Income Taxes - Difference in Effective Tax Rate and Federal Statutory Rate (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax expense (benefit) at statutory rate (as a percent)	35.00%	35.00%	35.00%
Foreign and state taxes (as a percent)	(0.40%)	10.40%	(2.30%)
Non-deductible expenses and other (as a percent)	(15.50%)	(4.80%)	0.60%
Valuation allowance (as a percent)	(19.30%)	0.00%	0.00%
Effective income tax rate from continuing operations (as a percent)	(0.20%)	40.60%	33.30%