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GOODWILL AND OTHER INTANGIBLE ASSETS | 9 Months Ended
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Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
GOODWILL AND OTHER INTANGIBLE ASSETS | GOODWILL AND OTHER INTANGIBLE ASSETS The following table presents the changes in the carrying amount of goodwill and other intangible assets during the nine months ended September 30, 2018 ( in thousands):
| Goodwill |  | Other Intangible Assets |  | Total
Balance as of December 31, 2017 | $ | 187,591 |  |  | $ | 78,525 |  |  | $ | 266,116 |
Acquired during the period | 6,461 |  |  | 6,185 |  |  | 12,646 |
Translation adjustment | — |  |  | (352 | ) |  | (352 | )
Amortization | — |  |  | (12,575 | ) |  | (12,575 | )
Balance as of September 30, 2018 | $ | 194,052 |  |  | $ | 71,783 |  |  | $ | 265,835 |
The following table presents the goodwill balance by reportable segment as of September 30, 2018 and December 31, 2017 (in thousands):
| September 30, 2018 |  | December 31, 2017
Service Centers | $ | 160,934 |  |  | $ | 154,473 |
Innovative Pumping Solutions | 15,980 |  |  | 15,980 |
Supply Chain Services | 17,138 |  |  | 17,138 |
Total | $ | 194,052 |  |  | $ | 187,591 |
The following table presents a summary of amortizable other intangible assets ( in thousands):
| September 30, 2018 |  | December 31, 2017
| Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Amount, net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Amount, net
Customer relationships | $ | 168,255 |  |  | $ | (96,639 | ) |  | 71,616 |  |  | 162,200 |  |  | (83,806 | ) |  | 78,394 |
Non-compete agreements | 784 |  |  | (617 | ) |  | 167 |  |  | 949 |  |  | (818 | ) |  | 131 |
Total | $ | 169,039 |  |  | $ | (97,256 | ) |  | $ | 71,783 |  |  | $ | 163,149 |  |  | $ | (84,624 | ) |  | $ | 78,525 |
Gross carrying amounts as well as accumulated amortization are partially affected by the fluctuation of foreign currency rates. Other intangible assets are amortized according to estimated economic benefits over their estimated useful lives.

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- References No definition available. + Details
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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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