Debt and Commitments (Details Narrative) € in Thousands			12 Months Ended
	Oct. 19, 2018 USD ($)	Sep. 19, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 USD ($)	Feb. 28, 2017 USD ($)	Jan. 31, 2017 USD ($)	Oct. 15, 2014 USD ($)
Debt Instrument [Line Items]
Notes and overdrafts payable							$ 7,724,000		$ 2,137,000
Finance lease							6,266,000
Capital lease									$ 10,216,000
Letters of credit outstanding, amount							8,759,000
Debt maturities, year 1							9,758,000
Debt maturities, year 2							1,571,000
Debt maturities, year 3							721,566,000
Debt maturities, year 4							761,000
Debt maturities, year 5							101,119,000
Debt maturities, after year 5							0
Interest paid			$ 20,248,000	$ 16,678,000	$ 13,962,000
Interest capitalized			$ 498,000	544,000	415,000
Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 86,000,000
Line of credit facility, interest rate at period end						2.38%	2.38%	0.17%	0.17%
Notes and overdrafts payable							$ 7,700,000		$ 2,041,000
Repayment period			1 month
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Notes and overdrafts payable							24,000		96,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity											$ 750,000,000
Accordion feature amount											$ 250,000,000
Revolving Credit Facility [Member] | International Subsidiary Borrowings [Member]
Debt Instrument [Line Items]
Carrying amount of debt						€ 44,100	49,506,000	€ 179,000	208,589,000
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding							720,379,000		831,016,000
Line of credit facility remaining borrowing capacity							$ 279,621,000		$ 168,984,000
Line of credit facility, interest rate at period end						1.76%	1.76%	1.99%	1.99%
Carrying amount of debt							$ 720,379,000		$ 831,016,000
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Repayment period			2 days
Foreign bank borrowings [Member]
Debt Instrument [Line Items]
Carrying amount of debt							406,000		647,000
Senior Notes [Member] | 3.97% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate												3.97%
Carrying amount of debt							100,000,000		100,000,000
Debt instrument, face amount												$ 100,000,000
Prepayment percentage of principal												100.00%
Euro [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Carrying amount of debt						€ 504,690	$ 565,379,000	€ 470,350	$ 538,316,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt covenant, senior debt ratio (not more than)						3.25	3.25
Debt covenant, senior debt ratio (not more than)						3.75	3.75
Debt covenant, EBITDA to interest expense (not less than)						4.25	4.25
Debt covenant, threshold for permitted acquisition							$ 150,000,000
Debt covenant acquisitions, senior debt ratio (not more than)						3.50	3.50
Debt covenant acquisitions, total debt ratio (not more than)						4.25	4.25
Revolving Credit Facility [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 850,000,000
Revolving Credit Facility [Member] | Fourth Amendment, Maturity February 2022, Accordion Feature [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity										350,000,000
Revolving Credit Facility [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,000,000,000
Accordion feature amount	$ 200,000,000
Fees and expenses paid with amendment				$ 529,000	$ 2,542,000
Revolving Credit Facility [Member] | Euro [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 600,000,000
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.10%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.70%
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.70%
Revolving Credit Facility [Member] | Euribor [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Interest rate	0.00%
Revolving Credit Facility [Member] | Euribor [Member] | Minimum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.10%
Revolving Credit Facility [Member] | Euribor [Member] | Maximum [Member] | Fifth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.70%
Gimatic
Debt Instrument [Line Items]
Liabilities incurred		$ 150,000,000