Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2015	May. 29, 2015	Dec. 31, 2014	Dec. 20, 2013
Debt Instrument [Line Items]
Total debt	$ 537,520		$ 166,689
Less: Current portion	(5,479)		(2,495)
Long-term debt	532,041		164,194
Payment in Kind (PIK) Note [Member]
Debt Instrument [Line Items]
Total debt	111,620	$ 115,000
Debt instrument, stated interest rate		11.25%
Debt instrument, unamortized discount	3,400
Equipment, Long-Term Notes Payable [Member]
Debt Instrument [Line Items]
Total debt	2,944		2,230
Notes Payable [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate				8.50%
Term Facility [Member]
Debt Instrument [Line Items]
Total debt	404,634		148,447
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	0		10,000
Seller Notes [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Total debt	$ 18,322		6,012
Subsidiaries [Member] | Term Facility [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate	9.25%
Debt instrument, unamortized discount	$ 11,300		$ 5,000
Subsidiaries [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate at Period End	8.42%