Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Operations
Net revenues	$ 129,790	$ 111,989	$ 86,005
Operating Expenses:
Cost of revenues	41,189	36,450	33,950
Selling, general and administrative	36,037	31,608	29,678
Depreciation and amortization	17,218	16,552	8,762
Other expenses	446	1,282	5,694
Loss on disposition of assets	33	70	199
Total operating expenses	94,923	85,962	78,283
Operating income	34,867	26,027	7,722
Other Expenses:
Interest expense, net	(12,086)	(11,925)	(7,240)
Loss on extinguishment of debt		(1,116)	(1,649)
Total other expenses	(12,086)	(13,041)	(8,889)
Income (loss) before income taxes	22,781	12,986	(1,167)
Income tax expense	(9,042)	(2,429)	(3,130)
Net income (loss)	$ 13,739	$ 10,557	$ (4,297)
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.32	$ 0.25	$ (0.14)
Diluted (in dollars per share)	$ 0.31	$ 0.25	$ (0.14)
Weighted average shares outstanding:
Basic (in shares)	42,840	42,321	31,143
Diluted (in shares)	43,802	42,622	31,143