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GOODWILL AND INTANGIBLE ASSETS (DETAILS) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016
Goodwill [Roll Forward] |  |  |
Goodwill net balance, opening | $ 47,148 | $ 47,148 |
Acquisition of Ternian, goodwill |  | 0 |
Impairment charges, goodwill |  | 0 |
Goodwill net balance, closing | 47,148 | 47,148 |
Goodwill, gross |  |  | $ 42,237
Accumulated foreign currency translation adjustment, goodwill |  |  | 4,911
Goodwill, net | 47,148 | 47,148 | 47,148
Intangible Assets with an Indefinite Life [Roll Forward] |  |  |
Intangible assets with an indefinite life net balance, opening | 26,036 | 26,036 |
Acquisition of Ternian, intangible assets with an indefinite life |  | 0 |
Impairment charges, intangible assets with an indefinite life |  | 0 |
Intangible assets with an indefinite life net balance, closing | 26,036 | 26,036 |
Intangible assets with an indefinite life, gross |  |  | 26,036
Accumulated foreign currency translation adjustment, intangible assets with an indefinite life |  |  | 0
Intangible assets with an indefinite life, net | 26,036 | 26,036 | 26,036
Intangible Assets with a Finite Life [Roll Forward] |  |  |
Intangible assets with a finite life net balance, opening | 13,674 | 15,776 |
Amortization, intangible assets with a finite life | (1,809) | (2,493) |
Intangible assets with a finite life net balance, closing | 11,865 | 13,674 |
Intangible assets with a finite life, gross |  |  | 29,166
Accumulated amortization, intangible assets with a finite life |  |  | (17,301)
Accumulated foreign currency translation adjustment, intangible assets with a finite life |  |  | 0
Intangible assets with a finite life, net | 13,674 | 15,776 | 11,865
Goodwill and Intangible Assets [Roll Forward] |  |  |
Goodwill and intangible assets net balance, opening | 86,858 | 88,960 |
Amortization, intangible assets with a finite life | (1,809) | (2,493) |
Goodwill and intangible assets net balance, closing | 85,049 | 86,858 |
Goodwill and intangible assets, gross |  |  | 97,439
Accumulated amortization, intangible assets with a finite life |  |  | (17,301)
Accumulated foreign currency translation, goodwill and intangible assets |  |  | 4,911
Goodwill and intangible assets, net | $ 86,858 | 88,960 | $ 85,049
Ternian [Member] |  |  |
Intangible Assets with a Finite Life [Roll Forward] |  |  |
Acquisition of Ternian, intangible assets with a finite life |  | 13,330 |
Goodwill and Intangible Assets [Roll Forward] |  |  |
Acquisition of Ternian, goodwill and intangible assets |  | 13,330 |
Australian Acquiree [Member] |  |  |
Intangible Assets with a Finite Life [Roll Forward] |  |  |
Impairment charges, intangible assets with a finite life |  | (12,939) |
Goodwill and Intangible Assets [Roll Forward] |  |  |
Impairment charges, goodwill and intangible assets |  | $ (12,939) |

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