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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2017
GOODWILL AND OTHER INTANGIBLES [Abstract] |
Schedule of Goodwill | The balances and changes in the carrying amount of Goodwill by segment are as follows (in thousands of dollars):
|  | United States |  | Canada |  | Other businesses |  | Total
Balance at January 1, 2016 |  | $ | 202,020 |  |  | $ | 118,529 |  |  | $ | 261,787 |  |  | $ | 582,336 |
Purchase Price Adjustments |  | — |  |  | — |  |  | 8,362 |  |  | 8,362 |
Impairment |  | — |  |  | — |  |  | (47,244 | ) |  | (47,244 | )
Translation |  | — |  |  | 3,611 |  |  | (19,915 | ) |  | (16,304 | )
Balance at December 31, 2016 |  | 202,020 |  |  | 122,140 |  |  | 202,990 |  |  | 527,150 |
Divestiture |  | (3,316 | ) |  | — |  |  | — |  |  | (3,316 | )
Impairment |  | (7,169 | ) |  | — |  |  | — |  |  | (7,169 | )
Translation |  | — |  |  | 8,282 |  |  | 18,956 |  |  | 27,238 |
Balance at December 31, 2017 |  | $ | 191,535 |  |  | $ | 130,422 |  |  | $ | 221,946 |  |  | $ | 543,903 |
Cumulative goodwill impairment charges, January 1, 2017 |  | $ | 17,038 |  |  | $ | 32,265 |  |  | $ | 70,299 |  |  | $ | 119,602 |
Impairment |  | 7,169 |  |  | — |  |  | — |  |  | 7,169 |
Cumulative goodwill impairment charges, December 31, 2017 |  | $ | 24,207 |  |  | $ | 32,265 |  |  | $ | 70,299 |  |  | $ | 126,771 |
Schedule of Finite-Lived Intangible Assets by Major Class | e balances and changes in Intangible assets - net are as follows (in thousands of dollars):
|  |  | As of December 31,
|  |  | 2017 |  | 2016
| Weighted average life |  | Gross carrying amount |  | Accumulated amortization |  | Net carrying amount |  | Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer lists and relationships | 13.8 years |  | $ | 430,026 |  |  | $ | 195,842 |  |  | $ | 234,184 |  |  | $ | 424,405 |  |  | $ | 175,112 |  |  | $ | 249,293 |
Trademarks, trade names and other | 13.5 years |  | 25,886 |  |  | 16,054 |  |  | 9,832 |  |  | 25,353 |  |  | 14,262 |  |  | 11,091 |
Non-amortized trade names and other |  |  | 137,491 |  |  | — |  |  | 137,491 |  |  | 128,282 |  |  | — |  |  | 128,282 |
Capitalized software | 4.1 years |  | 632,431 |  |  | 444,823 |  |  | 187,608 |  |  | 571,978 |  |  | 374,518 |  |  | 197,460 |
Total intangible assets | 8.2 years |  | $ | 1,225,834 |  |  | $ | 656,719 |  |  | $ | 569,115 |  |  | $ | 1,150,018 |  |  | $ | 563,892 |  |  | $ | 586,126 |
Schedule of Estimated Amortization Expense | stimated amortization expense for future periods is as follows (in thousands of dollars):
Year |  | Expense
2018 |  | $ | 91,178 |
2019 |  | 73,995 |
2020 |  | 52,409 |
2021 |  | 40,315 |
2022 |  | 28,468 |
Thereafter |  | 145,259 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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