Commitments and Contingencies (Details) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]
Proceeds from sale-leaseback transaction	$ 24,000,000		$ 24,000,000	$ 0	$ 0
Lessee Leasing Arrangements, Operating Leases, Term of Contract		19 years 10 months
Operating Leases, Rent Expense			5,500,000	4,800,000	4,100,000
Irish Grants Related to Research and Development, Training and Hiring			1,176,000	424,000	261,000
Deferred Credits and Other Liabilities	3,100,000	3,000,000	3,100,000	3,000,000
Irish Grants Related to Purchased Property Plant and Equipment			139,000	174,000	106,000
Refundable Irish Grants if Operations Cease	$ 5,000,000		$ 5,000,000