RESTRUCTURING ACTIVITIES - Schedule of Restructuring Activities (Details) $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 26, 2020 USD ($)	Sep. 26, 2020 USD ($)	Jun. 27, 2020 USD ($)	Dec. 26, 2020 USD ($) facility
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 11,041	$ 2,133	$ 4,019	$ 23,149
ESS
Restructuring Cost and Reserve [Line Items]
Restructuring charges				7,584
Utility
Restructuring Cost and Reserve [Line Items]
Restructuring charges				6,641
Coatings
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 3,951
Coatings | Facility Closing
Restructuring Cost and Reserve [Line Items]
Number of facilities closed | facility				1
Irrigation
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 2,968
Other/ Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,005
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges				6,737
Cost of Sales | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,139
Cost of Sales | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,847
Cost of Sales | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				3,751
Cost of Sales | ESS
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,000
Cost of Sales | ESS | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				474
Cost of Sales | ESS | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				181
Cost of Sales | ESS | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				345
Cost of Sales | Utility
Restructuring Cost and Reserve [Line Items]
Restructuring charges				4,177
Cost of Sales | Utility | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				241
Cost of Sales | Utility | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,070
Cost of Sales | Utility | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,866
Cost of Sales | Coatings
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,560
Cost of Sales | Coatings | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				424
Cost of Sales | Coatings | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				596
Cost of Sales | Coatings | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				540
Cost of Sales | Irrigation
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Irrigation | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Irrigation | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Irrigation | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Other/ Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Other/ Corporate | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Other/ Corporate | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Cost of Sales | Other/ Corporate | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				16,412
Selling, General and Administrative Expenses | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				13,794
Selling, General and Administrative Expenses | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,175
Selling, General and Administrative Expenses | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				443
Selling, General and Administrative Expenses | ESS
Restructuring Cost and Reserve [Line Items]
Restructuring charges				6,584
Selling, General and Administrative Expenses | ESS | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				4,441
Selling, General and Administrative Expenses | ESS | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,700
Selling, General and Administrative Expenses | ESS | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				443
Selling, General and Administrative Expenses | Utility
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,464
Selling, General and Administrative Expenses | Utility | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,393
Selling, General and Administrative Expenses | Utility | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				71
Selling, General and Administrative Expenses | Utility | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Selling, General and Administrative Expenses | Coatings
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,391
Selling, General and Administrative Expenses | Coatings | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,231
Selling, General and Administrative Expenses | Coatings | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				160
Selling, General and Administrative Expenses | Coatings | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Selling, General and Administrative Expenses | Irrigation
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,968
Selling, General and Administrative Expenses | Irrigation | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,968
Selling, General and Administrative Expenses | Irrigation | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Selling, General and Administrative Expenses | Irrigation | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				0
Selling, General and Administrative Expenses | Other/ Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges				2,005
Selling, General and Administrative Expenses | Other/ Corporate | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,761
Selling, General and Administrative Expenses | Other/ Corporate | Other cash restructuring expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				244
Selling, General and Administrative Expenses | Other/ Corporate | Impairments of fixed assets/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 0