FAIR VALUE MEASUREMENTS - Additional information (Details)	3 Months Ended		6 Months Ended
	Jun. 27, 2020 USD ($) quarter	Jun. 29, 2019 USD ($)	Jun. 27, 2020 USD ($)	Jun. 29, 2019 USD ($)	Feb. 29, 2020 USD ($)	Feb. 24, 2020 USD ($)	Dec. 28, 2019 USD ($)	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment for contingent consideration	$ 33,000,000.0	$ 0	$ 33,000,000.0	$ 0
Number of quarters | quarter	12
Change in fair value due to change in discount rate	$ 8,600,000		8,600,000
Consolidated Aerospace Manufacturing (CAM)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligation to make future payments	155,300,000		155,300,000			$ 155,300,000
Consolidated Aerospace Manufacturing (CAM) | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligation to make future payments					$ 200,000,000.0
Craftsman
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liabilities	$ 176,000,000.0		$ 176,000,000.0				$ 196,100,000
Craftsman | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of sales								2.50%
Craftsman | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of sales								3.50%