Debt and Commitments (Details Narrative) € in Thousands		1 Months Ended	12 Months Ended
	Sep. 19, 2018 USD ($)	Oct. 31, 2018	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 USD ($)	Oct. 19, 2018 USD ($)	Feb. 28, 2017 USD ($)	Oct. 15, 2014 USD ($)
Debt Instrument [Line Items]
Notes and overdrafts payable				$ 5,669,000			$ 2,137,000
Letters of credit outstanding, amount							9,129,000
Debt maturities, year 1							7,659,000
Debt maturities, year 2							1,862,000
Debt maturities, year 3							1,160,000
Debt maturities, year 4							831,854,000
Debt maturities, year 5							492,000
Long-term Debt, Maturities, Repayments of Principal, thereafter							100,989,000
Interest paid			$ 16,678,000	13,962,000	$ 11,471,000
Interest capitalized			$ 544,000	415,000	$ 324,000
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Notes and overdrafts payable				$ 369,000			96,000
Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 87,000,000
Line of credit facility, interest rate at period end				2.33%		0.17%	0.17%
Notes and overdrafts payable				$ 5,300,000			$ 2,041,000
Repayment period			3 months
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Carrying amount of debt				4,541,000			10,216,000
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						€ 179,000	208,589,000
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Carrying amount of debt				421,500,000			831,016,000
Line of credit facility, amount outstanding				421,500,000			831,016,000
Line of credit facility remaining borrowing capacity				$ 428,500,000			$ 168,984,000
Line of credit facility, interest rate at period end				2.65%		1.99%	1.99%
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Repayment period			2 days
Senior Notes [Member] | 3.97% Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount										$ 100,000,000
Convertible notes stated interest rate										3.97%
Carrying amount of debt				$ 100,000,000			$ 100,000,000
Prepayment percentage of principal										100.00%
Foreign bank borrowings [Member]
Debt Instrument [Line Items]
Carrying amount of debt				886,000			647,000
Euro [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Carrying amount of debt				0		€ 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] | 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] | Fourth Amendment, Maturity February 2022, Accordion Feature [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity									350,000,000
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]
Convertible notes stated 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%
SPA with Gimatic [Member]
Debt Instrument [Line Items]
Liabilities incurred	$ 150,000,000