GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in goodwill for the nine months ended September 30, 2016 were as follows (in thousands):



	Technical Services			Industrial & Field Services			Kleen Performance Products		SK Environmental Services		Lodging Services			Oil and Gas Field Services		Totals
Balance at January 1, 2016	$	49,267		$	105,286		$	49,755	$	216,589	$	32,208		$	—	$	453,105
Acquired from current period acquisitions	8,989			4,925			18,629		17,524		—			—		50,067
Measurement period adjustment from prior period acquisitions	—			—			—		2,095		—			—		2,095
Decrease from disposition of business	—			(4,994		)	—									(4,994		)
Goodwill impairment charge											(34,013		)			(34,013		)
Foreign currency translation and other	(619		)	1,132			98		1,957		1,805			—		4,373
Balance at September 30, 2016	$	57,637		$	106,349		$	68,482	$	238,165	$	—		$	—	$	470,633

Summary of indefinite-lived intangible assets

As of September 30, 2016 and December 31, 2015, the Company's total finite-lived and indefinite-lived intangible assets consisted of the following (in thousands):



	September 30, 2016							December 31, 2015
	Cost		Accumulated Amortization		Net		Weighted Average Remaining Amortization Period (in years)	Cost		Accumulated Amortization		Net		Weighted Average Remaining Amortization Period (in years)
Permits	$	170,194	$	66,510	$	103,684	20.3	$	161,396	$	61,142	$	100,254	19.0
Customer and supplier relationships	389,002		120,922		268,080		12.5	374,866		99,463		275,403		10.1
Other intangible assets	40,266		27,548		12,718		7.8	31,416		22,581		8,835		1.5
Total amortizable permits and other intangible assets	599,462		214,980		384,482		14.4	567,678		183,186		384,492		10.0
Trademarks and trade names	122,855		—		122,855		Indefinite	122,326		—		122,326		Indefinite
Total permits and other intangible assets	$	722,317	$	214,980	$	507,337		$	690,004	$	183,186	$	506,818

Schedule of finite-Lived intangible assets

As of September 30, 2016 and December 31, 2015, the Company's total finite-lived and indefinite-lived intangible assets consisted of the following (in thousands):



	September 30, 2016							December 31, 2015
	Cost		Accumulated Amortization		Net		Weighted Average Remaining Amortization Period (in years)	Cost		Accumulated Amortization		Net		Weighted Average Remaining Amortization Period (in years)
Permits	$	170,194	$	66,510	$	103,684	20.3	$	161,396	$	61,142	$	100,254	19.0
Customer and supplier relationships	389,002		120,922		268,080		12.5	374,866		99,463		275,403		10.1
Other intangible assets	40,266		27,548		12,718		7.8	31,416		22,581		8,835		1.5
Total amortizable permits and other intangible assets	599,462		214,980		384,482		14.4	567,678		183,186		384,492		10.0
Trademarks and trade names	122,855		—		122,855		Indefinite	122,326		—		122,326		Indefinite
Total permits and other intangible assets	$	722,317	$	214,980	$	507,337		$	690,004	$	183,186	$	506,818

Schedule of expected amortization for the net carrying amount of finite lived intangible assets

The expected amortization of the net carrying amount of finite-lived intangible assets at September 30, 2016 was as follows (in thousands):



Years Ending December 31,	Expected Amortization
2016 (three months)	$	9,533
2017	35,325
2018	32,345
2019	29,612
2020	27,316
Thereafter	250,351
	$	384,482