved, the disposition of pre-trial motions, the extent of potential damages that are often unspecified or indeterminate, and the status of settlement discussions, we cannot predict with any reasonable certainty the timing or outcome of such contingencies. At this time, we do not believe any material losses under these claims to be probable or estimable. No less than quarterly, we review the status of each significant matter and assess our potential financial exposure. We accrue a liability for an estimated loss if the potential loss from any legal proceeding or claim is considered probable and the amount can be reasonably estimated. Significant judgment is required in both the determination of probability and the determination as to whether the amount of an exposure is reasonably estimable, and accruals are based only on the information available to our management at the time the judgment is made. Furthermore, the outcome of legal proceedings is inherently uncertain, and we may incur substantial defense costs and expenses defending any of these matters. Should any one or a combination of more than one of these proceedings be successful, or should we determine to settle any one or a combination of these matters, we may be required to pay substantial sums, become subject to the entry of an injunction or be forced to change the manner in which we operate our business, which could have a material adverse impact on our business, results of operations, cash flows or financial condition.

We accrue estimates for resolution of any legal and other contingencies when losses are probable and estimable, in accordance with ASC 450, Contingencies.

The terms of our software license agreements with our clients generally provide for a limited indemnification of such clients against losses, expenses and liabilities arising from third party claims based on alleged infringement by our solutions of an intellectual property right of such third party. The terms of such indemnification often limit the scope of and remedies for such indemnification obligations and generally include a right to replace or modify an infringing solution. To date, we have not had to reimburse any of our clients for any judgments or settlements to third parties related to these indemnification provisions pertaining to intellectual property infringement claims. For several reasons, including the lack of a sufficient number of prior indemnification claims and the lack of a monetary liability limit for certain infringement cases under the terms of the corresponding agreements with our clients, we cannot determine the maximum amount of potential future payments, if any, related to such indemnification provisions.

In addition to commitments and obligations in the ordinary course of business, we are subject to various legal proceedings and claims that arise in the ordinary course of business, including for example, employment and client disputes and litigation alleging solution and implementation defects, personal injury, intellectual property infringement, violations of law and breaches of contract and warranties. In addition, we are a defendant in lawsuits filed in federal and state courts brought as putative class or collective actions on behalf of various groups of current and former associates in the U.S. alleging that we misclassified associates as exempt from overtime pay under the Fair Labor Standards Act and state wage and hour laws. These proceedings are at various procedural stages and seek unspecified monetary damages, injunctive relief, costs and attorneys' fees. Given the substantial uncertainties, such as the impact of discovery and the extent to which significant factual issues are resolved, the disposition of pre-trial motions, the extent of potential damages that are often unspecified or indeterminate, and the status of settlement discussions, we cannot predict with any reasonable certainty the timing or outcome of such contingencies. At this time, we do not believe any material losses under these claims to be probable or estimable.

No less than quarterly, we review the status of each significant matter and assess our potential financial exposure. We accrue a liability for an estimated loss if the potential loss from any legal proceeding or claim is considered probable and the amount can be reasonably estimated. Significant judgment is required in both the determination of probability and the determination as to whether the amount of an exposure is reasonably estimable, and accruals are based only on the information available to our management at the time the judgment is made. Furthermore, the outcome of legal proceedings is inherently uncertain, and we may incur substantial defense costs and expenses defending any of these matters. Should any one or a combination of more than one of these proceedings be successful, or should we determine to settle any one or a combination of these matters, we may be required to pay substantial sums, become subject to the entry of an injunction or be forced to change the manner in which we operate our business, which could have a material adverse impact on our business, results of operations, cash flows or financial condition.