Debt and Commitments (Details Narrative) € in Thousands, $ in Thousands			12 Months Ended
	Jun. 24, 2014 USD ($)	Sep. 27, 2013	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2014 EUR (€)	Dec. 31, 2014 USD ($)	Oct. 15, 2014 USD ($)	Jun. 30, 2014	Jun. 16, 2014 USD ($)
Debt Instrument [Line Items]
Premium paid on convertible debt redemption			$ 0	$ 14,868	$ 0
Notes and overdrafts payable			22,680				$ 8,028
Letters of credit outstanding, amount			8,689
Interest Expense [Member]
Debt Instrument [Line Items]
Fees and expenses paid with amendment					$ 1,261
Convertible Debt [Member]
Debt Instrument [Line Items]
Convertible notes			0				0
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Notes and overdrafts payable			180				$ 478
Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity			$ 56,000
Line of credit facility, interest rate at period end			1.56%			1.23%	1.23%
Notes and overdrafts payable			$ 22,500				$ 7,550
Repayment period			1 month
Convertible Debt [Member] | 3.375% Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible notes stated interest rate									3.375%	3.375%
Repayments of convertible debt, including premium on conversion	$ 70,497
Premium paid on convertible debt redemption	14,868
Adjustments to additional paid in capital, premium paid on convertible debt redemption	9,326
Adjustments to additional paid in capital, income tax benefit from premium paid on convertible debt redemption, tax	5,542
Contingent convertible debt interest, amount recaptured for income tax purpose	23,565
Reduction in short-term deferred tax liabilities	8,784
Debt instrument, convertible, effective interest rate			8.00%
Debt Conversion, Converted Instrument, Amount Redeemed with Accrued Interest	7
Debt Conversion, Converted Instrument, Amount	55,405
Convertible Note Repurchases, Par Value										$ 224
Convertible notes	$ 55,412
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Carrying amount of debt			$ 379,700				393,518
Line of credit facility maximum borrowing capacity			750,000
Line of Credit Facility With Accordian Feature, Maximum Borrowing Capacity			1,000,000
Line of credit facility, amount outstanding			379,700				393,518
Line of credit facility remaining borrowing capacity			$ 370,300				$ 356,482
Line of credit facility, interest rate at period end			1.50%			1.33%	1.33%
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
Convertible notes stated interest rate								3.97%
Carrying amount of debt			$ 100,000				$ 100,000
Debt Instrument, Prepayment Percentage of Principal Amount								100.00%
Foreign bank borrowings [Member]
Debt Instrument [Line Items]
Carrying amount of debt			421				0
Euro Member Countries, Euro | Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity			$ 500,000
Line of credit facility, amount outstanding						€ 30,945	$ 37,618
Minimum | Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Debt instrument basis spread on LIBOR			1.10%
Debt covenant ratio of EBITDA to cash interest expense			4.25
Maximum | Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Debt instrument basis spread on LIBOR			1.70%
Debt covenant ratio of senior debt to EBITDA			3.25
Debt covenant ratio of total debt to EBITDA			4.00
Maximum | Senior Notes [Member] | Adjusted for Certain Acquisitons [Member]
Debt Instrument [Line Items]
Debt covenant ratio of senior debt to EBITDA								3.50
Debt covenant ratio of total debt to EBITDA								4.25
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis		LIBOR