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FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Fair Value, Measurement Inputs, Disclosure [Table Text Block] | Assets and liabilities measured at fair value on a recurring basis consisted of the following at the dates set forth below (amounts in thousands):
| December 31, 2017 |  | December 31, 2016
| Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3
Investments for deferred compensation | $ | 12,393 |  |  | $ | 12,393 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,668 |  |  | $ | 9,668 |  |  | $ | — |  |  | $ | — |
Derivative financial instruments asset | 458 |  |  | — |  |  | 458 |  |  | — |  |  | 988 |  |  | — |  |  | 988 |  |  | — |
Preferred stock | 154 |  |  | — |  |  | — |  |  | 154 |  |  | 181 |  |  | — |  |  | — |  |  | 181 |
Total | $ | 13,005 |  |  | $ | 12,393 |  |  | $ | 458 |  |  | $ | 154 |  |  | $ | 10,837 |  |  | $ | 9,668 |  |  | $ | 988 |  |  | $ | 181 |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] | The following table presents the changes during the periods presented in Titan's Level 3 investments that are measured at fair value on a recurring basis (amounts in thousands):
| Preferred stock
Balance at December 31, 2015 | $ | 250 |
Total unrealized losses | (69 | )
Balance at December 31, 2016 | 181 |
Total unrealized losses | (27 | )
Balance as of December 31, 2017 | $ | 154 |

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- Definition Tabular disclosure of the amount of gains or losses for the period included in earnings or resulted in a change to net assets, have arisen from the use of significant unobservable inputs (level 3) to measure the fair value of assets, liabilities, and financial instruments classified in shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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