INCOME TAXES (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Recognized net tax charge as a result of U.S. Tax Reform		$ 24,700
Recognized charge representing provisional estimate of one-time transition tax		31,600
Estimate of deferred income tax benefit related to corporate rate change		6,800
Income before income taxes:
United States		36,139	$ 55,278	$ 73,492
International		258,686	225,219	221,079
Income before Income Taxes		294,825	280,497	294,571
Current:
U.S. Federal		(342)	24,045	19,749
State/Local		230	449	82
International		72,670	61,511	82,586
Total Current		72,558	86,005	102,417
Deferred:
U.S. Federal/State		2,570	(4,002)	1,605
International		(332)	(7,110)	(8,746)
Total Deferred		2,238	(11,112)	(7,141)
Total		$ 74,796	$ 74,893	$ 95,276
Statutory federal income tax rate (as a percent)	21.00%	35.00%	35.00%	35.00%
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Income tax at statutory rate		$ 103,189	$ 98,174	$ 103,100
State income taxes (benefits), net of federal benefit (tax)		(594)	(980)	(1,254)
Investment incentives		(1,900)	(6,413)	(3,082)
Tax resolutions		(5,188)	(7,205)	2,375
Excess tax benefits from equity compensation		(10,383)
Deferred benefits from tax rate changes		(5,055)
U.S. tax reform - transition tax		31,575
Results of forward contract		(23,883)
Provision for distribution of current foreign earnings		2,843	3,494	2,031
Rate differential on earnings of foreign operations		(17,318)	(12,037)	(5,688)
Other items, net		1,510	(140)	(2,206)
Total		$ 74,796	$ 74,893	$ 95,276
Effective income tax rate (as a percent)		25.40%	26.70%	32.30%
Tax benefit related to reduction of allowances related to tax credits			$ 1,600	$ 1,100
Increase in tax provision due to transfer pricing issues in France				2,400
Income tax amount recognized under the US deemed dividend provisions			2,100	1,600
Income tax provision for planned cash movements in Europe			1,400	$ 400
Deferred Tax Assets:
Pension liabilities		$ 19,393	27,087
Stock compensation		9,101	18,943
Foreign tax credit carryforward		8,320	10,813
Net operating loss carryforwards		10,803	5,150
U.S. state tax credits		9,384	8,103
Vacation		4,748	4,783
Workers compensation		4,534	3,575
Other		4,660	12,651
Total gross deferred tax assets		70,943	91,105
Less valuation allowance		(5,414)	(4,070)
Net deferred tax assets		65,529	87,035
Deferred Tax Liabilities:
Depreciation, amortization and leases		25,062	39,189
Acquisition related intangibles		27,866	30,417
Total gross deferred tax liabilities		52,928	69,606
Net deferred tax assets / (liabilities)		12,601	17,429
Tax-effected net operating loss carryforwards not subject to expiration		6,900
Tax-effected net operating loss subject to expiration		3,900
Amount of net operating losses and state tax credit carryforwards subject to expiration in the next fiscal year		100
State and local | Minimum
Deferred Tax Liabilities:
Estimated additional tax payable on previously unremitted earnings		25,000
State and local | Maximum
Deferred Tax Liabilities:
Estimated additional tax payable on previously unremitted earnings		35,000
Internal Revenue Service (IRS)
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Deferred benefits from tax rate changes		(6,800)
France
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Tax resolutions		(2,000)
Tax settlements attributable to dividends previously taxed in foreign nations			(5,000)
Income tax benefit attributable to reduction in foreign corporate income tax rate			$ 4,700
Corporate income tax rate			34.43%	38.00%
France, Italy, and Germany
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Tax settlements attributable to resolution of foreign tax issues			$ (2,200)
Germany
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Income tax benefit attributable to reduction in foreign corporate income tax rate			2,000
SWITZERLAND
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Income tax benefit attributable to reduction in foreign corporate income tax rate			2,200
CHINA
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Income tax benefit attributable to reduction in foreign corporate income tax rate			$ 2,200
France and Argentina
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Deferred benefits from tax rate changes		1,700
Total Europe
Reconciliation of actual income tax provision and tax provision computed by applying statutory federal income tax rate
Tax resolutions		$ (3,200)