Income Taxes Valuation allowance (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Capital loss carryforwards, valuation allowance	$ 1,562	$ 2,935
Operating Loss Carryforwards, Valuation Allowance	1,281	2,046
Foreign tax credits, valuation allowance	4,405	0
Unrealized losses on short-term investments and other deferred tax assets, valuation allowance	337	415
Valuation Allowances and Reserves, Balance	$ 7,585	$ 5,396