Restructuring charges by segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring and other impairment charges
Restructuring charges	$ 660	$ 1,108	$ 5,688	$ 16,511
Vascular North America
Restructuring and other impairment charges
Restructuring charges	232	(15)	2,466	6,748
Anesthesia North America
Restructuring and other impairment charges
Restructuring charges	(250)	15	284	1,193
Surgical North America
Restructuring and other impairment charges
Restructuring charges	36	0	282	0
EMEA
Restructuring and other impairment charges
Restructuring charges	(64)	849	(139)	7,164
Asia
Restructuring and other impairment charges
Restructuring charges	2	111	3	708
All Other
Restructuring and other impairment charges
Restructuring charges	$ 704	$ 148	$ 2,792	$ 698