Income Taxes - Narrative (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Oct. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations		(0.30%)	(10.20%)
Federal income tax refund received	$ 2,590
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance		2,740
UNITED KINGDOM
Valuation Allowance [Line Items]
Valuation allowance attributable to tax benefit not recognized for current period losses		500
UNITED STATES
Valuation Allowance [Line Items]
Valuation allowance attributable to tax benefit not recognized for current period losses		$ 2,500