Other Operating Expenses, Net (Changes in Accrued Liabilities) (Details) $ in Thousands	12 Months Ended
	Dec. 30, 2016 USD ($)
Investments in Capacity and Capabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	$ 3,024
Restructuring charges	17,159
Write-offs	(2,451)
Cash payments	(17,666)
Restructuring Reserve, Ending balance	66
Orthopaedic Facility Optimization [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	747
Write-offs	(202)
Cash payments	(545)
Restructuring Reserve, Ending balance	0
Severance And Retention [Member] | Investments in Capacity and Capabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	1,429
Restructuring charges	397
Write-offs	0
Cash payments	(1,760)
Restructuring Reserve, Ending balance	66
Severance And Retention [Member] | Orthopaedic Facility Optimization [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	0
Write-offs	0
Cash payments	0
Restructuring Reserve, Ending balance	0
Accelerated Depreciation And Asset Write Offs [Member] | Investments in Capacity and Capabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	2,451
Write-offs	(2,451)
Cash payments	0
Restructuring Reserve, Ending balance	0
Accelerated Depreciation And Asset Write Offs [Member] | Orthopaedic Facility Optimization [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	202
Write-offs	(202)
Cash payments	0
Restructuring Reserve, Ending balance	0
Other Restructuring [Member] | Investments in Capacity and Capabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	1,595
Restructuring charges	14,311
Write-offs	0
Cash payments	(15,906)
Restructuring Reserve, Ending balance	0
Other Restructuring [Member] | Orthopaedic Facility Optimization [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	545
Write-offs	0
Cash payments	(545)
Restructuring Reserve, Ending balance	0
Legacy Lake Region Medical Consolidation [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	4,263
Restructuring charges	8,584
Write-offs	(1,398)
Cash payments	(10,318)
Restructuring Reserve, Ending balance	1,131
Legacy Lake Region Medical Consolidation [Member] | Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	3,667
Restructuring charges	740
Write-offs	0
Cash payments	(3,678)
Restructuring Reserve, Ending balance	729
Legacy Lake Region Medical Consolidation [Member] | Accelerated Depreciation And Asset Write Offs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	0
Restructuring charges	1,398
Write-offs	(1,398)
Cash payments	0
Restructuring Reserve, Ending balance	0
Legacy Lake Region Medical Consolidation [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning balance	596
Restructuring charges	6,446
Write-offs	0
Cash payments	(6,640)
Restructuring Reserve, Ending balance	$ 402