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Commitments and Contingencies (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract] |  |  |
Operating Leases, Rent Expense | $ 4,800,000 | $ 4,100,000 | $ 3,700,000
Irish Grants Related to Reasearch and Development, Training and Hiring | 424,000 | 261,000 | 40,000
Deferred Credits and Other Liabilities | 3,000,000 | 2,000,000 |
Irish Grants Related to Purchased Property Plant and Equipment | 174,000 | 106,000 | 111,000
Refundable Irish Grants if Operations Cease | $ 3,000,000 |  |

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- Definition Irish Goverment Grants related to reasearch and development, training and hiring. + References No definition available. + Details
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- Definition Irish Grants Related to Purchased Property Plant and Equipement + References No definition available. + Details
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- Definition Refundable Irish Grants if Operations Cease + References No definition available. + Details
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- Details
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- Definition Total carrying amount as of the balance sheet date of unearned revenue or income, not otherwise specified in the taxonomy, which is expected to be taken into income in future periods and obligations not separately disclosed in the balance sheet (other liabilities). + References No definition available. + Details
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- Definition Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses. + References No definition available. + Details
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