INCOME TAXES (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 29, 2018	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries
United States		$ 127,852,000	$ 152,372,000	$ 136,682,000
Foreign		15,589,000	76,092,000	83,772,000
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries		143,441,000	228,464,000	220,454,000
2017 tax act, estimated income tax expense			41,935
2017 tax act, estimated income tax expense from decrease related to deferred taxes	$ 20,372,000		20,372,000
Unremitted foreign earnings	394,000	394,000
Current:
Federal		21,106,000	49,324,000	41,539,000
State		6,585,000	4,415,000	5,467,000
Foreign		17,559,000	12,880,000	19,123,000
Total		45,250,000	66,619,000	66,129,000
Non-current:		(456,000)	(229,000)	(381,000)
Deferred:
Federal		213,000	(9,626,000)	8,504,000
State		9,000	(385,000)	202,000
Foreign	$ 11,673,000	(1,881,000)	49,766,000	(32,391,000)
Total		(1,659,000)	39,755,000	(23,685,000)
Total income tax expense (benefit)		$ 43,135,000	$ 106,145,000	$ 42,063,000
Reconciliations of statutory federal income tax rate and effective tax rate
Statutory federal income tax rate (as a percent)	25.00%	21.00%	35.00%	35.00%
State income taxes, net of federal benefit (as a percent)		3.50%	1.40%	1.70%
Carryforwards, credits and changes in valuation allowances (as a percent)		3.20%	(1.40%)	2.90%
Foreign tax rate differences (as a percent)		(1.00%)	(4.10%)	(4.80%)
Changes in unrecognized tax benefits (as a percent)		(0.30%)	(0.10%)	(0.20%)
Domestic production activities deduction (as a percent)		(0.00%)	(2.10%)	(2.00%)
Goodwill impairment (as a percent)		2.20%	0.00%	0.00%
UK tax rate reduction (as a percent)		0.00%	0.00%	1.00%
Reversal of contingent liability (as a percent)		(0.00%)	(0.00%)	(2.20%)
UK defined benefit pension plan (as a percent)		(0.00%)	(0.00%)	(14.60%)
Effects of 2017 Tax Act (as a percent)		(0.50%)	18.40%	0.00%
Other (as a percent)		2.00%	(0.60%)	2.30%
Total (as a percent)		30.10%	46.50%	19.10%
Deferred income tax assets:
Accrued expenses and allowances	$ 4,354,000	$ 4,354,000	$ 13,373,000
Accrued insurance	644,000	644,000	818,000
Tax credits and loss carryforwards	56,867,000	56,867,000	54,521,000
Defined benefit pension liability	36,328,000	36,328,000	47,459,000
Inventory allowances	4,384,000	4,384,000	3,433,000
Accrued warranty	3,914,000	3,914,000	4,602,000
Deferred compensation	28,706,000	28,706,000	29,421,000
Gross deferred income tax assets	135,197,000	135,197,000	153,627,000
Valuation allowance	(33,228,000)	(33,228,000)	(27,864,000)
Net deferred income tax assets	101,969,000	101,969,000	125,763,000
Deferred income tax liabilities:
Work-in-process	1,064,000	1,064,000	1,805,000
Property, plant and equipment	25,477,000	25,477,000	26,826,000
Intangible assets	44,850,000	44,850,000	39,613,000
Withholding taxes	2,746,000	2,746,000	11,673,000
Other liabilities	4,545,000	4,545,000	1,819,000
Total deferred income tax liabilities	78,682,000	78,682,000	81,736,000
Net deferred income tax asset/(liability)	23,287,000	23,287,000	44,027,000
Deferred income tax assets (liabilities), Balance Sheet Caption
Other assets	66,776,000	66,776,000	78,933,000
Deferred income taxes	(43,489,000)	(43,489,000)	(34,906,000)
Net deferred income tax asset/(liability)	23,287,000	23,287,000	44,027,000
Income tax expense due to nondeductible goodwill impairment		3,171
Income tax expense due to nondeductible restructuring charges		6,756
Remeasurement of income tax benefit related to UK benefit plans		32,450,000
Provision for valuation allowance		9,888,000
Reversal of non-current contingent liability		16,591,000
Tax credit and net operating loss carryforwards related to the defined benefit pension obligation	57,000	57,000	54,521,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross Unrecognized Tax Benefits beginning of year		3,196,000	3,400,000
Gross increases—tax positions in prior period		103,000	5,000
Gross decreases tax positions in prior period		(199,000)	0
Gross increases current period tax positions		280,000	1,044,000
Settlements with taxing authorities		(50,000)	(65,000)
Lapse of statute of limitations		(731,000)	(1,188,000)
Gross Unrecognized Tax Benefits end of year	2,599,000	2,599,000	3,196,000	$ 3,400,000
Uncertain tax positions for which reversal is reasonably possible during the next 12 months	766	766
Reduction of income tax expense, due to expiration of statutes of limitation		577,000	772,000
Accrued interest and penalties relating to unrecognized tax benefits	196,000	196,000	187,000
Unrecognized tax benefits that, if recognized, would affect effective tax rate	2,536,000	2,536,000	3,059,000
Federal
Income Tax Contingency [Line Items]
2017 tax act, provisional transition tax obligation			9,890,000
2017 tax act, measurement basis adjustment, expense (benefit)		(550)
Foreign
Income Tax Contingency [Line Items]
2017 tax act, provisional transition tax obligation			10,373
2017 tax act, measurement basis adjustment, expense (benefit)		(140)
2017 tax act, transition tax obligation	918	918
State
Income Tax Contingency [Line Items]
2017 tax act, provisional transition tax obligation			$ 1,300
2017 tax act, transition tax obligation	$ 99	99
U.K. | Capital Loss Carryforward
Deferred income tax assets (liabilities), Balance Sheet Caption
Decrease in tax capital loss carryforwards		$ 60,691,000