RESTRUCTURING ACTIVITIES - Pre-tax Restructuring Expenses Recognized (Details) - Broad Restructuring Plan - USD ($) $ in Thousands	Jun. 25, 2016	Dec. 26, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	$ 14,273	$ 40
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	8,000	22
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	6,273	18
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining		1
Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,298
Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1,829
Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	460
Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	394
Asset impairments/net loss on disposals
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining		$ 20
Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	5,242
Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	4,050
ESS
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	3,029
ESS | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	77
ESS | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,952
ESS | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	32
ESS | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	797
ESS | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
ESS | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	125
ESS | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	45
ESS | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,030
Energy & Mining
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1,541
Energy & Mining | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1,373
Energy & Mining | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	168
Energy & Mining | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	576
Energy & Mining | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	168
Energy & Mining | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	45
Energy & Mining | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Energy & Mining | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	752
Energy & Mining | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Utility
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,455
Utility | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,050
Utility | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	405
Utility | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1,380
Utility | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	405
Utility | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	375
Utility | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Utility | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	295
Utility | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Coatings
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	4,769
Coatings | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	4,500
Coatings | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	269
Coatings | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	310
Coatings | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Coatings | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	40
Coatings | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	269
Coatings | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	4,150
Coatings | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	349
Irrigation | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	349
Irrigation | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	219
Irrigation | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Irrigation | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	130
Other/ Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,130
Other/ Corporate | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Other/ Corporate | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2,130
Other/ Corporate | Severance | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Other/ Corporate | Severance | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	240
Other/ Corporate | Other cash restructuring expenses | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Other/ Corporate | Other cash restructuring expenses | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Other/ Corporate | Asset impairments/net loss on disposals | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0
Other/ Corporate | Asset impairments/net loss on disposals | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	$ 1,890