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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Accumulated other comprehensive loss [Abstract] |  |  |  |
Foreign currency translation adjustment |  | $ (28,976) | $ (19,305) | $ (9,351)
Unrealized holding gain on available-for-sale securities, net of taxes of $263, $265 and $259 as of December 31, 2016, 2015 and 2014 |  | 424 | 434 | 429
Unfunded SERP liability, net of taxes of ($1,398), ($1,327) and ($1,325) as of December 31, 2016, 2015 and 2014 |  | (2,745) | (3,005) | (3,026)
Accumulated other comprehensive loss |  | (31,297) | (21,876) | (11,948)
Accumulated other comprehensive loss, tax [Abstract] |  |  |  |
Unrealized holding gains on available-for-sale securities, tax |  | 263 | 265 | 259
Change in unfunded SERP liability, tax |  | (1,398) | (1,327) | (1,325)
Changes in Accumulated Other Comprehensive (Loss) Income by Component [Roll Forward] |  |  |  |
Balance |  | 233,122 | 224,273 | 228,702
Other comprehensive income (loss) before reclassifications |  | (9,676) | (10,182) |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 255 | 254 |
Net current period other comprehensive income (loss) |  | (9,421) | (9,928) | (12,593)
Balance |  | 158,434 | 233,122 | 224,273
AOCI Attributable to Parent [Member] |  |  |  |
Changes in Accumulated Other Comprehensive (Loss) Income by Component [Roll Forward] |  |  |  |
Balance |  | (21,876) | (11,948) | 645
Balance |  | (31,297) | (21,876) | (11,948)
Foreign Currency Translation Adjustment [Member] |  |  |  |
Changes in Accumulated Other Comprehensive (Loss) Income by Component [Roll Forward] |  |  |  |
Balance |  | (19,305) | (9,351) |
Other comprehensive income (loss) before reclassifications |  | (9,671) | (9,954) |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 0 | 0 |
Net current period other comprehensive income (loss) |  | (9,671) | (9,954) |
Balance |  | (28,976) | (19,305) | (9,351)
Unrealized Holding Gains on Available-for-Sale Securities [Member] |  |  |  |
Changes in Accumulated Other Comprehensive (Loss) Income by Component [Roll Forward] |  |  |  |
Balance |  | 434 | 429 |
Other comprehensive income (loss) before reclassifications |  | (10) | 5 |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 0 | 0 |
Net current period other comprehensive income (loss) |  | (10) | 5 |
Balance |  | 424 | 434 | 429
Unfunded SERP Liability [Member] |  |  |  |
Changes in Accumulated Other Comprehensive (Loss) Income by Component [Roll Forward] |  |  |  |
Balance |  | (3,005) | (3,026) |
Other comprehensive income (loss) before reclassifications |  | 5 | (233) |
Amounts reclassified from accumulated other comprehensive income (loss) | [1] | 255 | 254 |
Net current period other comprehensive income (loss) |  | 260 | 21 |
Balance |  | $ (2,745) | $ (3,005) | $ (3,026)
[1] | This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan. This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.

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- Definition Tax portion in relation to net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References No definition available. + Details
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- Definition Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 + Details
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- Definition The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (j-k) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32022-110900 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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