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Acquisitions (Narrative) (Details) - Jibe Consulting, Inc [Member] - USD ($) $ in Millions |  | 3 Months Ended
--- | --- | ---
May 01, 2017 | Mar. 29, 2019
Business Acquisition [Line Items] |  |
Effective date of acquisition | May 01, 2017 |
Purchase consideration | $ 5.4 |
Purchase consideration, common stock | $ 3.6 |
Common stock vesting period | 4 years |
Contingent consideration performance period | 18 months |
Selling Shareholder's [Member] |  |
Business Acquisition [Line Items] |  |
Cash compensation benefit |  | $ 1.2
Cash Contingent Consideration [Member] |  |
Business Acquisition [Line Items] |  |
Contingent consideration | $ 0.7 |
Stock Based Contingent Consideration [Member] |  |
Business Acquisition [Line Items] |  |
Contingent consideration | $ 1.0 |

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