Restructuring and impairment charges by segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Restructuring and other impairment charges
Restructuring charges	$ 580	$ 7,623	$ 5,028	$ 15,403
Vascular North America
Restructuring and other impairment charges
Restructuring charges	520	6,811	2,783	6,886
Anesthesia North America
Restructuring and other impairment charges
Restructuring charges	(2)	1,151	534	1,178
Surgical North America
Restructuring and other impairment charges
Restructuring charges	0	0	246	0
EMEA
Restructuring and other impairment charges
Restructuring charges	(43)	(1,575)	(75)	6,315
Asia
Restructuring and other impairment charges
Restructuring charges	1	519	1	597
All Other
Restructuring and other impairment charges
Restructuring charges	$ 104	$ 717	$ 1,539	$ 427