Pension and Postretirement Benefits (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan expense	$ 20,400,000	$ 20,000,000	$ 19,300,000
U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.00%	4.50%	3.75%
Rate of increase in compensation levels		4.25%	4.25%
Long-term rate of return on assets	6.00%	6.00%	6.25%
Prior service cost to be amortized from accumulated other comprehensive loss next year	500,000
Estimated net gain (loss) to be amortized from accumulated other comprehensive loss next year	(9,000,000)
Company contributions	20,746,000	24,194,000
MP Improvement Scale Rate	75.00%
U.S Defined Benefit Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Estimated contributions in the next year	20,000,000
Non-U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.40%	4.22%	4.16%
Rate of increase in compensation levels	3.95%	3.83%	3.84%
Long-term rate of return on assets	5.51%	5.49%	5.78%
Prior service cost to be amortized from accumulated other comprehensive loss next year	100,000
Estimated net gain (loss) to be amortized from accumulated other comprehensive loss next year	(5,300,000)
Company contributions	22,740,000	22,695,000
Estimated contributions in the next year	12,000,000
Postretirement Medical Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.75%	4.00%	3.25%
Prior service cost to be amortized from accumulated other comprehensive loss next year	200,000
Estimated net gain (loss) to be amortized from accumulated other comprehensive loss next year	600,000
Company contributions	$ 3,800,000	$ 3,700,000	$ 3,800,000
Assumed rate of increase in medical costs	7.50%	7.50%	8.00%
Minimum medical cost rate to be acheived	5.00%
Equity Securities | U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation	50.00%	50.00%
Plan assets, actual allocation	50.00%	51.00%
Equity Securities | Non-U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation	27.00%	28.00%
Plan assets, actual allocation	27.00%	28.00%
Fixed Income | U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation	50.00%	50.00%
Plan assets, actual allocation	50.00%	49.00%
Fixed Income | Non-U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation	71.00%	69.00%
Plan assets, actual allocation	71.00%	69.00%
U.K. and Netherlands Plan Assets | Non-U.S Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan assets, actual allocation	97.00%