GUARANTOR - Condensed Income Statement (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
NET REVENUES	$ 117,704,000	$ 114,662,000	$ 100,592,000	$ 78,420,000	$ 101,513,000	$ 99,840,000	$ 100,201,000	$ 78,235,000	$ 411,378,000	$ 379,789,000	$ 377,618,000
Operating Expenses Abstract
Depreciation Depletion And Amortization									8,419,000	7,794,000	8,545,000
General and Administrative Expense									26,479,000	26,572,000	24,381,000
Acquisition Costs									6,836,000	1,042,000	0
Net (gain) loss on sale or disposal of assets									(2,364,000)	(379,000)	(1,321,000)
Operating Expenses									325,796,000	294,213,000	285,051,000
Operating Income Loss	32,555,000	23,159,000	20,615,000	9,253,000	28,531,000	21,205,000	23,916,000	11,924,000	85,582,000	85,576,000	92,567,000
Other income									0	0	(165,000)
TOTAL OTHER (INCOME) EXPENSE									37,961,000	38,842,000	44,067,000
INCOME (LOSS) BEFORE INCOME TAXES (BENEFIT)									47,621,000	46,734,000	48,500,000
Income Tax Expense (Benefit)									18,437,000	19,911,000	22,476,000
Net Income (Loss) Attributable to Parent	14,088,000	8,442,000	6,747,000	(93,000)	10,850,000	6,473,000	8,137,000	1,363,000	29,184,000	26,823,000	26,024,000
Preferred stock dividend									752,000	0	0
Net Income (Loss) Available to Common Stockholders, Basic	$ 13,675,000	$ 8,103,000	$ 6,747,000	$ (93,000)	$ 10,850,000	$ 6,473,000	$ 8,137,000	$ 1,363,000	28,432,000	26,823,000	26,024,000
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
NET REVENUES									1,536,000	1,309,000	615,000
Operating Expenses Abstract
Depreciation Depletion And Amortization									1,123,000	1,217,000	1,122,000
General and Administrative Expense									26,395,146.06	26,463,178.27	24,229,000
Acquisition Costs									6,835,853.94	1,041,821.73	0
Net (gain) loss on sale or disposal of assets									(600,744)	(600,744)	(1,954,282.62)
Operating Expenses									33,753,256	28,121,256	23,396,717.38
Operating Income Loss									(32,217,256)	(26,812,256)	(22,781,717.38)
Net interest expense, including amortization of deferred financing expense									0	15,000	1,000
Other income									0	0	0
Income from equity investment in subsidiaries									(79,838,256)	(73,561,256)	(71,117,717.38)
TOTAL OTHER (INCOME) EXPENSE									(79,838,256)	(73,546,256)	(71,281,717.38)
INCOME (LOSS) BEFORE INCOME TAXES (BENEFIT)									47,621,000	46,734,000	48,500,000
Income Tax Expense (Benefit)									18,437,000	19,911,000	22,476,000
Net Income (Loss) Attributable to Parent									29,184,000	26,823,000	26,024,000
Preferred stock dividend									752,000	0	0
Net Income (Loss) Available to Common Stockholders, Basic									$ 28,432,000	$ 26,823,000	$ 26,024,000