Commitments and Contingencies (Textuals) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 10,500,000	$ 10,700,000	$ 10,300,000
Outstanding unconditional contractual commitments for the purchase of raw materials, utilities and equipment	10,700,000
Outstanding uncondintional contractual commitments due to be paid in 2015	$ 10,400,000
Contingent consideration, payable period	5 years
Contingent consideration, estimated outcome, low	$ 0
Contingent consideration, estimated outcome, high	6,000,000
Insurance Claims [Member]
Operating Leased Assets [Line Items]
Accrual for insurance obligations	8,200,000
Amount reimbursable by the insurance company	$ 4,100,000
Patents [Member] | La Model Ltd. [Member]
Operating Leased Assets [Line Items]
Weighted average useful life	17 years