ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Other Current Liabilities) (Detail) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Current operating lease liabilities	$ 27,263,000	$ 26,773,000
Warranty	25,091,000	17,512,000
Restructuring Reserve	6,944,000	0
Pension and other postretirement liabilities	7,715,000	6,690,000
Other sundry liabilities	31,742,000	23,227,000
Other current liabilities	$ 98,755,000	$ 74,202,000