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