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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 |  |

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