v3.21.1
Summary of Significant Accounting Policies (Details) - Hman Group holdings Inc and subsidiaries - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Disaggregated revenue          
Total revenues $ 341,281 $ 295,836 $ 1,368,295 $ 1,214,362 $ 974,175
United States          
Disaggregated revenue          
Total revenues 302,097 265,520 1,214,418 1,070,173 822,028
Canada          
Disaggregated revenue          
Total revenues 36,281 28,081 144,409 133,035 143,864
Mexico          
Disaggregated revenue          
Total revenues 2,903 2,235 9,468 11,154 8,283
Fastening and Hardware          
Disaggregated revenue          
Total revenues 200,693 175,708 838,358 728,489 718,455
Personal Protective          
Disaggregated revenue          
Total revenues 84,340 62,789 317,766 245,769 55,448
Keys and Key Accessories          
Disaggregated revenue          
Total revenues 42,455 44,404 160,706 189,460 148,115
Engraving          
Disaggregated revenue          
Total revenues 13,786 12,925 51,429 50,622 52,157
Resharp          
Disaggregated revenue          
Total revenues 7 10 36 22  
Hardware and Protective Solutions          
Disaggregated revenue          
Total revenues 250,929 213,176 1,024,392 853,016 636,717
Hardware and Protective Solutions | United States          
Disaggregated revenue          
Total revenues 246,797 209,677 1,007,135 835,957 626,490
Hardware and Protective Solutions | Canada          
Disaggregated revenue          
Total revenues 1,229 1,264 7,789 5,905 1,944
Hardware and Protective Solutions | Mexico          
Disaggregated revenue          
Total revenues 2,903 2,235 9,468 11,154 8,283
Hardware and Protective Solutions | Fastening and Hardware          
Disaggregated revenue          
Total revenues 166,602 150,387 706,865 607,247 581,269
Hardware and Protective Solutions | Personal Protective          
Disaggregated revenue          
Total revenues 84,327 62,789 317,527 245,769 55,448
Robotics and Digital Solutions          
Disaggregated revenue          
Total revenues 55,879 56,308 209,287 236,086 196,043
Robotics and Digital Solutions | United States          
Disaggregated revenue          
Total revenues 55,300 55,843 207,283 234,216 195,538
Robotics and Digital Solutions | Canada          
Disaggregated revenue          
Total revenues 579 465 2,004 1,870 505
Robotics and Digital Solutions | Keys and Key Accessories          
Disaggregated revenue          
Total revenues 42,094 43,375 157,828 185,451 143,898
Robotics and Digital Solutions | Engraving          
Disaggregated revenue          
Total revenues 13,778 12,923 51,423 50,613 $ 52,145
Robotics and Digital Solutions | Resharp          
Disaggregated revenue          
Total revenues 7 10 $ 36 $ 22  
Canada          
Disaggregated revenue          
Total revenues 34,473 26,352      
Canada | Canada          
Disaggregated revenue          
Total revenues 34,473 26,352      
Canada | Fastening and Hardware          
Disaggregated revenue          
Total revenues 34,091 25,321      
Canada | Personal Protective          
Disaggregated revenue          
Total revenues 13        
Canada | Keys and Key Accessories          
Disaggregated revenue          
Total revenues 361 1,029      
Canada | Engraving          
Disaggregated revenue          
Total revenues $ 8 $ 2