GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]

The following table presents the changes in the carrying amount of goodwill and other intangible assets during the year ended December 31, 2017 (in thousands):

	Goodwill		Other Intangible Assets			Total

Balances as of December 31, 2016	$	187,591	$	94,831		$	282,422
Translation adjustment		-		960			960
Amortization		-		(17,266	)		(17,266	)
Balances as of December 31, 2017	$	187,591	$	78,525		$	266,116

The following table presents the changes in the carrying amount of goodwill and other intangible assets during the year ended December 31, 2016 (in thousands):

	Goodwill			Other Intangible Assets			Total

Balances as of December 31, 2015	$	197,362		$	112,297		$	309,659
Sale of subsidiary		(9,620	)		-			(9,620	)
Purchase accounting adjustment		(151	)		-			(151	)
Translation adjustment		-			595			595
Amortization		-			(18,061	)		(18,061	)
Balances as of December 31, 2016	$	187,591		$	94,831		$	282,422

Goodwill Balance by Reportable Segment

The following table presents goodwill balance by reportable segment as of December 31, 2017 and 2016 (in thousands):

	As of December 31,
	2017		2016
Service Centers	$	154,473	$	154,473
Innovative Pumping Solutions		15,980		15,980
Supply Chain Services		17,138		17,138
Total	$	187,591	$	187,591

Amortizable Other Intangible Assets

The following table presents a summary of amortizable other intangible assets (in thousands):

	As of December 31, 2017							As of December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Carrying Amount, net		Gross Carrying Amount		Accumulated Amortization			Carrying Amount, net
Customer relationships	$	162,200	$	(83,806	)	$	78,394	$	163,022	$	(68,446	)	$	94,576
Non-compete agreements		949		(818	)		131		1,836		(1,581	)		255
Total	$	163,149	$	(84,624	)	$	78,525	$	164,858	$	(70,027	)	$	94,831

Estimated Future Annual Amortization of Intangible Assets

The estimated future annual amortization of intangible assets for each of the next five years and thereafter are as follows (in thousands):

2018	$	15,615
2019		14,170
2020		10,292
2021		8,911
2022		7,264
Thereafter		22,273
Total	$	78,525