Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Operating loss carryforwards
Operating loss carryforwards	$ 80,977
Hong Kong, Australia, U.K. and Ireland
Operating loss carryforwards
Operating loss carryforwards	77,068
U.S.
Operating loss carryforwards
Operating loss carryforwards	$ 3,909
Net operating loss carryforwards, expiration period	17 years