Goodwill and Other Intangible Assets (Schedule of Changes in Carrying Amounts of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Goodwill [Roll Forward]
Beginning Balance	$ 799,182	$ 320,538
Goodwill recorded in connection with the Cerner Health Services acquisition	46,940	485,387
Foreign currency translation adjustment and other	(1,922)	(6,743)
Ending Balance	844,200	799,182
Domestic Segment [Member]
Goodwill [Roll Forward]
Beginning Balance	730,837	311,170
Goodwill recorded in connection with the Cerner Health Services acquisition	51,827	419,667
Foreign currency translation adjustment and other	0	0
Ending Balance	782,664	730,837
Global Segment [Member]
Goodwill [Roll Forward]
Beginning Balance	68,345	9,368
Goodwill recorded in connection with the Cerner Health Services acquisition	(4,887)	65,720
Foreign currency translation adjustment and other	(1,922)	(6,743)
Ending Balance	$ 61,536	$ 68,345