v3.21.1
ACQUISITIONS - Narrative (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 28, 2021
USD ($)
acquisition
Mar. 29, 2020
USD ($)
acquisition
Dec. 31, 2020
USD ($)
acquisition
Business Acquisition [Line Items]      
Number of acquisitions | acquisition 4 3 7
Total sales $ 850,483 $ 589,232  
Fair value of estimated contingent consideration payments 6,900   $ 6,900
Contingent consideration arrangements maximum payments amount 14,500    
Cash payments related to contingent consideration liabilities $ 0 2,000  
Number of immaterial acquisitions | acquisition 3   4
Cash, net of cash acquired $ 28,864 24,281  
Goodwill 405,382   $ 395,800
Pro forma amortization expense 100 $ 3,000  
Acquired Entities      
Business Acquisition [Line Items]      
Total sales 5,400    
Cash payments related to contingent consideration liabilities 0   4,763
Cash, net of cash acquired 29,539   306,353
Property, plant & equipment 4,118   66,525
Goodwill 3,894   $ 88,826
Acquired Entities | Minimum      
Business Acquisition [Line Items]      
Contingent consideration, performance period     1 year
Acquired Entities | Maximum      
Business Acquisition [Line Items]      
Contingent consideration, performance period     3 years
One Acquisition      
Business Acquisition [Line Items]      
Cash consideration     $ 129,700
Property, plant & equipment     49,300
Identifiable intangible assets     49,100
Goodwill     32,600
Accrued liabilities      
Business Acquisition [Line Items]      
Fair value of estimated contingent consideration payments 3,300   1,600
Other long-term liabilities      
Business Acquisition [Line Items]      
Fair value of estimated contingent consideration payments $ 3,600   $ 5,300