ACCRUED LIABILITIES (restated) (Schedule of Accrued Liabilities is as Follows) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued materials	$ 22,428	$ 14,319
Accrued insurance reserves	15,341	10,512
Accrued compensation and benefits	15,024	11,251
Accrued property, sales and other taxes	14,916	5,235
Deferred consideration	4,774	0
Contingent consideration, current portion	2,635	2,250
Deferred rent	1,838	2,126
Accrued interest	1,500	1,487
Other	7,398	3,211
Accrued liabilities	$ 85,854	$ 50,391