INCOME TAXES (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income before income taxes:
United States	$ 31,681,000	$ 28,968,000	$ 58,250,000
International	254,620,000	235,415,000	183,123,000
Income before Income Taxes	286,301,000	264,383,000	241,373,000
Current:
U.S. Federal	14,023,000	7,174,000	17,027,000
State/Local	42,000	(631,000)	491,000
International	99,585,000	79,070,000	70,450,000
Total Current	113,650,000	85,613,000	87,968,000
Deferred:
U.S. Federal/State	(10,130,000)	9,575,000	8,757,000
International	(8,843,000)	(2,731,000)	(17,772,000)
Total Deferred	(18,973,000)	6,844,000	(9,015,000)
Total	94,677,000	92,457,000	78,953,000
Statutory federal income tax rate (as a percent)	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	100,205,000	92,534,000	84,481,000
State income taxes (benefits), net of federal benefit (tax)	770,000	(610,000)	717,000
Provision for distribution of current foreign earnings	695,000	11,388,000	9,552,000
Rate differential on earnings of foreign operations	(5,478,000)	(10,167,000)	(14,865,000)
Other items, net	(1,515,000)	(688,000)	(932,000)
Provision for Income Taxes	94,677,000	92,457,000	78,953,000
Effective income tax rate (as a percent)	33.10%	35.00%	32.70%
Net additional tax expense due to repatriations		10,100,000
Increase in tax provision due to tax law changes in France		6,700,000	700,000
Additional French distribution taxes effective for repatriation of foreign earnings		2,300,000
Benefit from the expected use of net operating losses in Brazil		3,600,000
Benefit from a tax law change in Italy		1,400,000
Tax benefits related to Brazilian capital incentive			700,000
Deferred tax benefits pertaining to merger of entity's Indian operations			1,800,000
Deferred Tax Assets:
Pension liabilities	35,582,000	21,106,000
Stock options	15,672,000	10,785,000
Foreign tax credit carryforward	10,348,000
Net operating loss carryforwards	7,896,000	6,675,000
U.S. state tax credits	7,641,000	6,192,000
Vacation	5,892,000	6,109,000
Workers compensation	4,526,000	4,180,000
Other	9,584,000	15,709,000
Total gross deferred tax assets	97,141,000	70,756,000
Less valuation allowance	(7,734,000)	(4,840,000)
Net deferred tax assets	89,407,000	65,916,000
Deferred Tax Liabilities:
Depreciation, amortization and leases	53,121,000	61,316,000
Acquisition related intangibles	18,058,000	20,100,000
Total gross deferred tax liabilities	71,179,000	81,416,000
Net deferred tax assets / (liabilities)	18,228,000	(15,500,000)
Tax-effected net operating loss carryforwards not subject to expiration	6,200,000
Tax-effected net operating loss subject to expiration	1,700,000
Tax-effected net operating loss carryforwards	7,900,000
U.S. state tax credit carryforwards subject to expiration	7,600,000
Amount of net operating losses and state tax credit carryforwards subject to expiration in the next fiscal year	$ 100,000