v3.21.2
ACQUISITIONS - Narrative (Details)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 27, 2021
USD ($)
Mar. 28, 2021
acquisition
Jun. 28, 2020
USD ($)
Mar. 29, 2020
acquisition
Jun. 27, 2021
USD ($)
facility
acquisition
Jun. 28, 2020
USD ($)
Dec. 31, 2020
USD ($)
acquisition
Business Acquisition [Line Items]              
Number of acquisitions | acquisition       3      
Total sales $ 1,019,953   $ 424,045   $ 1,870,436 $ 1,013,277  
Operating income 95,266   12,106   163,747 51,385  
Cash payments related to contingent consideration liabilities         $ 1,000 2,000  
Number of immaterial acquisitions | acquisition         4   4
Cash, net of cash acquired         $ 252,660 23,838  
Goodwill 453,537       453,537   $ 395,800
Pro forma amortization expense 600   5,200   $ 3,100 10,500  
2021 Acquisitions              
Business Acquisition [Line Items]              
Number of acquisitions | acquisition   3     7    
Total sales 56,700       $ 62,100    
Operating income 6,000       6,000    
Cash payments related to contingent consideration liabilities         3,000    
Cash, net of cash acquired         253,336    
Business combination, consideration transferred, equity interests issued and issuable         10,211    
Property, plant & equipment 46,986       46,986    
Goodwill 50,607       $ 50,607    
2020 Acquisitions              
Business Acquisition [Line Items]              
Number of acquisitions | acquisition             11
Total sales     $ 3,300     $ 3,800  
Cash payments related to contingent consideration liabilities             $ 4,763
Cash, net of cash acquired             306,335
Business combination, consideration transferred, equity interests issued and issuable             0
Property, plant & equipment             65,083
Goodwill             $ 90,268
2020 Acquisitions | Minimum              
Business Acquisition [Line Items]              
Contingent consideration, performance period             1 year
2020 Acquisitions | Maximum              
Business Acquisition [Line Items]              
Contingent consideration, performance period             3 years
Certain Acquisitions              
Business Acquisition [Line Items]              
Number of acquisitions | acquisition         3   7
Fair value of estimated contingent consideration payments 9,800       $ 9,800   $ 6,900
Contingent consideration arrangements maximum payments amount 19,500       19,500    
Cash payments related to contingent consideration liabilities 1,000            
Contingent consideration liability, non cash increase to accrued liabilities         900    
Certain Acquisitions | Accrued liabilities              
Business Acquisition [Line Items]              
Fair value of estimated contingent consideration payments 4,200       4,200   1,600
Certain Acquisitions | Other long-term liabilities              
Business Acquisition [Line Items]              
Fair value of estimated contingent consideration payments 5,600       $ 5,600   5,300
Alpha Systems LLC              
Business Acquisition [Line Items]              
Number of facilities acquired | facility         9    
One Acquisition In 2021              
Business Acquisition [Line Items]              
Total sales         $ 32,200    
Operating income         1,900    
Business combination and liabilities assumed, cash and equivalents 147,100       147,100    
Business combination, consideration transferred, equity interests issued and issuable         10,200    
Property, plant & equipment 26,800       26,800    
Identifiable intangible assets 90,400       90,400    
Accounts payable and accrued liabilities 18,200       18,200    
Operating lease right of use assets and liabilities 11,500       11,500    
Goodwill $ 28,900       $ 28,900    
One Acquisitions In 2020              
Business Acquisition [Line Items]              
Property, plant & equipment             49,300
Identifiable intangible assets             49,100
Goodwill             32,600
Cash consideration             $ 129,700