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Restructuring charges - Charges Recognized (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 02, 2017 | Jun. 26, 2016 | Jul. 02, 2017 | Jun. 26, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 870 | $ (119) | $ 13,815 | $ 9,849
Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 612 | (609) | 13,361 | 9,243
Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 35 | 55 | 94 | 178
Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 75 | 115 | 134 | 7
Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 148 | 320 | 226 | 421
2017 Vascular Solutions integration program |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 404 |  | 4,887 |
2017 Vascular Solutions integration program | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 370 |  | 4,853 |
2017 Vascular Solutions integration program | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2017 Vascular Solutions integration program | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2017 Vascular Solutions integration program | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 34 |  | 34 |
2017 EMEA restructuring program |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (584) |  | 6,536 |
2017 EMEA restructuring program | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (584) |  | 6,536 |
2017 EMEA restructuring program | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2017 EMEA restructuring program | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2017 EMEA restructuring program | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2016 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 391 |  | 901 |
2016 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 286 |  | 825 |
2016 Footprint realignment plan | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 10 |  | 22 |
2016 Footprint realignment plan | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (4) |  | (75) |
2016 Footprint realignment plan | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 99 |  | 129 |
2015 Restructuring programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | (247) |  | (10)
2015 Restructuring programs | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | (442) |  | (399)
2015 Restructuring programs | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 55 |  | 178
2015 Restructuring programs | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 115 |  | 93
2015 Restructuring programs | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 25 |  | 118
2014 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (114) |  | 197 |
2014 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (121) |  | 182 |
2014 Footprint realignment plan | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 14 |  | 14 |
2014 Footprint realignment plan | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 0 |
2014 Footprint realignment plan | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (7) |  | 1 |
Other restructuring programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 773 |  | 1,294 | (80)
Other restructuring programs | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 661 |  | 965 | 0
Other restructuring programs | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 11 |  | 58 | 0
Other restructuring programs | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 79 |  | 209 | (86)
Other restructuring programs | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 22 |  | $ 62 | 6
2016 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 7 |  | 10,354
2016 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | (279) |  | 10,068
2016 Footprint realignment plan | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 0 |  | 0
2016 Footprint realignment plan | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 0 |  | 0
2016 Footprint realignment plan | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 286 |  | 286
2014 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 121 |  | (415)
2014 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 112 |  | (426)
2014 Footprint realignment plan | Facility Closure Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 0 |  | 0
2014 Footprint realignment plan | Contract Termination Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 0 |  | 0
2014 Footprint realignment plan | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | $ 9 |  | $ 11

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