Subsequent Events (Details) (Subsequent Event [Member]) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Jan. 02, 2014 USD ($)	Dec. 31, 2013 Mortgages [Member] Switzerland CHF	Dec. 31, 2013 Line of Credit [Member] Switzerland CHF
Subsequent Event [Line Items]
Dividends declared per share	$ 0.50
Mortgage Term		20 years
Other Commitment		18,000
Interest rate		3.20%	2.50%
Debt Instrument, Annual Principal Payment		300
Period of Annual Payments on Mortgages		19 years
Credit Facility Term			3 years
Line of Credit Facility, Maximum Borrowing Capacity			5,000