Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Valuation Allowance [Line Items]
Statutory federal income tax rate (as a percent)	35.00%	35.00%	35.00%
Deferred tax asset, valuation allowance	$ 19,000,000	$ 20,000,000
Unrecognized tax benefits	0	0
Interest and penalties accrued	0
Interests and penalties incurred	0	0
Related to Net Operating Losses [Member]
Valuation Allowance [Line Items]
Deferred tax asset, valuation allowance		1,000,000
Related to Investment in Triton [Member]
Valuation Allowance [Line Items]
Deferred tax asset, valuation allowance		$ 19,000,000
Domestic Tax Authority [Member]
Valuation Allowance [Line Items]
Net operating loss carryforwards	$ 11,000,000