Future Minimum Lease Payments under Existing Operating and Capital Leases (Details) - World of Medicine GmbH $ in Thousands	Sep. 29, 2017 USD ($)
Operating Leases
2017 (remainder of year)	$ 573
2018	2,250
2019	2,150
2020	2,128
2021	2,005
Thereafter	7,207
Total minimum lease payments	16,313
Capital Leases
2017 (remainder of year)	40	[1]
2018	130	[1]
2019	90	[1]
2020	75	[1]
Total minimum lease payments	$ 335	[1]

[1] Capital lease payments include interest payments of less than $0.1 million