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Income Taxes - Schedule of Differences Between Federal Tax Rate and Company's Effective Tax Rate for Results of Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
U.S. tax at statutory rate	$ 12,926	$ 12,294	$ 10,415
State income taxes, net of federal benefit	1,408	1,688	1,814
Deductible losses	0	0	(98)
Non-deductible expenses	319	292	105
Total income tax provision for continuing operations	$ 14,653	$ 14,274	$ 12,236
U.S. tax at statutory rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	3.80%	4.80%	6.10%
Deductible losses	0.00%	0.00%	(0.30%)
Nondeductible expenses	0.90%	0.80%	0.30%
Total	39.70%	40.60%	41.10%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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