Income Taxes - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Taxes [Line Items]
Effective income tax rate	33.70%	31.90%
Valuation allowance	$ 0
Testing Period	5 years
AMT credit carryovers	$ 1,400,000
Unrecognized tax benefits	0
Federal
Income Taxes [Line Items]
Operating loss carry forwards	0
Unused built-in losses	53,200,000
State
Income Taxes [Line Items]
Operating loss carry forwards	54,200,000
Unused built-in losses	$ 7,500,000